Merge pull request 'HarborForge.Frontend: proposal/essential tests on current branch head' (#11) from pr/dev-2026-03-29-frontend-tests-20260405 into main

Reviewed-on: #11

package.json

@@ -6,20 +6,30 @@
   "scripts": {
     "dev": "vite",
     "build": "tsc && vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:ui": "vitest --ui"
   },
   "dependencies": {
+    "axios": "^1.6.7",
+    "dayjs": "^1.11.10",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "react-router-dom": "^6.22.0",
+    "react-router-dom": "^6.22.0"
-    "axios": "^1.6.7",
-    "dayjs": "^1.11.10"
   },
   "devDependencies": {
+    "@testing-library/dom": "^10.4.1",
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.1",
     "@types/react": "^18.3.1",
     "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^4.2.1",
+    "@vitest/ui": "^4.1.2",
+    "jsdom": "^29.0.1",
     "typescript": "^5.4.0",
-    "vite": "^5.1.0"
+    "vite": "^5.1.0",
+    "vitest": "^4.1.2"
   }
 }

src/App.tsx

@@ -14,9 +14,10 @@ import MilestoneDetailPage from '@/pages/MilestoneDetailPage'
 import NotificationsPage from '@/pages/NotificationsPage'
 import RoleEditorPage from '@/pages/RoleEditorPage'
 import MonitorPage from '@/pages/MonitorPage'
-import ProposesPage from '@/pages/ProposesPage'
+import ProposalsPage from '@/pages/ProposalsPage'
-import ProposeDetailPage from '@/pages/ProposeDetailPage'
+import ProposalDetailPage from '@/pages/ProposalDetailPage'
 import UsersPage from '@/pages/UsersPage'
+import CalendarPage from '@/pages/CalendarPage'
 import SupportDetailPage from '@/pages/SupportDetailPage'
 import MeetingDetailPage from '@/pages/MeetingDetailPage'
 import axios from 'axios'
@@ -111,15 +112,19 @@ export default function App() {
           <Routes>
             <Route path="/" element={<DashboardPage />} />
             <Route path="/tasks" element={<TasksPage />} />
-            <Route path="/tasks/:id" element={<TaskDetailPage />} />
+            <Route path="/tasks/:taskCode" element={<TaskDetailPage />} />
             <Route path="/projects" element={<ProjectsPage />} />
             <Route path="/projects/:id" element={<ProjectDetailPage />} />
             <Route path="/milestones" element={<MilestonesPage />} />
-            <Route path="/milestones/:id" element={<MilestoneDetailPage />} />
+            <Route path="/milestones/:milestoneCode" element={<MilestoneDetailPage />} />
-            <Route path="/proposes" element={<ProposesPage />} />
+            <Route path="/proposals" element={<ProposalsPage />} />
-            <Route path="/proposes/:id" element={<ProposeDetailPage />} />
+            <Route path="/proposals/:proposalCode" element={<ProposalDetailPage />} />
-            <Route path="/meetings/:meetingId" element={<MeetingDetailPage />} />
+            <Route path="/calendar" element={<CalendarPage />} />
-            <Route path="/supports/:supportId" element={<SupportDetailPage />} />
+            {/* Legacy routes for backward compatibility */}
+            <Route path="/proposes" element={<ProposalsPage />} />
+            <Route path="/proposes/:proposalCode" element={<ProposalDetailPage />} />
+            <Route path="/meetings/:meetingCode" element={<MeetingDetailPage />} />
+            <Route path="/supports/:supportCode" element={<SupportDetailPage />} />
             <Route path="/notifications" element={<NotificationsPage />} />
             <Route path="/roles" element={<RoleEditorPage />} />
             <Route path="/users" element={<UsersPage />} />

src/components/CreateTaskModal.tsx

@@ -3,7 +3,7 @@ import api from '@/services/api'
 import type { Milestone, Project, Task } from '@/types'
 
 const TASK_TYPES = [
-  { value: 'story', label: 'Story', subtypes: ['improvement', 'refactor'] },  // P9.6: 'feature' removed — must come from propose accept
+  // P9.6: 'story' removed — all story/* types are restricted; must come from Proposal Accept workflow
   { value: 'issue', label: 'Issue', subtypes: ['infrastructure', 'performance', 'regression', 'security', 'user_experience', 'defect'] },
   // P7.1: 'task' type removed — defect subtype migrated to issue/defect
   { value: 'test', label: 'Test', subtypes: ['regression', 'security', 'smoke', 'stress'] },
@@ -18,8 +18,8 @@ type Props = {
   onClose: () => void
   onCreated?: (task: Task) => void | Promise<void>
   onSaved?: (task: Task) => void | Promise<void>
-  initialProjectId?: number
+  initialProjectCode?: string
-  initialMilestoneId?: number
+  initialMilestoneCode?: string
   lockProject?: boolean
   lockMilestone?: boolean
   task?: Task | null
@@ -28,8 +28,8 @@ type Props = {
 type FormState = {
   title: string
   description: string
-  project_id: number
+  project_code: string
-  milestone_id: number
+  milestone_code: string
   task_type: string
   task_subtype: string
   priority: string
@@ -37,11 +37,11 @@ type FormState = {
   reporter_id: number
 }
 
-const makeInitialForm = (projectId = 0, milestoneId = 0): FormState => ({
+const makeInitialForm = (projectCode = '', milestoneCode = ''): FormState => ({
   title: '',
   description: '',
-  project_id: projectId,
+  project_code: projectCode,
-  milestone_id: milestoneId,
+  milestone_code: milestoneCode,
   task_type: 'issue',  // P7.1: default changed from 'task' to 'issue'
   task_subtype: '',
   priority: 'medium',
@@ -54,8 +54,8 @@ export default function CreateTaskModal({
   onClose,
   onCreated,
   onSaved,
-  initialProjectId,
+  initialProjectCode,
-  initialMilestoneId,
+  initialMilestoneCode,
   lockProject = false,
   lockMilestone = false,
   task,
@@ -63,7 +63,7 @@ export default function CreateTaskModal({
   const [projects, setProjects] = useState<Project[]>([])
   const [milestones, setMilestones] = useState<Milestone[]>([])
   const [saving, setSaving] = useState(false)
-  const [form, setForm] = useState<FormState>(makeInitialForm(initialProjectId, initialMilestoneId))
+  const [form, setForm] = useState<FormState>(makeInitialForm(initialProjectCode, initialMilestoneCode))
 
   const isEdit = Boolean(task)
   const currentType = useMemo(
@@ -72,18 +72,18 @@ export default function CreateTaskModal({
   )
   const subtypes = currentType.subtypes || []
 
-  const loadMilestones = async (projectId: number, preferredMilestoneId?: number) => {
+  const loadMilestones = async (projectCode: string, preferredMilestoneCode?: string) => {
-    if (!projectId) {
+    if (!projectCode) {
       setMilestones([])
-      setForm((f) => ({ ...f, milestone_id: 0 }))
+      setForm((f) => ({ ...f, milestone_code: '' }))
       return
     }
 
-    const { data } = await api.get<Milestone[]>(`/milestones?project_id=${projectId}`)
+    const { data } = await api.get<Milestone[]>(`/milestones?project_code=${projectCode}`)
     setMilestones(data)
-    const hasPreferred = preferredMilestoneId && data.some((m) => m.id === preferredMilestoneId)
+    const hasPreferred = preferredMilestoneCode && data.some((m) => m.milestone_code === preferredMilestoneCode)
-    const nextMilestoneId = hasPreferred ? preferredMilestoneId! : (data[0]?.id || 0)
+    const nextMilestoneCode = hasPreferred ? preferredMilestoneCode! : (data[0]?.milestone_code || '')
-    setForm((f) => ({ ...f, milestone_id: nextMilestoneId }))
+    setForm((f) => ({ ...f, milestone_code: nextMilestoneCode }))
   }
 
   useEffect(() => {
@@ -93,30 +93,30 @@ export default function CreateTaskModal({
       const { data } = await api.get<Project[]>('/projects')
       setProjects(data)
 
-      const chosenProjectId = task?.project_id || initialProjectId || data[0]?.id || 0
+      const chosenProjectCode = task?.project_code || initialProjectCode || data[0]?.project_code || ''
-      const chosenMilestoneId = task?.milestone_id || initialMilestoneId || 0
+      const chosenMilestoneCode = task?.milestone_code || initialMilestoneCode || ''
 
       setForm(task ? {
         title: task.title,
         description: task.description || '',
-        project_id: task.project_id,
+        project_code: task.project_code || '',
-        milestone_id: task.milestone_id || 0,
+        milestone_code: task.milestone_code || '',
         task_type: task.task_type,
         task_subtype: task.task_subtype || '',
         priority: task.priority,
         tags: task.tags || '',
         reporter_id: task.reporter_id,
-      } : makeInitialForm(chosenProjectId, chosenMilestoneId))
+      } : makeInitialForm(chosenProjectCode, chosenMilestoneCode))
 
-      await loadMilestones(chosenProjectId, chosenMilestoneId)
+      await loadMilestones(chosenProjectCode, chosenMilestoneCode)
     }
 
     init().catch(console.error)
-  }, [isOpen, initialProjectId, initialMilestoneId, task])
+  }, [isOpen, initialProjectCode, initialMilestoneCode, task])
 
-  const handleProjectChange = async (projectId: number) => {
+  const handleProjectChange = async (projectCode: string) => {
-    setForm((f) => ({ ...f, project_id: projectId, milestone_id: 0 }))
+    setForm((f) => ({ ...f, project_code: projectCode, milestone_code: '' }))
-    await loadMilestones(projectId)
+    await loadMilestones(projectCode)
   }
 
   const handleTypeChange = (taskType: string) => {
@@ -125,7 +125,7 @@ export default function CreateTaskModal({
 
   const submit = async (e: React.FormEvent) => {
     e.preventDefault()
-    if (!form.milestone_id) {
+    if (!form.milestone_code) {
       alert('Please select a milestone')
       return
     }
@@ -136,7 +136,7 @@ export default function CreateTaskModal({
     setSaving(true)
     try {
       const { data } = isEdit
-        ? await api.patch<Task>(`/tasks/${task!.id}`, payload)
+        ? await api.patch<Task>(`/tasks/${task!.task_code}`, payload)
         : await api.post<Task>('/tasks', payload)
       await onCreated?.(data)
       await onSaved?.(data)
@@ -181,12 +181,12 @@ export default function CreateTaskModal({
               Project
               <select
                 data-testid="project-select"
-                value={form.project_id}
+                value={form.project_code}
-                onChange={(e) => handleProjectChange(Number(e.target.value))}
+                onChange={(e) => handleProjectChange(e.target.value)}
                 disabled={lockProject}
               >
                 {projects.map((p) => (
-                  <option key={p.id} value={p.id}>{p.name}</option>
+                  <option key={p.id} value={p.project_code || ''}>{p.name}</option>
                 ))}
               </select>
             </label>
@@ -195,13 +195,13 @@ export default function CreateTaskModal({
               Milestone
               <select
                 data-testid="milestone-select"
-                value={form.milestone_id}
+                value={form.milestone_code}
-                onChange={(e) => setForm({ ...form, milestone_id: Number(e.target.value) })}
+                onChange={(e) => setForm({ ...form, milestone_code: e.target.value })}
                 disabled={lockMilestone}
               >
                 {milestones.length === 0 && <option value={0}>No milestones available</option>}
                 {milestones.map((m) => (
-                  <option key={m.id} value={m.id}>{m.title}</option>
+                  <option key={m.id} value={m.milestone_code || ''}>{m.title}</option>
                 ))}
               </select>
             </label>

src/components/MilestoneFormModal.tsx

@@ -7,14 +7,14 @@ type Props = {
   onClose: () => void
   onSaved?: (milestone: Milestone) => void | Promise<void>
   milestone?: Milestone | null
-  initialProjectId?: number
+  initialProjectCode?: string
   lockProject?: boolean
 }
 
 type FormState = {
   title: string
   description: string
-  project_id: number
+  project_code: string
   status: string
   due_date: string
   planned_release_date: string
@@ -23,7 +23,7 @@ type FormState = {
 const emptyForm: FormState = {
   title: '',
   description: '',
-  project_id: 0,
+  project_code: '',
   status: 'open',
   due_date: '',
   planned_release_date: '',
@@ -31,7 +31,7 @@ const emptyForm: FormState = {
 
 const toDateInput = (value?: string | null) => (value ? String(value).slice(0, 10) : '')
 
-export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone, initialProjectId, lockProject = false }: Props) {
+export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone, initialProjectCode, lockProject = false }: Props) {
   const [projects, setProjects] = useState<Project[]>([])
   const [saving, setSaving] = useState(false)
   const [form, setForm] = useState<FormState>(emptyForm)
@@ -42,11 +42,11 @@ export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone
     const init = async () => {
       const { data } = await api.get<Project[]>('/projects')
       setProjects(data)
-      const defaultProjectId = milestone?.project_id || initialProjectId || data[0]?.id || 0
+      const defaultProjectCode = milestone?.project_code || initialProjectCode || data[0]?.project_code || ''
       setForm({
         title: milestone?.title || '',
         description: milestone?.description || '',
-        project_id: defaultProjectId,
+        project_code: defaultProjectCode,
         status: milestone?.status || 'open',
         due_date: toDateInput(milestone?.due_date),
         planned_release_date: toDateInput(milestone?.planned_release_date),
@@ -54,7 +54,7 @@ export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone
     }
 
     init().catch(console.error)
-  }, [isOpen, milestone, initialProjectId])
+  }, [isOpen, milestone, initialProjectCode])
 
   const submit = async (e: React.FormEvent) => {
     e.preventDefault()
@@ -63,13 +63,13 @@ export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone
       const payload = {
         title: form.title,
         description: form.description || null,
-        project_id: form.project_id,
+        project_code: form.project_code,
         status: form.status,
         due_date: form.due_date || null,
         planned_release_date: form.planned_release_date || null,
       }
       if (milestone) {
-        const { data } = await api.patch<Milestone>(`/milestones/${milestone.id}`, payload)
+        const { data } = await api.patch<Milestone>(`/milestones/${milestone.milestone_code}`, payload)
         await onSaved?.(data)
       } else {
         const { data } = await api.post<Milestone>('/milestones', payload)
@@ -116,8 +116,8 @@ export default function MilestoneFormModal({ isOpen, onClose, onSaved, milestone
           <div className="task-create-grid">
             <label>
               Project
-              <select value={form.project_id} onChange={(e) => setForm((f) => ({ ...f, project_id: Number(e.target.value) }))} disabled={lockProject}>
+              <select value={form.project_code} onChange={(e) => setForm((f) => ({ ...f, project_code: e.target.value }))} disabled={lockProject}>
-                {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
+                {projects.map((p) => <option key={p.id} value={p.project_code || ''}>{p.name}</option>)}
               </select>
             </label>
 

src/components/Sidebar.tsx

@@ -32,7 +32,8 @@ export default function Sidebar({ user, onLogout }: Props) {
   const links = user ? [
     { to: '/', icon: '📊', label: 'Dashboard' },
     { to: '/projects', icon: '📁', label: 'Projects' },
-    { to: '/proposes', icon: '💡', label: 'Proposes' },
+    { to: '/proposals', icon: '💡', label: 'Proposals' },
+    { to: '/calendar', icon: '📅', label: 'Calendar' },
     { to: '/notifications', icon: '🔔', label: 'Notifications' + (unreadCount > 0 ? ' (' + unreadCount + ')' : '') },
     { to: '/monitor', icon: '📡', label: 'Monitor' },
     ...(user.is_admin ? [

src/pages/CalendarPage.tsx

@@ -0,0 +1,851 @@
+import { useState, useEffect } from 'react'
+import api from '@/services/api'
+import dayjs from 'dayjs'
+
+// Types for Calendar entities
+type SlotType = 'work' | 'on_call' | 'entertainment' | 'system'
+type EventType = 'job' | 'entertainment' | 'system_event'
+type SlotStatus = 'not_started' | 'ongoing' | 'deferred' | 'skipped' | 'paused' | 'finished' | 'aborted'
+
+interface TimeSlotResponse {
+  slot_id: string  // real int id or "plan-{planId}-{date}" for virtual
+  date: string
+  slot_type: SlotType
+  estimated_duration: number
+  scheduled_at: string  // HH:mm
+  started_at: string | null
+  attended: boolean
+  actual_duration: number | null
+  event_type: EventType | null
+  event_data: Record<string, any> | null
+  priority: number
+  status: SlotStatus
+  plan_id: number | null
+  is_virtual: boolean
+  created_at: string | null
+  updated_at: string | null
+}
+
+interface DayViewResponse {
+  date: string
+  user_id: number
+  slots: TimeSlotResponse[]
+}
+
+interface SchedulePlanResponse {
+  id: number
+  slot_type: SlotType
+  estimated_duration: number
+  event_type: string | null
+  event_data: Record<string, any> | null
+  at_time: string
+  on_day: string | null
+  on_week: number | null
+  on_month: string | null
+  is_active: boolean
+  created_at: string
+  updated_at: string | null
+}
+
+interface PlanListResponse {
+  plans: SchedulePlanResponse[]
+}
+
+type Weekday = 'sun' | 'mon' | 'tue' | 'wed' | 'thu' | 'fri' | 'sat'
+type MonthName = 'jan' | 'feb' | 'mar' | 'apr' | 'may' | 'jun' | 'jul' | 'aug' | 'sep' | 'oct' | 'nov' | 'dec'
+
+interface WorkloadWarning {
+  period: string
+  slot_type: string
+  current: number
+  minimum: number
+  message: string
+}
+
+interface ScheduleResponse {
+  slot: TimeSlotResponse
+  warnings: WorkloadWarning[]
+}
+
+const SLOT_TYPES: { value: SlotType; label: string }[] = [
+  { value: 'work', label: 'Work' },
+  { value: 'on_call', label: 'On Call' },
+  { value: 'entertainment', label: 'Entertainment' },
+  { value: 'system', label: 'System' },
+]
+
+const EVENT_TYPES: { value: EventType; label: string }[] = [
+  { value: 'job', label: 'Job' },
+  { value: 'entertainment', label: 'Entertainment' },
+  { value: 'system_event', label: 'System Event' },
+]
+
+const WEEKDAYS: { value: Weekday; label: string }[] = [
+  { value: 'sun', label: 'Sunday' },
+  { value: 'mon', label: 'Monday' },
+  { value: 'tue', label: 'Tuesday' },
+  { value: 'wed', label: 'Wednesday' },
+  { value: 'thu', label: 'Thursday' },
+  { value: 'fri', label: 'Friday' },
+  { value: 'sat', label: 'Saturday' },
+]
+
+const MONTHS: { value: MonthName; label: string }[] = [
+  { value: 'jan', label: 'January' },
+  { value: 'feb', label: 'February' },
+  { value: 'mar', label: 'March' },
+  { value: 'apr', label: 'April' },
+  { value: 'may', label: 'May' },
+  { value: 'jun', label: 'June' },
+  { value: 'jul', label: 'July' },
+  { value: 'aug', label: 'August' },
+  { value: 'sep', label: 'September' },
+  { value: 'oct', label: 'October' },
+  { value: 'nov', label: 'November' },
+  { value: 'dec', label: 'December' },
+]
+
+const SLOT_TYPE_ICONS: Record<string, string> = {
+  work: '💼',
+  on_call: '📞',
+  entertainment: '🎮',
+  system: '⚙️',
+}
+
+const STATUS_CLASSES: Record<string, string> = {
+  not_started: 'status-open',
+  ongoing: 'status-undergoing',
+  deferred: 'status-pending',
+  skipped: 'status-closed',
+  paused: 'status-pending',
+  finished: 'status-completed',
+  aborted: 'status-closed',
+}
+
+export default function CalendarPage() {
+  const [selectedDate, setSelectedDate] = useState(dayjs().format('YYYY-MM-DD'))
+  const [slots, setSlots] = useState<TimeSlotResponse[]>([])
+  const [plans, setPlans] = useState<SchedulePlanResponse[]>([])
+  const [loading, setLoading] = useState(false)
+  const [activeTab, setActiveTab] = useState<'daily' | 'plans'>('daily')
+  const [error, setError] = useState('')
+
+  // Create/Edit slot modal state
+  const [showSlotModal, setShowSlotModal] = useState(false)
+  const [editingSlot, setEditingSlot] = useState<TimeSlotResponse | null>(null)
+  const [slotForm, setSlotForm] = useState({
+    slot_type: 'work' as SlotType,
+    scheduled_at: '09:00',
+    estimated_duration: 25,
+    event_type: '' as string,
+    event_data_code: '',
+    event_data_event: '',
+    priority: 50,
+  })
+  const [slotSaving, setSlotSaving] = useState(false)
+  const [warnings, setWarnings] = useState<WorkloadWarning[]>([])
+  const [showPlanModal, setShowPlanModal] = useState(false)
+  const [editingPlan, setEditingPlan] = useState<SchedulePlanResponse | null>(null)
+  const [planSaving, setPlanSaving] = useState(false)
+  const [planForm, setPlanForm] = useState({
+    slot_type: 'work' as SlotType,
+    estimated_duration: 25,
+    at_time: '09:00',
+    on_day: '' as Weekday | '',
+    on_week: '' as string,
+    on_month: '' as MonthName | '',
+    event_type: '' as string,
+    event_data_code: '',
+    event_data_event: '',
+  })
+
+  const fetchSlots = async (date: string) => {
+    setLoading(true)
+    setError('')
+    try {
+      const { data } = await api.get<DayViewResponse>(`/calendar/day?date=${date}`)
+      setSlots(Array.isArray(data?.slots) ? data.slots : [])
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Failed to load calendar')
+      setSlots([])
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const fetchPlans = async () => {
+    try {
+      const { data } = await api.get<PlanListResponse>('/calendar/plans')
+      setPlans(Array.isArray(data?.plans) ? data.plans : [])
+    } catch (err: any) {
+      console.error('Failed to load plans:', err)
+    }
+  }
+
+  useEffect(() => {
+    fetchSlots(selectedDate)
+    fetchPlans()
+  }, [])
+
+  useEffect(() => {
+    if (activeTab === 'daily') {
+      fetchSlots(selectedDate)
+    }
+  }, [selectedDate])
+
+  const handleDateChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    setSelectedDate(e.target.value)
+  }
+
+  const goToday = () => setSelectedDate(dayjs().format('YYYY-MM-DD'))
+  const goPrev = () => setSelectedDate(dayjs(selectedDate).subtract(1, 'day').format('YYYY-MM-DD'))
+  const goNext = () => setSelectedDate(dayjs(selectedDate).add(1, 'day').format('YYYY-MM-DD'))
+
+  const formatPlanSchedule = (plan: SchedulePlanResponse) => {
+    const parts: string[] = [`at ${plan.at_time}`]
+    if (plan.on_day) parts.push(`on ${plan.on_day}`)
+    if (plan.on_week) parts.push(`week ${plan.on_week}`)
+    if (plan.on_month) parts.push(`in ${plan.on_month}`)
+    return parts.join(' · ')
+  }
+
+  // --- Slot create/edit ---
+  const openCreateSlotModal = () => {
+    setEditingSlot(null)
+    setSlotForm({
+      slot_type: 'work',
+      scheduled_at: '09:00',
+      estimated_duration: 25,
+      event_type: '',
+      event_data_code: '',
+      event_data_event: '',
+      priority: 50,
+    })
+    setWarnings([])
+    setError('')
+    setShowSlotModal(true)
+  }
+
+  const openEditSlotModal = (slot: TimeSlotResponse) => {
+    setEditingSlot(slot)
+    setSlotForm({
+      slot_type: slot.slot_type,
+      scheduled_at: slot.scheduled_at,
+      estimated_duration: slot.estimated_duration,
+      event_type: slot.event_type || '',
+      event_data_code: slot.event_data?.code || '',
+      event_data_event: slot.event_data?.event || '',
+      priority: slot.priority,
+    })
+    setWarnings([])
+    setError('')
+    setShowSlotModal(true)
+  }
+
+  const buildEventData = () => {
+    if (!slotForm.event_type) return null
+    if (slotForm.event_type === 'job') {
+      return slotForm.event_data_code ? { type: 'Task', code: slotForm.event_data_code } : null
+    }
+    if (slotForm.event_type === 'system_event') {
+      return slotForm.event_data_event ? { event: slotForm.event_data_event } : null
+    }
+    return null
+  }
+
+  const buildPlanEventData = () => {
+    if (!planForm.event_type) return null
+    if (planForm.event_type === 'job') {
+      return planForm.event_data_code ? { type: 'Task', code: planForm.event_data_code } : null
+    }
+    if (planForm.event_type === 'system_event') {
+      return planForm.event_data_event ? { event: planForm.event_data_event } : null
+    }
+    return null
+  }
+
+  const openCreatePlanModal = () => {
+    setEditingPlan(null)
+    setPlanForm({
+      slot_type: 'work',
+      estimated_duration: 25,
+      at_time: '09:00',
+      on_day: '',
+      on_week: '',
+      on_month: '',
+      event_type: '',
+      event_data_code: '',
+      event_data_event: '',
+    })
+    setError('')
+    setShowPlanModal(true)
+  }
+
+  const openEditPlanModal = (plan: SchedulePlanResponse) => {
+    setEditingPlan(plan)
+    setPlanForm({
+      slot_type: plan.slot_type,
+      estimated_duration: plan.estimated_duration,
+      at_time: plan.at_time.slice(0, 5),
+      on_day: (plan.on_day?.toLowerCase() as Weekday | undefined) || '',
+      on_week: plan.on_week ? String(plan.on_week) : '',
+      on_month: (plan.on_month?.toLowerCase() as MonthName | undefined) || '',
+      event_type: plan.event_type || '',
+      event_data_code: plan.event_data?.code || '',
+      event_data_event: plan.event_data?.event || '',
+    })
+    setError('')
+    setShowPlanModal(true)
+  }
+
+  const handleSavePlan = async () => {
+    setPlanSaving(true)
+    setError('')
+    try {
+      const payload: any = {
+        slot_type: planForm.slot_type,
+        estimated_duration: planForm.estimated_duration,
+        at_time: planForm.at_time,
+        on_day: planForm.on_day || null,
+        on_week: planForm.on_week ? Number(planForm.on_week) : null,
+        on_month: planForm.on_month || null,
+        event_type: planForm.event_type || null,
+        event_data: buildPlanEventData(),
+      }
+
+      if (editingPlan) {
+        await api.patch(`/calendar/plans/${editingPlan.id}`, payload)
+      } else {
+        await api.post('/calendar/plans', payload)
+      }
+
+      setShowPlanModal(false)
+      fetchPlans()
+      if (activeTab === 'daily') {
+        fetchSlots(selectedDate)
+      }
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Save plan failed')
+    } finally {
+      setPlanSaving(false)
+    }
+  }
+
+  const handleSaveSlot = async () => {
+    setSlotSaving(true)
+    setError('')
+    setWarnings([])
+    try {
+      const payload: any = {
+        slot_type: slotForm.slot_type,
+        scheduled_at: slotForm.scheduled_at,
+        estimated_duration: slotForm.estimated_duration,
+        priority: slotForm.priority,
+        event_type: slotForm.event_type || null,
+        event_data: buildEventData(),
+      }
+
+      let response: any
+      if (editingSlot) {
+        // Edit existing slot
+        if (editingSlot.is_virtual) {
+          response = await api.patch(`/calendar/slots/virtual/${editingSlot.slot_id}`, payload)
+        } else if (editingSlot.slot_id) {
+          response = await api.patch(`/calendar/slots/${editingSlot.slot_id}`, payload)
+        } else {
+          throw new Error('Missing slot identifier for edit')
+        }
+      } else {
+        // Create new slot
+        payload.date = selectedDate
+        response = await api.post('/calendar/slots', payload)
+      }
+
+      // Check for warnings in response
+      if (response.data?.warnings && response.data.warnings.length > 0) {
+        setWarnings(response.data.warnings)
+      }
+
+      setShowSlotModal(false)
+      fetchSlots(selectedDate)
+    } catch (err: any) {
+      const detail = err.response?.data?.detail
+      if (typeof detail === 'string' && detail.toLowerCase().includes('overlap')) {
+        setError(`⚠️ Overlap conflict: ${detail}`)
+      } else if (detail && typeof detail === 'object') {
+        const message = typeof detail.message === 'string' ? detail.message : 'Save failed'
+        const conflicts = Array.isArray(detail.conflicts) ? detail.conflicts : []
+        if (conflicts.length > 0) {
+          const summary = conflicts
+            .map((conflict: any) => `${conflict.slot_type || 'slot'} at ${conflict.scheduled_at || 'unknown time'}`)
+            .join(', ')
+          setError(`⚠️ ${message}: ${summary}`)
+        } else {
+          setError(`⚠️ ${message}`)
+        }
+      } else {
+        setError(detail || 'Save failed')
+      }
+    } finally {
+      setSlotSaving(false)
+    }
+  }
+
+  // --- Slot cancel ---
+  const handleCancelSlot = async (slot: TimeSlotResponse) => {
+    if (!confirm(`Cancel this ${slot.slot_type} slot at ${slot.scheduled_at}?`)) return
+    setError('')
+    try {
+      if (slot.is_virtual) {
+        await api.post(`/calendar/slots/virtual/${slot.slot_id}/cancel`)
+      } else if (slot.slot_id) {
+        await api.post(`/calendar/slots/${slot.slot_id}/cancel`)
+      } else {
+        throw new Error('Missing slot identifier for cancel')
+      }
+      fetchSlots(selectedDate)
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Cancel failed')
+    }
+  }
+
+  // --- Plan cancel ---
+  const handleCancelPlan = async (plan: SchedulePlanResponse) => {
+    if (!confirm(`Cancel plan #${plan.id}? This won't affect past materialized slots.`)) return
+    setError('')
+    try {
+      await api.post(`/calendar/plans/${plan.id}/cancel`)
+      fetchPlans()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Cancel plan failed')
+    }
+  }
+
+  // Check if a date is in the past
+  const isPastDate = dayjs(selectedDate).isBefore(dayjs().startOf('day'))
+
+  return (
+    <div className="calendar-page">
+      <div className="page-header" style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 16 }}>
+        <h2>📅 Calendar</h2>
+      </div>
+
+      {/* Tab switcher */}
+      <div style={{ display: 'flex', gap: 8, marginBottom: 16 }}>
+        <button
+          className={activeTab === 'daily' ? 'btn-primary' : 'btn-secondary'}
+          onClick={() => setActiveTab('daily')}
+        >
+          Daily View
+        </button>
+        <button
+          className={activeTab === 'plans' ? 'btn-primary' : 'btn-secondary'}
+          onClick={() => setActiveTab('plans')}
+        >
+          Plans ({plans.length})
+        </button>
+      </div>
+
+      {error && <div className="error-message" style={{ color: 'var(--danger)', marginBottom: 12 }}>{error}</div>}
+
+      {/* Workload warnings banner */}
+      {warnings.length > 0 && (
+        <div style={{ background: 'var(--warning-bg, #fff3cd)', border: '1px solid var(--warning-border, #ffc107)', borderRadius: 8, padding: 12, marginBottom: 12 }}>
+          <strong>⚠️ Workload Warnings:</strong>
+          <ul style={{ margin: '4px 0 0 16px', padding: 0 }}>
+            {warnings.map((w, i) => (
+              <li key={i}>{w.message} ({w.period} {w.slot_type}: {w.current}/{w.minimum} min)</li>
+            ))}
+          </ul>
+        </div>
+      )}
+
+      {activeTab === 'daily' && (
+        <>
+          {/* Date navigation */}
+          <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 16 }}>
+            <button className="btn-secondary" onClick={goPrev}>◀</button>
+            <input
+              type="date"
+              value={selectedDate}
+              onChange={handleDateChange}
+              style={{ fontSize: '1rem', padding: '4px 8px' }}
+            />
+            <button className="btn-secondary" onClick={goNext}>▶</button>
+            <button className="btn-transition" onClick={goToday}>Today</button>
+            {!isPastDate && (
+              <button className="btn-primary" onClick={openCreateSlotModal} style={{ marginLeft: 'auto' }}>+ New Slot</button>
+            )}
+          </div>
+
+          {/* Deferred slots notice */}
+          {slots.some(s => s.status === 'deferred') && (
+            <div style={{ background: 'var(--warning-bg, #fff3cd)', border: '1px solid var(--warning-border, #ffc107)', borderRadius: 8, padding: 10, marginBottom: 12, fontSize: '0.9rem' }}>
+              ⏳ Some slots are <strong>deferred</strong> — they were postponed due to scheduling conflicts or agent unavailability.
+            </div>
+          )}
+
+          {/* Slot list */}
+          {loading ? (
+            <div className="loading">Loading...</div>
+          ) : slots.length === 0 ? (
+            <div className="empty" style={{ padding: '40px 0', color: 'var(--text-secondary)', textAlign: 'center' }}>
+              No slots scheduled for {dayjs(selectedDate).format('MMMM D, YYYY')}.
+            </div>
+          ) : (
+            <div className="milestone-grid">
+              {slots.map((slot) => (
+                <div
+                  key={slot.slot_id}
+                  className="milestone-card"
+                  style={{ opacity: slot.is_virtual ? 0.8 : 1 }}
+                >
+                  <div className="milestone-card-header" style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                    <span style={{ fontSize: '1.2rem' }}>{SLOT_TYPE_ICONS[slot.slot_type] || '📋'}</span>
+                    <span className="badge">{slot.slot_type.replace('_', ' ')}</span>
+                    <span className={`badge ${STATUS_CLASSES[slot.status] || ''}`}>{slot.status.replace('_', ' ')}</span>
+                    {slot.is_virtual && <span className="badge" style={{ background: 'var(--text-secondary)', color: 'white', fontSize: '0.7rem' }}>plan</span>}
+                    <span style={{ marginLeft: 'auto', fontWeight: 600 }}>{slot.scheduled_at}</span>
+                  </div>
+                  <div style={{ marginTop: 8, display: 'flex', gap: 16, fontSize: '0.9rem', color: 'var(--text-secondary)' }}>
+                    <span>⏱ {slot.estimated_duration} min</span>
+                    <span>⚡ Priority: {slot.priority}</span>
+                    {slot.event_type && <span>📌 {slot.event_type.replace('_', ' ')}</span>}
+                  </div>
+                  {slot.event_data && slot.event_data.code && (
+                    <div style={{ marginTop: 4, fontSize: '0.85rem', color: 'var(--text-secondary)' }}>
+                      🔗 {slot.event_data.code}
+                    </div>
+                  )}
+                  {slot.event_data && slot.event_data.event && (
+                    <div style={{ marginTop: 4, fontSize: '0.85rem', color: 'var(--text-secondary)' }}>
+                      📣 {slot.event_data.event}
+                    </div>
+                  )}
+                  {/* Action buttons for non-past, modifiable slots */}
+                  {!isPastDate && (slot.status === 'not_started' || slot.status === 'deferred') && (
+                    <div style={{ marginTop: 8, display: 'flex', gap: 6 }}>
+                      <button
+                        className="btn-transition"
+                        style={{ padding: '4px 10px', fontSize: '0.8rem' }}
+                        onClick={() => openEditSlotModal(slot)}
+                      >
+                        ✏️ Edit
+                      </button>
+                      <button
+                        className="btn-danger"
+                        style={{ padding: '4px 10px', fontSize: '0.8rem' }}
+                        onClick={() => handleCancelSlot(slot)}
+                      >
+                        ❌ Cancel
+                      </button>
+                    </div>
+                  )}
+                </div>
+              ))}
+            </div>
+          )}
+        </>
+      )}
+
+      {activeTab === 'plans' && (
+        <>
+          <div style={{ display: 'flex', justifyContent: 'flex-end', marginBottom: 16 }}>
+            <button className="btn-primary" onClick={openCreatePlanModal}>+ New Plan</button>
+          </div>
+
+          <div className="milestone-grid">
+          {plans.length === 0 ? (
+            <div className="empty" style={{ padding: '40px 0', color: 'var(--text-secondary)', textAlign: 'center' }}>
+              No schedule plans configured.
+            </div>
+          ) : (
+            plans.map((plan) => (
+              <div key={plan.id} className="milestone-card">
+                <div className="milestone-card-header" style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                  <span style={{ fontSize: '1.2rem' }}>{SLOT_TYPE_ICONS[plan.slot_type] || '📋'}</span>
+                  <span className="badge">{plan.slot_type.replace('_', ' ')}</span>
+                  {!plan.is_active && <span className="badge status-closed">inactive</span>}
+                  <span style={{ marginLeft: 'auto', fontWeight: 600 }}>Plan #{plan.id}</span>
+                </div>
+                <div style={{ marginTop: 8, fontSize: '0.9rem', color: 'var(--text-secondary)' }}>
+                  <div>🔄 {formatPlanSchedule(plan)}</div>
+                  <div>⏱ {plan.estimated_duration} min</div>
+                  {plan.event_type && <div>📌 {plan.event_type.replace('_', ' ')}</div>}
+                </div>
+                {plan.is_active && (
+                  <div style={{ marginTop: 8, display: 'flex', gap: 8 }}>
+                    <button
+                      className="btn-transition"
+                      style={{ padding: '4px 10px', fontSize: '0.8rem' }}
+                      onClick={() => openEditPlanModal(plan)}
+                    >
+                      ✏️ Edit Plan
+                    </button>
+                    <button
+                      className="btn-danger"
+                      style={{ padding: '4px 10px', fontSize: '0.8rem' }}
+                      onClick={() => handleCancelPlan(plan)}
+                    >
+                      ❌ Cancel Plan
+                    </button>
+                  </div>
+                )}
+              </div>
+            ))
+          )}
+          </div>
+        </>
+      )}
+
+      {/* Create/Edit Slot Modal */}
+      {showSlotModal && (
+        <div className="modal-overlay" onClick={() => setShowSlotModal(false)}>
+          <div className="modal" onClick={(e) => e.stopPropagation()}>
+            <h3>{editingSlot ? 'Edit Slot' : 'New Slot'}</h3>
+            <p style={{ color: 'var(--text-secondary)', fontSize: '0.9rem' }}>
+              Date: <strong>{dayjs(selectedDate).format('MMMM D, YYYY')}</strong>
+            </p>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Slot Type</strong>
+              <select
+                value={slotForm.slot_type}
+                onChange={(e) => setSlotForm({ ...slotForm, slot_type: e.target.value as SlotType })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                {SLOT_TYPES.map((t) => (
+                  <option key={t.value} value={t.value}>{t.label}</option>
+                ))}
+              </select>
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Scheduled At</strong>
+              <input
+                type="time"
+                value={slotForm.scheduled_at}
+                onChange={(e) => setSlotForm({ ...slotForm, scheduled_at: e.target.value })}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Estimated Duration (minutes, 1–50)</strong>
+              <input
+                type="number"
+                min={1}
+                max={50}
+                value={slotForm.estimated_duration}
+                onChange={(e) => setSlotForm({ ...slotForm, estimated_duration: Number(e.target.value) })}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Priority (0–99)</strong>
+              <input
+                type="number"
+                min={0}
+                max={99}
+                value={slotForm.priority}
+                onChange={(e) => setSlotForm({ ...slotForm, priority: Number(e.target.value) })}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Event Type</strong>
+              <select
+                value={slotForm.event_type}
+                onChange={(e) => setSlotForm({ ...slotForm, event_type: e.target.value })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="">None</option>
+                {EVENT_TYPES.map((t) => (
+                  <option key={t.value} value={t.value}>{t.label}</option>
+                ))}
+              </select>
+            </label>
+
+            {slotForm.event_type === 'job' && (
+              <label style={{ display: 'block', marginBottom: 8 }}>
+                <strong>Job Code</strong>
+                <input
+                  type="text"
+                  value={slotForm.event_data_code}
+                  onChange={(e) => setSlotForm({ ...slotForm, event_data_code: e.target.value })}
+                  placeholder="e.g. TASK-42"
+                  style={{ width: '100%', marginTop: 4 }}
+                />
+              </label>
+            )}
+
+            {slotForm.event_type === 'system_event' && (
+              <label style={{ display: 'block', marginBottom: 8 }}>
+                <strong>System Event</strong>
+                <select
+                  value={slotForm.event_data_event}
+                  onChange={(e) => setSlotForm({ ...slotForm, event_data_event: e.target.value })}
+                  style={{ width: '100%', marginTop: 4 }}
+                >
+                  <option value="">Select event</option>
+                  <option value="ScheduleToday">Schedule Today</option>
+                  <option value="SummaryToday">Summary Today</option>
+                  <option value="ScheduledGatewayRestart">Scheduled Gateway Restart</option>
+                </select>
+              </label>
+            )}
+
+            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
+              <button
+                className="btn-primary"
+                onClick={handleSaveSlot}
+                disabled={slotSaving}
+              >
+                {slotSaving ? 'Saving...' : 'Save'}
+              </button>
+              <button className="btn-back" onClick={() => setShowSlotModal(false)}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {showPlanModal && (
+        <div className="modal-overlay" onClick={() => setShowPlanModal(false)}>
+          <div className="modal" onClick={(e) => e.stopPropagation()}>
+            <h3>{editingPlan ? 'Edit Plan' : 'New Plan'}</h3>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Slot Type</strong>
+              <select
+                value={planForm.slot_type}
+                onChange={(e) => setPlanForm({ ...planForm, slot_type: e.target.value as SlotType })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                {SLOT_TYPES.map((t) => (
+                  <option key={t.value} value={t.value}>{t.label}</option>
+                ))}
+              </select>
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>At Time</strong>
+              <input
+                type="time"
+                value={planForm.at_time}
+                onChange={(e) => setPlanForm({ ...planForm, at_time: e.target.value })}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Estimated Duration (minutes, 1–50)</strong>
+              <input
+                type="number"
+                min={1}
+                max={50}
+                value={planForm.estimated_duration}
+                onChange={(e) => setPlanForm({ ...planForm, estimated_duration: Number(e.target.value) })}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>On Day (optional)</strong>
+              <select
+                value={planForm.on_day}
+                onChange={(e) => setPlanForm({ ...planForm, on_day: e.target.value as Weekday | '' })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="">Every day</option>
+                {WEEKDAYS.map((d) => (
+                  <option key={d.value} value={d.value}>{d.label}</option>
+                ))}
+              </select>
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>On Week (optional)</strong>
+              <select
+                value={planForm.on_week}
+                onChange={(e) => setPlanForm({ ...planForm, on_week: e.target.value })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="">Every matching week</option>
+                <option value="1">1</option>
+                <option value="2">2</option>
+                <option value="3">3</option>
+                <option value="4">4</option>
+              </select>
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>On Month (optional)</strong>
+              <select
+                value={planForm.on_month}
+                onChange={(e) => setPlanForm({ ...planForm, on_month: e.target.value as MonthName | '' })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="">Every month</option>
+                {MONTHS.map((m) => (
+                  <option key={m.value} value={m.value}>{m.label}</option>
+                ))}
+              </select>
+            </label>
+
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Event Type</strong>
+              <select
+                value={planForm.event_type}
+                onChange={(e) => setPlanForm({ ...planForm, event_type: e.target.value })}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="">None</option>
+                {EVENT_TYPES.map((t) => (
+                  <option key={t.value} value={t.value}>{t.label}</option>
+                ))}
+              </select>
+            </label>
+
+            {planForm.event_type === 'job' && (
+              <label style={{ display: 'block', marginBottom: 8 }}>
+                <strong>Job Code</strong>
+                <input
+                  type="text"
+                  value={planForm.event_data_code}
+                  onChange={(e) => setPlanForm({ ...planForm, event_data_code: e.target.value })}
+                  placeholder="e.g. TASK-42"
+                  style={{ width: '100%', marginTop: 4 }}
+                />
+              </label>
+            )}
+
+            {planForm.event_type === 'system_event' && (
+              <label style={{ display: 'block', marginBottom: 8 }}>
+                <strong>System Event</strong>
+                <select
+                  value={planForm.event_data_event}
+                  onChange={(e) => setPlanForm({ ...planForm, event_data_event: e.target.value })}
+                  style={{ width: '100%', marginTop: 4 }}
+                >
+                  <option value="">Select event</option>
+                  <option value="ScheduleToday">Schedule Today</option>
+                  <option value="SummaryToday">Summary Today</option>
+                  <option value="ScheduledGatewayRestart">Scheduled Gateway Restart</option>
+                </select>
+              </label>
+            )}
+
+            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
+              <button className="btn-primary" onClick={handleSavePlan} disabled={planSaving}>
+                {planSaving ? 'Saving...' : 'Save Plan'}
+              </button>
+              <button className="btn-back" onClick={() => setShowPlanModal(false)}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  )
+}

src/pages/CreateTaskPage.tsx

@@ -4,7 +4,7 @@ import api from '@/services/api'
 import type { Project, Milestone } from '@/types'
 
 const TASK_TYPES = [
-  { value: 'story', label: 'Story', subtypes: ['improvement', 'refactor'] },  // P9.6: 'feature' removed — must come from propose accept
+  // P9.6: 'story' removed — all story/* types are restricted; must come from Proposal Accept workflow
   { value: 'issue', label: 'Issue', subtypes: ['infrastructure', 'performance', 'regression', 'security', 'user_experience', 'defect'] },
   // P7.1: 'task' type removed — defect subtype migrated to issue/defect
   { value: 'test', label: 'Test', subtypes: ['regression', 'security', 'smoke', 'stress'] },
@@ -19,7 +19,7 @@ export default function CreateTaskPage() {
   const [projects, setProjects] = useState<Project[]>([])
   const [milestones, setMilestones] = useState<Milestone[]>([])
   const [form, setForm] = useState({
-    title: '', description: '', project_id: 0, milestone_id: 0, task_type: 'issue',  // P7.1: default changed from 'task' to 'issue'
+    title: '', description: '', project_code: '', milestone_code: '', task_type: 'issue',  // P7.1: default changed from 'task' to 'issue'
     task_subtype: '', priority: 'medium', tags: '', reporter_id: 1,
   })
 
@@ -27,21 +27,21 @@ export default function CreateTaskPage() {
     api.get<Project[]>('/projects').then(({ data }) => {
       setProjects(data)
       if (data.length) {
-        setForm((f) => ({ ...f, project_id: data[0].id }))
+        setForm((f) => ({ ...f, project_code: data[0].project_code || '' }))
         // Load milestones for the first project
-        api.get<Milestone[]>(`/milestones?project_id=${data[0].id}`).then(({ data: ms }) => {
+        api.get<Milestone[]>(`/milestones?project_code=${data[0].project_code}`).then(({ data: ms }) => {
           setMilestones(ms)
-          if (ms.length) setForm((f) => ({ ...f, milestone_id: ms[0].id }))
+          if (ms.length) setForm((f) => ({ ...f, milestone_code: ms[0].milestone_code || '' }))
         })
       }
     })
   }, [])
 
-  const handleProjectChange = (projectId: number) => {
+  const handleProjectChange = (projectCode: string) => {
-    setForm(f => ({ ...f, project_id: projectId, milestone_id: 0 }))
+    setForm(f => ({ ...f, project_code: projectCode, milestone_code: '' }))
-    api.get<Milestone[]>(`/milestones?project_id=${projectId}`).then(({ data: ms }) => {
+    api.get<Milestone[]>(`/milestones?project_code=${projectCode}`).then(({ data: ms }) => {
       setMilestones(ms)
-      if (ms.length) setForm((f) => ({ ...f, milestone_id: ms[0].id }))
+      if (ms.length) setForm((f) => ({ ...f, milestone_code: ms[0].milestone_code || '' }))
     })
   }
 
@@ -54,7 +54,7 @@ export default function CreateTaskPage() {
 
   const submit = async (e: React.FormEvent) => {
     e.preventDefault()
-    if (!form.milestone_id) {
+    if (!form.milestone_code) {
       alert('Please select a milestone')
       return
     }
@@ -71,14 +71,14 @@ export default function CreateTaskPage() {
         <label>Title <input data-testid="task-title-input" required value={form.title} onChange={(e) => setForm({ ...form, title: e.target.value })} /></label>
         <label>Description <textarea data-testid="task-description-input" value={form.description} onChange={(e) => setForm({ ...form, description: e.target.value })} /></label>
         <label>Projects
-          <select data-testid="project-select" value={form.project_id} onChange={(e) => handleProjectChange(Number(e.target.value))}>
+          <select data-testid="project-select" value={form.project_code} onChange={(e) => handleProjectChange(e.target.value)}>
-            {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
+            {projects.map((p) => <option key={p.id} value={p.project_code || ''}>{p.name}</option>)}
           </select>
         </label>
         <label>Milestone
-          <select data-testid="milestone-select" value={form.milestone_id} onChange={(e) => setForm({ ...form, milestone_id: Number(e.target.value) })}>
+          <select data-testid="milestone-select" value={form.milestone_code} onChange={(e) => setForm({ ...form, milestone_code: e.target.value })}>
-            {milestones.length === 0 && <option value={0}>No milestones available</option>}
+            {milestones.length === 0 && <option value="">No milestones available</option>}
-            {milestones.map((m) => <option key={m.id} value={m.id}>{m.title}</option>)}
+            {milestones.map((m) => <option key={m.id} value={m.milestone_code || ''}>{m.title}</option>)}
           </select>
         </label>
         <label>Type

src/pages/DashboardPage.tsx

@@ -1,4 +1,5 @@
 import { useState, useEffect } from 'react'
+import { Link } from 'react-router-dom'
 import api from '@/services/api'
 import type { DashboardStats, Task } from '@/types'
 
@@ -60,8 +61,8 @@ export default function DashboardPage() {
           <tbody>
             {(stats.recent_tasks || []).map((i) => (
               <tr key={i.id}>
-                <td>{i.task_code || `#${i.id}`}</td>
+                <td>{i.task_code || '—'}</td>
-                <td><a href={`/tasks/${i.task_code || i.id}`}>{i.title}</a></td>
+                <td>{i.task_code ? <Link to={`/tasks/${i.task_code}`}>{i.title}</Link> : i.title}</td>
                 <td><span className={`badge status-${i.status}`}>{i.status}</span></td>
                 <td><span className={`badge priority-${i.priority}`}>{i.priority}</span></td>
                 <td>{i.task_type}</td><td>{i.task_subtype || "-"}</td>

src/pages/MeetingDetailPage.tsx

@@ -29,7 +29,7 @@ interface MeetingItem {
 const STATUS_OPTIONS = ['scheduled', 'in_progress', 'completed', 'cancelled']
 
 export default function MeetingDetailPage() {
-  const { meetingId } = useParams()
+  const { meetingCode } = useParams()
   const navigate = useNavigate()
   const { user } = useAuth()
   const [meeting, setMeeting] = useState<MeetingItem | null>(null)
@@ -46,7 +46,7 @@ export default function MeetingDetailPage() {
 
   const fetchMeeting = async () => {
     try {
-      const { data } = await api.get<MeetingItem>(`/meetings/${meetingId}`)
+      const { data } = await api.get<MeetingItem>(`/meetings/${meetingCode}`)
       setMeeting(data)
       setEditForm({
         title: data.title,
@@ -63,14 +63,14 @@ export default function MeetingDetailPage() {
 
   useEffect(() => {
     fetchMeeting()
-  }, [meetingId])
+  }, [meetingCode])
 
   const handleAttend = async () => {
     if (!meeting) return
     setSaving(true)
     setMessage('')
     try {
-      const { data } = await api.post<MeetingItem>(`/meetings/${meetingId}/attend`)
+      const { data } = await api.post<MeetingItem>(`/meetings/${meetingCode}/attend`)
       setMeeting(data)
       setMessage('You have joined this meeting')
     } catch (err: any) {
@@ -85,7 +85,7 @@ export default function MeetingDetailPage() {
     setSaving(true)
     setMessage('')
     try {
-      const { data } = await api.patch<MeetingItem>(`/meetings/${meetingId}`, {
+      const { data } = await api.patch<MeetingItem>(`/meetings/${meetingCode}`, {
         status: newStatus,
       })
       setMeeting(data)
@@ -117,7 +117,7 @@ export default function MeetingDetailPage() {
         return
       }
 
-      const { data } = await api.patch<MeetingItem>(`/meetings/${meetingId}`, payload)
+      const { data } = await api.patch<MeetingItem>(`/meetings/${meetingCode}`, payload)
       setMeeting(data)
       setEditMode(false)
       setMessage('Meeting updated')
@@ -133,7 +133,7 @@ export default function MeetingDetailPage() {
     if (!confirm(`Delete meeting ${meeting.meeting_code || meeting.id}? This cannot be undone.`)) return
     setSaving(true)
     try {
-      await api.delete(`/meetings/${meetingId}`)
+      await api.delete(`/meetings/${meetingCode}`)
       navigate(-1)
     } catch (err: any) {
       setMessage(err.response?.data?.detail || 'Failed to delete meeting')

src/pages/MilestoneDetailPage.tsx

@@ -24,7 +24,7 @@ interface MilestoneTask {
 }
 
 export default function MilestoneDetailPage() {
-  const { id } = useParams()
+  const { milestoneCode } = useParams()
   const navigate = useNavigate()
   const { user } = useAuth()
   const [milestone, setMilestone] = useState<Milestone | null>(null)
@@ -49,7 +49,8 @@ export default function MilestoneDetailPage() {
   const [preflight, setPreflight] = useState<{ freeze?: { allowed: boolean; reason: string | null }; start?: { allowed: boolean; reason: string | null } } | null>(null)
 
   const fetchMilestone = () => {
-    api.get<Milestone>(`/milestones/${id}`).then(({ data }) => {
+    if (!milestoneCode) return
+    api.get<Milestone>(`/milestones/${milestoneCode}`).then(({ data }) => {
       setMilestone(data)
       if (data.project_id) {
         api.get<Project>(`/projects/${data.project_id}`).then(({ data: proj }) => {
@@ -57,40 +58,44 @@ export default function MilestoneDetailPage() {
           setProjectCode(proj.project_code || '')
         })
         api.get<ProjectMember[]>(`/projects/${data.project_id}/members`).then(({ data }) => setMembers(data)).catch(() => {})
-        fetchPreflight(data.project_id, data.id)
+        if (data.project_code && data.milestone_code) {
+          fetchPreflight(data.project_code, data.milestone_code)
+        }
+      }
+      if (data.milestone_code) {
+        api.get<MilestoneProgress>(`/milestones/${data.milestone_code}/progress`).then(({ data: prog }) => setProgress(prog)).catch(() => {})
       }
-      api.get<MilestoneProgress>(`/milestones/${data.id}/progress`).then(({ data: prog }) => setProgress(prog)).catch(() => {})
     })
   }
 
-  const fetchPreflight = (projectId: number, milestoneId: number) => {
+  const fetchPreflight = (projectCode: string, milestoneCode: string) => {
-    api.get(`/projects/${projectId}/milestones/${milestoneId}/actions/preflight`)
+    api.get(`/projects/${projectCode}/milestones/${milestoneCode}/actions/preflight`)
       .then(({ data }) => setPreflight(data))
       .catch(() => setPreflight(null))
   }
 
   useEffect(() => {
     fetchMilestone()
-  }, [id])
+  }, [milestoneCode])
 
   const refreshMilestoneItems = () => {
-    if (!projectCode || !milestone) return
+    if (!projectCode || !milestone?.milestone_code) return
-    api.get<MilestoneTask[]>(`/tasks/${projectCode}/${milestone.id}`).then(({ data }) => setTasks(data)).catch(() => {})
+    api.get<MilestoneTask[]>(`/tasks/${projectCode}/${milestone.milestone_code}`).then(({ data }) => setTasks(data)).catch(() => {})
-    api.get<any[]>(`/supports/${projectCode}/${milestone.id}`).then(({ data }) => setSupports(data)).catch(() => {})
+    api.get<any[]>(`/supports/${projectCode}/${milestone.milestone_code}`).then(({ data }) => setSupports(data)).catch(() => {})
-    api.get<any[]>(`/meetings/${projectCode}/${milestone.id}`).then(({ data }) => setMeetings(data)).catch(() => {})
+    api.get<any[]>(`/meetings/${projectCode}/${milestone.milestone_code}`).then(({ data }) => setMeetings(data)).catch(() => {})
   }
 
   useEffect(() => {
     refreshMilestoneItems()
-  }, [projectCode, milestone?.id])
+  }, [projectCode, milestone?.milestone_code])
 
   const createItem = async (type: 'supports' | 'meetings') => {
-    if (!newTitle.trim() || !projectCode || !milestone) return
+    if (!newTitle.trim() || !projectCode || !milestone?.milestone_code) return
     const payload = {
       title: newTitle,
       description: newDesc || null,
     }
-    await api.post(`/${type}/${projectCode}/${milestone.id}`, payload)
+    await api.post(`/${type}/${projectCode}/${milestone.milestone_code}`, payload)
     setNewTitle('')
     setNewDesc('')
     setShowCreateSupport(false)
@@ -119,10 +124,12 @@ export default function MilestoneDetailPage() {
     setActionLoading(action)
     setActionError(null)
     try {
-      await api.post(`/projects/${project.id}/milestones/${milestone.id}/actions/${action}`, body ?? {})
+      await api.post(`/projects/${project.project_code}/milestones/${milestone.milestone_code}/actions/${action}`, body ?? {})
       fetchMilestone()
       refreshMilestoneItems()
-      fetchPreflight(project.id, milestone.id)
+      if (project.project_code && milestone.milestone_code) {
+        fetchPreflight(project.project_code, milestone.milestone_code)
+      }
     } catch (err: any) {
       const detail = err?.response?.data?.detail
       setActionError(typeof detail === 'string' ? detail : `${action} failed`)
@@ -142,8 +149,8 @@ export default function MilestoneDetailPage() {
   if (!milestone) return <div className="loading">Loading...</div>
 
   const renderTaskRow = (t: MilestoneTask) => (
-    <tr key={t.id} className="clickable" onClick={() => navigate(`/tasks/${t.task_code || t.id}`)}>
+    <tr key={t.id} className={t.task_code ? 'clickable' : ''} onClick={() => t.task_code && navigate(`/tasks/${t.task_code}`)}>
-      <td>{t.task_code || t.id}</td>
+      <td>{t.task_code || '—'}</td>
       <td className="task-title">{t.title}</td>
       <td><span className={`badge status-${t.task_status || t.status}`}>{t.task_status || t.status}</span></td>
       <td>{t.estimated_effort || '-'}</td>
@@ -297,8 +304,8 @@ export default function MilestoneDetailPage() {
         <CreateTaskModal
           isOpen={showCreateTask}
           onClose={() => setShowCreateTask(false)}
-          initialProjectId={milestone.project_id}
+          initialProjectCode={milestone.project_code || ''}
-          initialMilestoneId={milestone.id}
+          initialMilestoneCode={milestone.milestone_code || ''}
           lockProject
           lockMilestone
           onCreated={() => {
@@ -356,8 +363,8 @@ export default function MilestoneDetailPage() {
               <thead><tr><th>Code</th><th>Title</th><th>Status</th><th>Priority</th></tr></thead>
               <tbody>
                 {supports.map((i) => (
-                  <tr key={i.id} className="clickable" onClick={() => navigate(`/supports/${i.support_code || i.id}`)}>
+                  <tr key={i.id} className={i.support_code ? 'clickable' : ''} onClick={() => i.support_code && navigate(`/supports/${i.support_code}`)}>
-                    <td>{i.support_code || i.id}</td>
+                    <td>{i.support_code || '—'}</td>
                     <td className="task-title">{i.title}</td>
                     <td><span className={`badge status-${i.status}`}>{i.status}</span></td>
                     <td><span className={`badge priority-${i.priority}`}>{i.priority}</span></td>
@@ -373,8 +380,8 @@ export default function MilestoneDetailPage() {
               <thead><tr><th>Code</th><th>Title</th><th>Status</th><th>Priority</th></tr></thead>
               <tbody>
                 {meetings.map((i) => (
-                  <tr key={i.id} className="clickable" onClick={() => navigate(`/meetings/${i.meeting_code || i.id}`)}>
+                  <tr key={i.id} className={i.meeting_code ? 'clickable' : ''} onClick={() => i.meeting_code && navigate(`/meetings/${i.meeting_code}`)}>
-                    <td>{i.meeting_code || i.id}</td>
+                    <td>{i.meeting_code || '—'}</td>
                     <td className="task-title">{i.title}</td>
                     <td><span className={`badge status-${i.status}`}>{i.status}</span></td>
                     <td><span className={`badge priority-${i.priority}`}>{i.priority}</span></td>

src/pages/MilestonesPage.tsx

@@ -13,7 +13,7 @@ export default function MilestonesPage() {
   const navigate = useNavigate()
 
   const fetchMilestones = () => {
-    const params = projectFilter ? `?project_id=${projectFilter}` : ''
+    const params = projectFilter ? `?project_code=${projectFilter}` : ''
     api.get<Milestone[]>(`/milestones${params}`).then(({ data }) => setMilestones(data))
   }
 
@@ -35,21 +35,21 @@ export default function MilestonesPage() {
       <div className="filters">
         <select value={projectFilter} onChange={(e) => setProjectFilter(e.target.value)}>
           <option value="">All projects</option>
-          {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
+          {projects.map((p) => <option key={p.id} value={p.project_code || ''}>{p.name}</option>)}
         </select>
       </div>
 
       <MilestoneFormModal
         isOpen={showCreate}
         onClose={() => setShowCreate(false)}
-        initialProjectId={projectFilter ? Number(projectFilter) : undefined}
+        initialProjectCode={projectFilter || undefined}
         lockProject={Boolean(projectFilter)}
         onSaved={() => fetchMilestones()}
       />
 
       <div className="milestone-grid">
         {milestones.map((ms) => (
-          <div key={ms.id} className="milestone-card" onClick={() => navigate(`/milestones/${ms.milestone_code || ms.id}`)}>
+          <div key={ms.id} className="milestone-card" onClick={() => ms.milestone_code && navigate(`/milestones/${ms.milestone_code}`)}>
             <div className="milestone-card-header">
               <span className={`badge status-${ms.status}`}>{ms.status}</span>
               <h3>{ms.title}</h3>{ms.milestone_code && <span className="badge" style={{ marginLeft: 8, fontSize: '0.75em' }}>{ms.milestone_code}</span>}

src/pages/NotificationsPage.tsx

@@ -52,7 +52,7 @@ export default function NotificationsPage() {
             className={`notification-item ${n.is_read ? 'read' : 'unread'}`}
             onClick={() => {
               if (!n.is_read) markRead(n.id)
-              if (n.task_id) navigate(`/tasks/${n.task_id}`)
+              if (n.task_code) navigate(`/tasks/${n.task_code}`)
             }}
           >
             <div className="notification-dot">{n.is_read ? '' : '●'}</div>

src/pages/ProjectDetailPage.tsx

@@ -114,7 +114,7 @@ export default function ProjectDetailPage() {
           {canEditProject && <button className="btn-sm" onClick={() => setShowMilestoneModal(true)}>+ New</button>}
         </h3>
         {milestones.map((ms) => (
-          <div key={ms.id} className="milestone-item" onClick={() => navigate(`/milestones/${ms.milestone_code || ms.id}`)}>
+          <div key={ms.id} className="milestone-item" onClick={() => ms.milestone_code && navigate(`/milestones/${ms.milestone_code}`)}>
             <span className={`badge status-${ms.status === 'open' ? 'open' : ms.status === 'closed' ? 'closed' : 'in_progress'}`}>{ms.status}</span>
             <span className="milestone-title">{ms.title}</span>
             {ms.due_date && <span className="text-dim"> · Due {dayjs(ms.due_date).format('YYYY-MM-DD')}</span>}
@@ -136,7 +136,7 @@ export default function ProjectDetailPage() {
       <MilestoneFormModal
         isOpen={showMilestoneModal}
         onClose={() => setShowMilestoneModal(false)}
-        initialProjectId={project.id}
+        initialProjectCode={project.project_code || ''}
         lockProject
         onSaved={() => fetchProject()}
       />

src/pages/ProposalDetailPage.tsx

@@ -0,0 +1,465 @@
+import { useState, useEffect } from 'react'
+import { useParams, useNavigate, useSearchParams } from 'react-router-dom'
+import api from '@/services/api'
+import type { Proposal, Milestone, Essential, EssentialType } from '@/types'
+import dayjs from 'dayjs'
+import CopyableCode from '@/components/CopyableCode'
+
+export default function ProposalDetailPage() {
+  const { proposalCode } = useParams()
+  const [searchParams] = useSearchParams()
+  const projectCode = searchParams.get('project_code')
+  const navigate = useNavigate()
+
+  const [proposal, setProposal] = useState<Proposal | null>(null)
+  const [milestones, setMilestones] = useState<Milestone[]>([])
+  const [showAccept, setShowAccept] = useState(false)
+  const [selectedMilestone, setSelectedMilestone] = useState<string>('')
+  const [actionLoading, setActionLoading] = useState(false)
+  const [error, setError] = useState('')
+
+  // Edit state
+  const [showEdit, setShowEdit] = useState(false)
+  const [editTitle, setEditTitle] = useState('')
+  const [editDescription, setEditDescription] = useState('')
+  const [editLoading, setEditLoading] = useState(false)
+
+  // Essential state
+  const [essentials, setEssentials] = useState<Essential[]>([])
+  const [loadingEssentials, setLoadingEssentials] = useState(false)
+
+  // Essential create/edit state
+  const [showEssentialModal, setShowEssentialModal] = useState(false)
+  const [editingEssential, setEditingEssential] = useState<Essential | null>(null)
+  const [essentialTitle, setEssentialTitle] = useState('')
+  const [essentialType, setEssentialType] = useState<EssentialType>('feature')
+  const [essentialDesc, setEssentialDesc] = useState('')
+  const [essentialLoading, setEssentialLoading] = useState(false)
+
+  const fetchProposal = () => {
+    if (!projectCode || !proposalCode) return
+    api.get<Proposal>(`/projects/${projectCode}/proposals/${proposalCode}`).then(({ data }) => setProposal(data))
+  }
+
+  useEffect(() => {
+    fetchProposal()
+  }, [proposalCode, projectCode])
+
+  const loadMilestones = () => {
+    if (!projectCode) return
+    api.get<Milestone[]>(`/milestones?project_code=${projectCode}`)
+      .then(({ data }) => setMilestones(data.filter((m) => m.status === 'open')))
+  }
+
+  const fetchEssentials = () => {
+    if (!projectCode || !proposalCode) return
+    setLoadingEssentials(true)
+    api.get<Essential[]>(`/projects/${projectCode}/proposals/${proposalCode}/essentials`)
+      .then(({ data }) => setEssentials(data))
+      .finally(() => setLoadingEssentials(false))
+  }
+
+  useEffect(() => {
+    fetchEssentials()
+  }, [proposalCode, projectCode])
+
+  const handleAccept = async () => {
+    if (!selectedMilestone || !projectCode || !proposalCode) return
+    setActionLoading(true)
+    setError('')
+    try {
+      await api.post(`/projects/${projectCode}/proposals/${proposalCode}/accept`, { milestone_code: selectedMilestone })
+      setShowAccept(false)
+      fetchProposal()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Accept failed')
+    } finally {
+      setActionLoading(false)
+    }
+  }
+
+  const handleReject = async () => {
+    if (!projectCode || !proposalCode) return
+    const reason = prompt('Reject reason (optional):')
+    setActionLoading(true)
+    setError('')
+    try {
+      await api.post(`/projects/${projectCode}/proposals/${proposalCode}/reject`, { reason: reason || undefined })
+      fetchProposal()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Reject failed')
+    } finally {
+      setActionLoading(false)
+    }
+  }
+
+  const openEditModal = () => {
+    if (!proposal) return
+    setEditTitle(proposal.title)
+    setEditDescription(proposal.description || '')
+    setError('')
+    setShowEdit(true)
+  }
+
+  const handleEdit = async () => {
+    if (!projectCode || !proposalCode) return
+    setEditLoading(true)
+    setError('')
+    try {
+      await api.patch(`/projects/${projectCode}/proposals/${proposalCode}`, {
+        title: editTitle,
+        description: editDescription,
+      })
+      setShowEdit(false)
+      fetchProposal()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Update failed')
+    } finally {
+      setEditLoading(false)
+    }
+  }
+
+  const handleReopen = async () => {
+    if (!projectCode || !proposalCode) return
+    setActionLoading(true)
+    setError('')
+    try {
+      await api.post(`/projects/${projectCode}/proposals/${proposalCode}/reopen`)
+      fetchProposal()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Reopen failed')
+    } finally {
+      setActionLoading(false)
+    }
+  }
+
+  // Essential handlers
+  const openEssentialModal = (essential?: Essential) => {
+    if (essential) {
+      setEditingEssential(essential)
+      setEssentialTitle(essential.title)
+      setEssentialType(essential.type)
+      setEssentialDesc(essential.description || '')
+    } else {
+      setEditingEssential(null)
+      setEssentialTitle('')
+      setEssentialType('feature')
+      setEssentialDesc('')
+    }
+    setError('')
+    setShowEssentialModal(true)
+  }
+
+  const handleSaveEssential = async () => {
+    if (!projectCode || !proposalCode) return
+    setEssentialLoading(true)
+    setError('')
+    try {
+      if (editingEssential) {
+        await api.patch(`/projects/${projectCode}/proposals/${proposalCode}/essentials/${editingEssential.essential_code}`, {
+          title: essentialTitle,
+          type: essentialType,
+          description: essentialDesc || null,
+        })
+      } else {
+        await api.post(`/projects/${projectCode}/proposals/${proposalCode}/essentials`, {
+          title: essentialTitle,
+          type: essentialType,
+          description: essentialDesc || null,
+        })
+      }
+      setShowEssentialModal(false)
+      fetchEssentials()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Save failed')
+    } finally {
+      setEssentialLoading(false)
+    }
+  }
+
+  const handleDeleteEssential = async (essentialCode: string) => {
+    if (!projectCode || !proposalCode) return
+    if (!confirm('Are you sure you want to delete this Essential?')) return
+    setEssentialLoading(true)
+    try {
+      await api.delete(`/projects/${projectCode}/proposals/${proposalCode}/essentials/${essentialCode}`)
+      fetchEssentials()
+    } catch (err: any) {
+      setError(err.response?.data?.detail || 'Delete failed')
+    } finally {
+      setEssentialLoading(false)
+    }
+  }
+
+  if (!proposal) return <div className="loading">Loading...</div>
+
+  const statusBadgeClass = (s: string) => {
+    if (s === 'open') return 'status-open'
+    if (s === 'accepted') return 'status-completed'
+    if (s === 'rejected') return 'status-closed'
+    return ''
+  }
+
+  return (
+    <div className="task-detail">
+      <button className="btn-back" onClick={() => navigate(-1)}>← Back</button>
+
+      <div className="task-header">
+        <h2>
+          💡 {proposal.title}
+          {proposal.proposal_code && <span style={{ marginLeft: 8 }}><CopyableCode code={proposal.proposal_code} /></span>}
+        </h2>
+        <span className={`badge ${statusBadgeClass(proposal.status)}`} style={{ fontSize: '1rem' }}>
+          {proposal.status}
+        </span>
+      </div>
+
+      {error && <div className="error-message" style={{ color: 'var(--danger)', marginBottom: 12 }}>{error}</div>}
+
+      <div className="section">
+        <h3>Details</h3>
+        <div className="detail-grid">
+          <div><strong>Proposal Code:</strong> {proposal.proposal_code ? <CopyableCode code={proposal.proposal_code} /> : '—'}</div>
+          <div><strong>Status:</strong> {proposal.status}</div>
+          <div><strong>Created By:</strong> {proposal.created_by_username || (proposal.created_by_id ? `User #${proposal.created_by_id}` : '—')}</div>
+          <div><strong>Created:</strong> {dayjs(proposal.created_at).format('YYYY-MM-DD HH:mm')}</div>
+          <div><strong>Updated:</strong> {proposal.updated_at ? dayjs(proposal.updated_at).format('YYYY-MM-DD HH:mm') : '—'}</div>
+        </div>
+      </div>
+
+      <div className="section">
+        <h3>Description</h3>
+        <p style={{ whiteSpace: 'pre-wrap' }}>{proposal.description || 'No description'}</p>
+      </div>
+
+      {/* Essentials section */}
+      <div className="section">
+        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 12 }}>
+          <h3>Essentials ({essentials.length})</h3>
+          {proposal.status === 'open' && (
+            <button className="btn-primary" onClick={() => openEssentialModal()}>+ New Essential</button>
+          )}
+        </div>
+        {loadingEssentials ? (
+          <div className="loading">Loading...</div>
+        ) : essentials.length === 0 ? (
+          <div className="empty" style={{ padding: '20px 0', color: 'var(--text-secondary)' }}>
+            No essentials yet. {proposal.status === 'open' ? 'Add one to define deliverables for this proposal.' : ''}
+          </div>
+        ) : (
+          <div className="milestone-grid">
+            {essentials.map((e) => (
+              <div key={e.id} className="milestone-card">
+                <div className="milestone-card-header" style={{ display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                  <span className="badge">{e.type}</span>
+                  {e.essential_code && <span className="badge"><CopyableCode code={e.essential_code} /></span>}
+                  <h4 style={{ margin: 0, flex: 1 }}>{e.title}</h4>
+                  {proposal.status === 'open' && (
+                    <div style={{ display: 'flex', gap: 4 }}>
+                      <button
+                        className="btn-transition"
+                        style={{ padding: '4px 8px', fontSize: '0.8rem' }}
+                        onClick={() => openEssentialModal(e)}
+                      >
+                        Edit
+                      </button>
+                      <button
+                        className="btn-danger"
+                        style={{ padding: '4px 8px', fontSize: '0.8rem' }}
+                        onClick={() => handleDeleteEssential(e.essential_code)}
+                      >
+                        Delete
+                      </button>
+                    </div>
+                  )}
+                </div>
+                {e.description && (
+                  <p style={{ marginTop: 8, color: 'var(--text-secondary)', whiteSpace: 'pre-wrap' }}>{e.description}</p>
+                )}
+              </div>
+            ))}
+          </div>
+        )}
+      </div>
+
+      {/* Generated tasks (shown when accepted) */}
+      {proposal.status === 'accepted' && proposal.generated_tasks && proposal.generated_tasks.length > 0 && (
+        <div className="section">
+          <h3>Generated Tasks</h3>
+          <div className="milestone-grid">
+            {proposal.generated_tasks.map((gt) => (
+              <div
+                key={gt.task_id}
+                className="milestone-card"
+                onClick={() => gt.task_code && navigate(`/tasks/${gt.task_code}`)}
+                style={{ cursor: 'pointer' }}
+              >
+                <div className="milestone-card-header">
+                  <span className="badge">{gt.task_type}/{gt.task_subtype}</span>
+                  {gt.task_code && <span className="badge">{gt.task_code}</span>}
+                  <h3>{gt.title}</h3>
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {/* Action buttons */}
+      <div className="section" style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
+        {proposal.status === 'open' && (
+          <>
+            <button
+              className="btn-transition"
+              onClick={openEditModal}
+            >
+              ✏️ Edit
+            </button>
+            <button
+              className="btn-primary"
+              disabled={actionLoading}
+              onClick={() => { loadMilestones(); setShowAccept(true) }}
+            >
+              ✅ Accept
+            </button>
+            <button
+              className="btn-danger"
+              disabled={actionLoading}
+              onClick={handleReject}
+            >
+              ❌ Reject
+            </button>
+          </>
+        )}
+        {proposal.status === 'rejected' && (
+          <button
+            className="btn-transition"
+            disabled={actionLoading}
+            onClick={handleReopen}
+          >
+            🔄 Reopen
+          </button>
+        )}
+      </div>
+
+      {/* Edit modal */}
+      {showEdit && (
+        <div className="modal-overlay" onClick={() => setShowEdit(false)}>
+          <div className="modal" onClick={(e) => e.stopPropagation()}>
+            <h3>Edit Proposal</h3>
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Title</strong>
+              <input
+                type="text"
+                value={editTitle}
+                onChange={(e) => setEditTitle(e.target.value)}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Description</strong>
+              <textarea
+                value={editDescription}
+                onChange={(e) => setEditDescription(e.target.value)}
+                rows={6}
+                style={{ width: '100%', marginTop: 4 }}
+              />
+            </label>
+            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
+              <button
+                className="btn-primary"
+                onClick={handleEdit}
+                disabled={!editTitle.trim() || editLoading}
+              >
+                {editLoading ? 'Saving...' : 'Save'}
+              </button>
+              <button className="btn-back" onClick={() => setShowEdit(false)}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {/* Accept modal with milestone selector */}
+      {showAccept && (
+        <div className="modal-overlay" onClick={() => setShowAccept(false)}>
+          <div className="modal" onClick={(e) => e.stopPropagation()}>
+            <h3>Accept Proposal</h3>
+            <p>Select an <strong>open</strong> milestone to generate story tasks in:</p>
+            <select
+              value={selectedMilestone}
+              onChange={(e) => setSelectedMilestone(e.target.value)}
+            >
+              <option value="">— Select milestone —</option>
+              {milestones.map((ms) => (
+                <option key={ms.id} value={ms.milestone_code || ''}>{ms.title}</option>
+              ))}
+            </select>
+            {milestones.length === 0 && (
+              <p style={{ color: 'var(--danger)', marginTop: 8 }}>No open milestones available.</p>
+            )}
+            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
+              <button
+                className="btn-primary"
+                onClick={handleAccept}
+                disabled={!selectedMilestone || actionLoading}
+              >
+                {actionLoading ? 'Accepting...' : 'Confirm Accept'}
+              </button>
+              <button className="btn-back" onClick={() => setShowAccept(false)}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      )}
+      {/* Essential create/edit modal */}
+      {showEssentialModal && (
+        <div className="modal-overlay" onClick={() => setShowEssentialModal(false)}>
+          <div className="modal" onClick={(e) => e.stopPropagation()}>
+            <h3>{editingEssential ? 'Edit Essential' : 'New Essential'}</h3>
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Title</strong>
+              <input
+                type="text"
+                value={essentialTitle}
+                onChange={(e) => setEssentialTitle(e.target.value)}
+                style={{ width: '100%', marginTop: 4 }}
+                placeholder="Essential title"
+              />
+            </label>
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Type</strong>
+              <select
+                value={essentialType}
+                onChange={(e) => setEssentialType(e.target.value as EssentialType)}
+                style={{ width: '100%', marginTop: 4 }}
+              >
+                <option value="feature">Feature</option>
+                <option value="improvement">Improvement</option>
+                <option value="refactor">Refactor</option>
+              </select>
+            </label>
+            <label style={{ display: 'block', marginBottom: 8 }}>
+              <strong>Description</strong>
+              <textarea
+                value={essentialDesc}
+                onChange={(e) => setEssentialDesc(e.target.value)}
+                rows={4}
+                style={{ width: '100%', marginTop: 4 }}
+                placeholder="Description (optional)"
+              />
+            </label>
+            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
+              <button
+                className="btn-primary"
+                onClick={handleSaveEssential}
+                disabled={!essentialTitle.trim() || essentialLoading}
+              >
+                {essentialLoading ? 'Saving...' : 'Save'}
+              </button>
+              <button className="btn-back" onClick={() => setShowEssentialModal(false)}>Cancel</button>
+            </div>
+          </div>
+        </div>
+      )}
+    </div>
+  )
+}

src/pages/ProposalsPage.tsx

@@ -1,11 +1,11 @@
 import { useState, useEffect } from 'react'
 import { useNavigate } from 'react-router-dom'
 import api from '@/services/api'
-import type { Propose, Project } from '@/types'
+import type { Proposal, Project } from '@/types'
 import dayjs from 'dayjs'
 
-export default function ProposesPage() {
+export default function ProposalsPage() {
-  const [proposes, setProposes] = useState<Propose[]>([])
+  const [proposals, setProposals] = useState<Proposal[]>([])
   const [projects, setProjects] = useState<Project[]>([])
   const [projectFilter, setProjectFilter] = useState('')
   const [showCreate, setShowCreate] = useState(false)
@@ -14,32 +14,32 @@ export default function ProposesPage() {
   const [creating, setCreating] = useState(false)
   const navigate = useNavigate()
 
-  const fetchProposes = () => {
+  const fetchProposals = () => {
     if (!projectFilter) {
-      setProposes([])
+      setProposals([])
       return
     }
-    api.get<Propose[]>(`/projects/${projectFilter}/proposes`).then(({ data }) => setProposes(data))
+    api.get<Proposal[]>(`/projects/${projectFilter}/proposals`).then(({ data }) => setProposals(data))
   }
 
   useEffect(() => {
     api.get<Project[]>('/projects').then(({ data }) => setProjects(data))
   }, [])
 
-  useEffect(() => { fetchProposes() }, [projectFilter])
+  useEffect(() => { fetchProposals() }, [projectFilter])
 
   const handleCreate = async () => {
     if (!newTitle.trim() || !projectFilter) return
     setCreating(true)
     try {
-      await api.post(`/projects/${projectFilter}/proposes`, {
+      await api.post(`/projects/${projectFilter}/proposals`, {
         title: newTitle.trim(),
         description: newDesc.trim() || null,
       })
       setNewTitle('')
       setNewDesc('')
       setShowCreate(false)
-      fetchProposes()
+      fetchProposals()
     } finally {
       setCreating(false)
     }
@@ -55,45 +55,44 @@ export default function ProposesPage() {
   return (
     <div className="milestones-page">
       <div className="page-header">
-        <h2>💡 Proposes ({proposes.length})</h2>
+        <h2>💡 Proposals ({proposals.length})</h2>
         <button className="btn-primary" disabled={!projectFilter} onClick={() => setShowCreate(true)}>
-          + New Propose
+          + New Proposal
         </button>
       </div>
 
       <div className="filters">
         <select value={projectFilter} onChange={(e) => setProjectFilter(e.target.value)}>
           <option value="">Select a project</option>
-          {projects.map((p) => <option key={p.id} value={p.id}>{p.name}</option>)}
+          {projects.map((p) => <option key={p.id} value={p.project_code || ''}>{p.name}</option>)}
         </select>
       </div>
 
-      {!projectFilter && <p className="empty">Please select a project to view proposes.</p>}
+      {!projectFilter && <p className="empty">Please select a project to view proposals.</p>}
 
       <div className="milestone-grid">
-        {proposes.map((pr) => (
+        {proposals.map((pr) => (
-          <div key={pr.id} className="milestone-card" onClick={() => navigate(`/proposes/${pr.propose_code || pr.id}?project_id=${pr.project_id}`)}>
+          <div key={pr.id} className="milestone-card" onClick={() => pr.proposal_code && pr.project_code && navigate(`/proposals/${pr.proposal_code}?project_code=${pr.project_code}`)}>
             <div className="milestone-card-header">
               <span className={`badge ${statusBadgeClass(pr.status)}`}>{pr.status}</span>
-              {pr.propose_code && <span className="badge">{pr.propose_code}</span>}
+              {pr.proposal_code && <span className="badge">{pr.proposal_code}</span>}
               <h3>{pr.title}</h3>
             </div>
             <p className="project-desc">{pr.description || 'No description'}</p>
             <div className="project-meta">
-              {pr.feat_task_id && <span>Task: {pr.feat_task_id}</span>}
               <span>Created {dayjs(pr.created_at).format('YYYY-MM-DD')}</span>
             </div>
           </div>
         ))}
-        {projectFilter && proposes.length === 0 && <p className="empty">No proposes</p>}
+        {projectFilter && proposals.length === 0 && <p className="empty">No proposals</p>}
       </div>
 
       {showCreate && (
         <div className="modal-overlay" onClick={() => setShowCreate(false)}>
           <div className="modal" onClick={(e) => e.stopPropagation()}>
-            <h3>New Propose</h3>
+            <h3>New Proposal</h3>
             <label>Title</label>
-            <input value={newTitle} onChange={(e) => setNewTitle(e.target.value)} placeholder="Propose title" />
+            <input value={newTitle} onChange={(e) => setNewTitle(e.target.value)} placeholder="Proposal title" />
             <label>Description</label>
             <textarea value={newDesc} onChange={(e) => setNewDesc(e.target.value)} placeholder="Description (optional)" rows={4} />
             <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>

src/pages/ProposeDetailPage.tsx

@@ -1,266 +0,0 @@
-import { useState, useEffect } from 'react'
-import { useParams, useNavigate, useSearchParams } from 'react-router-dom'
-import api from '@/services/api'
-import type { Propose, Milestone } from '@/types'
-import dayjs from 'dayjs'
-import CopyableCode from '@/components/CopyableCode'
-
-export default function ProposeDetailPage() {
-  const { id } = useParams()
-  const [searchParams] = useSearchParams()
-  const projectId = searchParams.get('project_id')
-  const navigate = useNavigate()
-
-  const [propose, setPropose] = useState<Propose | null>(null)
-  const [milestones, setMilestones] = useState<Milestone[]>([])
-  const [showAccept, setShowAccept] = useState(false)
-  const [selectedMilestone, setSelectedMilestone] = useState<number | ''>('')
-  const [actionLoading, setActionLoading] = useState(false)
-  const [error, setError] = useState('')
-
-  // Edit state (P10.7)
-  const [showEdit, setShowEdit] = useState(false)
-  const [editTitle, setEditTitle] = useState('')
-  const [editDescription, setEditDescription] = useState('')
-  const [editLoading, setEditLoading] = useState(false)
-
-  const fetchPropose = () => {
-    if (!projectId) return
-    api.get<Propose>(`/projects/${projectId}/proposes/${id}`).then(({ data }) => setPropose(data))
-  }
-
-  useEffect(() => {
-    fetchPropose()
-  }, [id, projectId])
-
-  const loadMilestones = () => {
-    if (!projectId) return
-    api.get<Milestone[]>(`/milestones?project_id=${projectId}`)
-      .then(({ data }) => setMilestones(data.filter((m) => m.status === 'open')))
-  }
-
-  const handleAccept = async () => {
-    if (!selectedMilestone || !projectId) return
-    setActionLoading(true)
-    setError('')
-    try {
-      await api.post(`/projects/${projectId}/proposes/${id}/accept`, { milestone_id: selectedMilestone })
-      setShowAccept(false)
-      fetchPropose()
-    } catch (err: any) {
-      setError(err.response?.data?.detail || 'Accept failed')
-    } finally {
-      setActionLoading(false)
-    }
-  }
-
-  const handleReject = async () => {
-    if (!projectId) return
-    const reason = prompt('Reject reason (optional):')
-    setActionLoading(true)
-    setError('')
-    try {
-      await api.post(`/projects/${projectId}/proposes/${id}/reject`, { reason: reason || undefined })
-      fetchPropose()
-    } catch (err: any) {
-      setError(err.response?.data?.detail || 'Reject failed')
-    } finally {
-      setActionLoading(false)
-    }
-  }
-
-  const openEditModal = () => {
-    if (!propose) return
-    setEditTitle(propose.title)
-    setEditDescription(propose.description || '')
-    setError('')
-    setShowEdit(true)
-  }
-
-  const handleEdit = async () => {
-    if (!projectId) return
-    setEditLoading(true)
-    setError('')
-    try {
-      await api.patch(`/projects/${projectId}/proposes/${id}`, {
-        title: editTitle,
-        description: editDescription,
-      })
-      setShowEdit(false)
-      fetchPropose()
-    } catch (err: any) {
-      setError(err.response?.data?.detail || 'Update failed')
-    } finally {
-      setEditLoading(false)
-    }
-  }
-
-  const handleReopen = async () => {
-    if (!projectId) return
-    setActionLoading(true)
-    setError('')
-    try {
-      await api.post(`/projects/${projectId}/proposes/${id}/reopen`)
-      fetchPropose()
-    } catch (err: any) {
-      setError(err.response?.data?.detail || 'Reopen failed')
-    } finally {
-      setActionLoading(false)
-    }
-  }
-
-  if (!propose) return <div className="loading">Loading...</div>
-
-  const statusBadgeClass = (s: string) => {
-    if (s === 'open') return 'status-open'
-    if (s === 'accepted') return 'status-completed'
-    if (s === 'rejected') return 'status-closed'
-    return ''
-  }
-
-  return (
-    <div className="task-detail">
-      <button className="btn-back" onClick={() => navigate(-1)}>← Back</button>
-
-      <div className="task-header">
-        <h2>
-          💡 {propose.title}
-          {propose.propose_code && <span style={{ marginLeft: 8 }}><CopyableCode code={propose.propose_code} /></span>}
-        </h2>
-        <span className={`badge ${statusBadgeClass(propose.status)}`} style={{ fontSize: '1rem' }}>
-          {propose.status}
-        </span>
-      </div>
-
-      {error && <div className="error-message" style={{ color: 'var(--danger)', marginBottom: 12 }}>{error}</div>}
-
-      <div className="section">
-        <h3>Details</h3>
-        <div className="detail-grid">
-          <div><strong>Propose Code:</strong> {propose.propose_code ? <CopyableCode code={propose.propose_code} /> : '—'}</div>
-          <div><strong>Status:</strong> {propose.status}</div>
-          <div><strong>Created By:</strong> {propose.created_by_username || (propose.created_by_id ? `User #${propose.created_by_id}` : '—')}</div>
-          <div><strong>Created:</strong> {dayjs(propose.created_at).format('YYYY-MM-DD HH:mm')}</div>
-          <div><strong>Updated:</strong> {propose.updated_at ? dayjs(propose.updated_at).format('YYYY-MM-DD HH:mm') : '—'}</div>
-          <div><strong>Feature Task:</strong> {propose.feat_task_id || '—'}</div>
-        </div>
-      </div>
-
-      <div className="section">
-        <h3>Description</h3>
-        <p style={{ whiteSpace: 'pre-wrap' }}>{propose.description || 'No description'}</p>
-      </div>
-
-      {/* Action buttons */}
-      <div className="section" style={{ display: 'flex', gap: 8, flexWrap: 'wrap' }}>
-        {propose.status === 'open' && (
-          <>
-            <button
-              className="btn-transition"
-              onClick={openEditModal}
-            >
-              ✏️ Edit
-            </button>
-            <button
-              className="btn-primary"
-              disabled={actionLoading}
-              onClick={() => { loadMilestones(); setShowAccept(true) }}
-            >
-              ✅ Accept
-            </button>
-            <button
-              className="btn-danger"
-              disabled={actionLoading}
-              onClick={handleReject}
-            >
-              ❌ Reject
-            </button>
-          </>
-        )}
-        {propose.status === 'accepted' && propose.feat_task_id && (
-          <button className="btn-transition" onClick={() => navigate(`/tasks/${propose.feat_task_id}`)}>
-            📋 View Generated Task
-          </button>
-        )}
-        {propose.status === 'rejected' && (
-          <button
-            className="btn-transition"
-            disabled={actionLoading}
-            onClick={handleReopen}
-          >
-            🔄 Reopen
-          </button>
-        )}
-      </div>
-
-      {/* Edit modal (P10.7 — only reachable when open) */}
-      {showEdit && (
-        <div className="modal-overlay" onClick={() => setShowEdit(false)}>
-          <div className="modal" onClick={(e) => e.stopPropagation()}>
-            <h3>Edit Propose</h3>
-            <label style={{ display: 'block', marginBottom: 8 }}>
-              <strong>Title</strong>
-              <input
-                type="text"
-                value={editTitle}
-                onChange={(e) => setEditTitle(e.target.value)}
-                style={{ width: '100%', marginTop: 4 }}
-              />
-            </label>
-            <label style={{ display: 'block', marginBottom: 8 }}>
-              <strong>Description</strong>
-              <textarea
-                value={editDescription}
-                onChange={(e) => setEditDescription(e.target.value)}
-                rows={6}
-                style={{ width: '100%', marginTop: 4 }}
-              />
-            </label>
-            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
-              <button
-                className="btn-primary"
-                onClick={handleEdit}
-                disabled={!editTitle.trim() || editLoading}
-              >
-                {editLoading ? 'Saving...' : 'Save'}
-              </button>
-              <button className="btn-back" onClick={() => setShowEdit(false)}>Cancel</button>
-            </div>
-          </div>
-        </div>
-      )}
-
-      {/* Accept modal with milestone selector */}
-      {showAccept && (
-        <div className="modal-overlay" onClick={() => setShowAccept(false)}>
-          <div className="modal" onClick={(e) => e.stopPropagation()}>
-            <h3>Accept Propose</h3>
-            <p>Select an <strong>open</strong> milestone to create a feature story task in:</p>
-            <select
-              value={selectedMilestone}
-              onChange={(e) => setSelectedMilestone(Number(e.target.value))}
-            >
-              <option value="">— Select milestone —</option>
-              {milestones.map((ms) => (
-                <option key={ms.id} value={ms.id}>{ms.title}</option>
-              ))}
-            </select>
-            {milestones.length === 0 && (
-              <p style={{ color: 'var(--danger)', marginTop: 8 }}>No open milestones available.</p>
-            )}
-            <div style={{ marginTop: 12, display: 'flex', gap: 8 }}>
-              <button
-                className="btn-primary"
-                onClick={handleAccept}
-                disabled={!selectedMilestone || actionLoading}
-              >
-                {actionLoading ? 'Accepting...' : 'Confirm Accept'}
-              </button>
-              <button className="btn-back" onClick={() => setShowAccept(false)}>Cancel</button>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  )
-}

src/pages/SupportDetailPage.tsx

@@ -27,7 +27,7 @@ const STATUS_OPTIONS = ['open', 'in_progress', 'resolved', 'closed']
 const PRIORITY_OPTIONS = ['low', 'medium', 'high', 'critical']
 
 export default function SupportDetailPage() {
-  const { supportId } = useParams()
+  const { supportCode } = useParams()
   const navigate = useNavigate()
   const { user } = useAuth()
   const [support, setSupport] = useState<SupportItem | null>(null)
@@ -40,7 +40,7 @@ export default function SupportDetailPage() {
 
   const fetchSupport = async () => {
     try {
-      const { data } = await api.get<SupportItem>(`/supports/${supportId}`)
+      const { data } = await api.get<SupportItem>(`/supports/${supportCode}`)
       setSupport(data)
       setEditForm({
         title: data.title,
@@ -56,14 +56,14 @@ export default function SupportDetailPage() {
 
   useEffect(() => {
     fetchSupport()
-  }, [supportId])
+  }, [supportCode])
 
   const handleTake = async () => {
     if (!support) return
     setSaving(true)
     setMessage('')
     try {
-      const { data } = await api.post<SupportItem>(`/supports/${supportId}/take`)
+      const { data } = await api.post<SupportItem>(`/supports/${supportCode}/take`)
       setSupport(data)
       setMessage('You have taken this support ticket')
     } catch (err: any) {
@@ -78,7 +78,7 @@ export default function SupportDetailPage() {
     setSaving(true)
     setMessage('')
     try {
-      const { data } = await api.post<SupportItem>(`/supports/${supportId}/transition`, {
+      const { data } = await api.post<SupportItem>(`/supports/${supportCode}/transition`, {
         status: transitionStatus,
       })
       setSupport(data)
@@ -106,7 +106,7 @@ export default function SupportDetailPage() {
         return
       }
 
-      const { data } = await api.patch<SupportItem>(`/supports/${supportId}`, payload)
+      const { data } = await api.patch<SupportItem>(`/supports/${supportCode}`, payload)
       setSupport(data)
       setEditMode(false)
       setMessage('Support ticket updated')
@@ -122,7 +122,7 @@ export default function SupportDetailPage() {
     if (!confirm(`Delete support ticket ${support.support_code || support.id}? This cannot be undone.`)) return
     setSaving(true)
     try {
-      await api.delete(`/supports/${supportId}`)
+      await api.delete(`/supports/${supportCode}`)
       navigate(-1)
     } catch (err: any) {
       setMessage(err.response?.data?.detail || 'Failed to delete support ticket')

src/pages/TaskDetailPage.tsx

@@ -8,7 +8,7 @@ import CreateTaskModal from '@/components/CreateTaskModal'
 import CopyableCode from '@/components/CopyableCode'
 
 export default function TaskDetailPage() {
-  const { id } = useParams()
+  const { taskCode } = useParams()
   const navigate = useNavigate()
   const { user } = useAuth()
   const [task, setTask] = useState<Task | null>(null)
@@ -26,27 +26,30 @@ export default function TaskDetailPage() {
   const [closeReason, setCloseReason] = useState('')
 
   const refreshTask = async () => {
-    const { data } = await api.get<Task>(`/tasks/${id}`)
+    if (!taskCode) return
+    const { data } = await api.get<Task>(`/tasks/${taskCode}`)
     setTask(data)
     if (data.project_id) {
       api.get<Project>(`/projects/${data.project_id}`).then(({ data }) => setProject(data)).catch(() => {})
       api.get<ProjectMember[]>(`/projects/${data.project_id}/members`).then(({ data }) => setMembers(data)).catch(() => {})
     }
-    if (data.milestone_id) {
+    if (data.milestone_code) {
-      api.get<Milestone>(`/milestones/${data.milestone_id}`).then(({ data }) => setMilestone(data)).catch(() => {})
+      api.get<Milestone>(`/milestones/${data.milestone_code}`).then(({ data }) => setMilestone(data)).catch(() => {})
     }
   }
 
   useEffect(() => {
     refreshTask().catch(console.error)
-    api.get<Comment[]>(`/tasks/${id}/comments`).then(({ data }) => setComments(data))
+    if (taskCode) {
-  }, [id])
+      api.get<Comment[]>(`/tasks/${taskCode}/comments`).then(({ data }) => setComments(data))
+    }
+  }, [taskCode])
 
   const addComment = async () => {
     if (!newComment.trim() || !task) return
     await api.post('/comments', { content: newComment, task_id: task.id, author_id: 1 })
     setNewComment('')
-    const { data } = await api.get<Comment[]>(`/tasks/${id}/comments`)
+    const { data } = await api.get<Comment[]>(`/tasks/${taskCode}/comments`)
     setComments(data)
   }
 
@@ -54,10 +57,10 @@ export default function TaskDetailPage() {
     setActionLoading(actionName)
     setActionError(null)
     try {
-      await api.post(`/tasks/${id}/transition?new_status=${newStatus}`, body || {})
+      await api.post(`/tasks/${taskCode}/transition?new_status=${newStatus}`, body || {})
       await refreshTask()
       // refresh comments too (finish adds one via backend)
-      const { data } = await api.get<Comment[]>(`/tasks/${id}/comments`)
+      const { data } = await api.get<Comment[]>(`/tasks/${taskCode}/comments`)
       setComments(data)
     } catch (err: any) {
       setActionError(err?.response?.data?.detail || err?.message || 'Action failed')

src/pages/TasksPage.tsx

@@ -64,8 +64,8 @@ export default function TasksPage() {
         </thead>
         <tbody>
           {tasks.map((t) => (
-            <tr key={t.id} onClick={() => navigate(`/tasks/${t.task_code || t.id}`)} className="clickable">
+            <tr key={t.id} onClick={() => t.task_code && navigate(`/tasks/${t.task_code}`)} className={t.task_code ? 'clickable' : ''}>
-              <td>{t.task_code || t.id}</td>
+              <td>{t.task_code || '—'}</td>
               <td className="task-title">{t.title}</td>
               <td><span className="badge" style={{ backgroundColor: statusColors[t.status] || '#ccc' }}>{t.status}</span></td>
               <td><span className={`badge priority-${t.priority}`}>{t.priority}</span></td>

src/test/calendar.test.tsx

@@ -0,0 +1,317 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
+import { render, screen, waitFor, fireEvent, cleanup } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import CalendarPage from '@/pages/CalendarPage'
+
+const mockGet = vi.fn()
+const mockPost = vi.fn()
+
+vi.mock('@/services/api', () => ({
+  default: {
+    get: (...args: any[]) => mockGet(...args),
+    post: (...args: any[]) => mockPost(...args),
+  },
+}))
+
+type Slot = {
+  slot_id: string
+  date: string
+  slot_type: 'work' | 'on_call' | 'entertainment' | 'system'
+  estimated_duration: number
+  scheduled_at: string
+  started_at: string | null
+  attended: boolean
+  actual_duration: number | null
+  event_type: 'job' | 'entertainment' | 'system_event' | null
+  event_data: Record<string, any> | null
+  priority: number
+  status: 'not_started' | 'ongoing' | 'deferred' | 'skipped' | 'paused' | 'finished' | 'aborted'
+  plan_id: number | null
+  is_virtual: boolean
+  created_at: string | null
+  updated_at: string | null
+}
+
+type Plan = {
+  id: number
+  slot_type: 'work' | 'on_call' | 'entertainment' | 'system'
+  estimated_duration: number
+  event_type: string | null
+  event_data: Record<string, any> | null
+  at_time: string
+  on_day: string | null
+  on_week: number | null
+  on_month: string | null
+  is_active: boolean
+  created_at: string
+  updated_at: string | null
+}
+
+const slots: Slot[] = [
+  {
+    slot_id: '1',
+    date: '2026-04-01',
+    slot_type: 'work',
+    estimated_duration: 25,
+    scheduled_at: '09:00',
+    started_at: null,
+    attended: false,
+    actual_duration: null,
+    event_type: 'job',
+    event_data: { type: 'Task', code: 'TASK-1' },
+    priority: 50,
+    status: 'not_started',
+    plan_id: null,
+    is_virtual: false,
+    created_at: '2026-04-01T00:00:00Z',
+    updated_at: '2026-04-01T00:00:00Z',
+  },
+  {
+    slot_id: 'plan-5-2026-04-01',
+    date: '2026-04-01',
+    slot_type: 'on_call',
+    estimated_duration: 30,
+    scheduled_at: '14:00',
+    started_at: null,
+    attended: false,
+    actual_duration: null,
+    event_type: null,
+    event_data: null,
+    priority: 70,
+    status: 'deferred',
+    plan_id: 5,
+    is_virtual: true,
+    created_at: null,
+    updated_at: null,
+  },
+]
+
+const plans: Plan[] = [
+  {
+    id: 5,
+    slot_type: 'on_call',
+    estimated_duration: 30,
+    event_type: null,
+    event_data: null,
+    at_time: '14:00',
+    on_day: 'Mon',
+    on_week: null,
+    on_month: null,
+    is_active: true,
+    created_at: '2026-03-01T00:00:00Z',
+    updated_at: null,
+  },
+  {
+    id: 6,
+    slot_type: 'work',
+    estimated_duration: 50,
+    event_type: 'system_event',
+    event_data: { event: 'ScheduleToday' },
+    at_time: '08:00',
+    on_day: 'Tue',
+    on_week: 1,
+    on_month: null,
+    is_active: false,
+    created_at: '2026-03-01T00:00:00Z',
+    updated_at: null,
+  },
+]
+
+function setupApi(options?: {
+  slots?: Slot[]
+  plans?: Plan[]
+  dayError?: string
+  postImpl?: (url: string, payload?: any) => any
+}) {
+  const currentSlots = options?.slots ?? slots
+  const currentPlans = options?.plans ?? plans
+
+  mockGet.mockImplementation((url: string) => {
+    if (url.startsWith('/calendar/day')) {
+      if (options?.dayError) {
+        return Promise.reject({ response: { data: { detail: options.dayError } } })
+      }
+      return Promise.resolve({ data: currentSlots })
+    }
+    if (url === '/calendar/plans') {
+      return Promise.resolve({ data: currentPlans })
+    }
+    return Promise.reject(new Error(`Unhandled GET ${url}`))
+  })
+
+  mockPost.mockImplementation((url: string, payload?: any) => {
+    if (options?.postImpl) return options.postImpl(url, payload)
+    return Promise.resolve({ data: {} })
+  })
+}
+
+describe('CalendarPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    setupApi()
+    vi.spyOn(window, 'confirm').mockReturnValue(true)
+  })
+
+  afterEach(() => {
+    cleanup()
+    vi.restoreAllMocks()
+  })
+
+  it('renders daily slots, deferred notice, and virtual-plan badge', async () => {
+    render(<CalendarPage />)
+
+    expect(await screen.findByText('09:00')).toBeInTheDocument()
+    expect(screen.getByText('14:00')).toBeInTheDocument()
+    expect(screen.getAllByText(/deferred/i).length).toBeGreaterThan(0)
+    expect(screen.getByText(/agent unavailability/i)).toBeInTheDocument()
+    expect(screen.getByText(/TASK-1/i)).toBeInTheDocument()
+    expect(screen.getByText(/^plan$/i)).toBeInTheDocument()
+    expect(screen.getByText(/Priority: 50/i)).toBeInTheDocument()
+  })
+
+  it('renders plans tab content', async () => {
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getByRole('button', { name: /Plans \(2\)/i }))
+
+    expect(await screen.findByText(/Plan #5/i)).toBeInTheDocument()
+    expect(screen.getByText(/Plan #6/i)).toBeInTheDocument()
+    expect(screen.getByText(/at 14:00 · on Mon/i)).toBeInTheDocument()
+    expect(screen.getByText(/inactive/i)).toBeInTheDocument()
+  })
+
+  it('opens create modal and toggles event-specific fields', async () => {
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getByRole('button', { name: /\+ New Slot/i }))
+
+    expect(screen.getByRole('heading', { name: /New Slot/i })).toBeInTheDocument()
+
+    const selects = screen.getAllByRole('combobox')
+    const eventTypeSelect = selects[1]
+
+    fireEvent.change(eventTypeSelect, { target: { value: 'job' } })
+    expect(screen.getByLabelText(/Job Code/i)).toBeInTheDocument()
+
+    fireEvent.change(eventTypeSelect, { target: { value: 'system_event' } })
+    expect(screen.getByLabelText(/System Event/i)).toBeInTheDocument()
+  })
+
+  it('submits new slot and displays workload warnings', async () => {
+    setupApi({
+      postImpl: (url: string) => {
+        if (url === '/calendar/schedule') {
+          return Promise.resolve({
+            data: {
+              slot: slots[0],
+              warnings: [
+                {
+                  period: 'daily',
+                  slot_type: 'work',
+                  current: 25,
+                  minimum: 120,
+                  message: 'Daily work minimum not met',
+                },
+              ],
+            },
+          })
+        }
+        return Promise.resolve({ data: {} })
+      },
+    })
+
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getByRole('button', { name: /\+ New Slot/i }))
+    await userEvent.click(screen.getByRole('button', { name: /^Save$/i }))
+
+    await waitFor(() => {
+      expect(mockPost).toHaveBeenCalledWith(
+        '/calendar/schedule',
+        expect.objectContaining({
+          slot_type: 'work',
+          scheduled_at: '09:00',
+          estimated_duration: 25,
+          priority: 50,
+          date: '2026-04-01',
+        }),
+      )
+    })
+
+    expect(await screen.findByText(/Workload Warnings/i)).toBeInTheDocument()
+    expect(screen.getByText(/Daily work minimum not met/i)).toBeInTheDocument()
+  })
+
+  it('shows overlap error when save fails with overlap detail', async () => {
+    setupApi({
+      postImpl: (url: string) => {
+        if (url === '/calendar/schedule') {
+          return Promise.reject({
+            response: { data: { detail: 'Slot overlap with existing slot at 09:00' } },
+          })
+        }
+        return Promise.resolve({ data: {} })
+      },
+    })
+
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getByRole('button', { name: /\+ New Slot/i }))
+    await userEvent.click(screen.getByRole('button', { name: /^Save$/i }))
+
+    expect(await screen.findByText(/Overlap conflict/i)).toBeInTheDocument()
+  })
+
+  it('opens edit modal with existing slot values and submits edit request', async () => {
+    setupApi({
+      postImpl: (url: string) => {
+        if (url.startsWith('/calendar/edit')) {
+          return Promise.resolve({ data: { slot: slots[0], warnings: [] } })
+        }
+        return Promise.resolve({ data: {} })
+      },
+    })
+
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getAllByRole('button', { name: /✏️ Edit/i })[0])
+
+    expect(screen.getByRole('heading', { name: /Edit Slot/i })).toBeInTheDocument()
+    expect((screen.getAllByRole('combobox')[0] as HTMLSelectElement).value).toBe('work')
+    expect((document.querySelector('input[type="time"]') as HTMLInputElement).value).toBe('09:00')
+
+    await userEvent.click(screen.getByRole('button', { name: /^Save$/i }))
+
+    await waitFor(() => {
+      expect(mockPost).toHaveBeenCalledWith(
+        expect.stringContaining('/calendar/edit?date=2026-04-01&slot_id=1'),
+        expect.objectContaining({ slot_type: 'work' }),
+      )
+    })
+  })
+
+  it('cancels a slot after confirmation', async () => {
+    render(<CalendarPage />)
+
+    await screen.findByText('09:00')
+    await userEvent.click(screen.getAllByRole('button', { name: /❌ Cancel/i })[0])
+
+    await waitFor(() => {
+      expect(window.confirm).toHaveBeenCalled()
+      expect(mockPost).toHaveBeenCalledWith('/calendar/cancel?date=2026-04-01&slot_id=1')
+    })
+  })
+
+  it('shows fetch error banner when day loading fails', async () => {
+    setupApi({ dayError: 'Failed to load calendar' })
+
+    render(<CalendarPage />)
+
+    expect(await screen.findByText(/Failed to load calendar/i)).toBeInTheDocument()
+  })
+})

src/test/proposal-essential.test.tsx

@@ -0,0 +1,525 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
+import { render, screen, waitFor, fireEvent, cleanup } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import ProposalDetailPage from '@/pages/ProposalDetailPage'
+import { MemoryRouter, Routes, Route } from 'react-router-dom'
+
+const mockGet = vi.fn()
+const mockPost = vi.fn()
+const mockPatch = vi.fn()
+const mockDelete = vi.fn()
+
+vi.mock('@/services/api', () => ({
+  default: {
+    get: (...args: any[]) => mockGet(...args),
+    post: (...args: any[]) => mockPost(...args),
+    patch: (...args: any[]) => mockPatch(...args),
+    delete: (...args: any[]) => mockDelete(...args),
+  },
+}))
+
+const mockNavigate = vi.fn()
+vi.mock('react-router-dom', async () => {
+  const actual = await vi.importActual('react-router-dom')
+  return {
+    ...actual,
+    useNavigate: () => mockNavigate,
+    useParams: () => ({ id: '1' }),
+    useSearchParams: () => [new URLSearchParams('?project_id=1'), vi.fn()],
+  }
+})
+
+type Essential = {
+  id: number
+  essential_code: string
+  proposal_id: number
+  type: 'feature' | 'improvement' | 'refactor'
+  title: string
+  description: string | null
+  created_by_id: number | null
+  created_at: string
+  updated_at: string | null
+}
+
+type Proposal = {
+  id: number
+  proposal_code: string | null
+  title: string
+  description: string | null
+  status: 'open' | 'accepted' | 'rejected'
+  project_id: number
+  created_by_id: number | null
+  created_by_username: string | null
+  feat_task_id: string | null
+  essentials: Essential[] | null
+  generated_tasks: any[] | null
+  created_at: string
+  updated_at: string | null
+}
+
+type Milestone = {
+  id: number
+  title: string
+  status: 'open' | 'freeze' | 'undergoing' | 'completed' | 'closed'
+}
+
+const mockProposal: Proposal = {
+  id: 1,
+  proposal_code: 'PROP-001',
+  title: 'Test Proposal',
+  description: 'Test description',
+  status: 'open',
+  project_id: 1,
+  created_by_id: 1,
+  created_by_username: 'admin',
+  feat_task_id: null,
+  essentials: [],
+  generated_tasks: null,
+  created_at: '2026-03-01T00:00:00Z',
+  updated_at: null,
+}
+
+const mockEssentials: Essential[] = [
+  {
+    id: 1,
+    essential_code: 'ESS-001',
+    proposal_id: 1,
+    type: 'feature',
+    title: 'Feature Essential',
+    description: 'A feature essential',
+    created_by_id: 1,
+    created_at: '2026-03-01T00:00:00Z',
+    updated_at: null,
+  },
+  {
+    id: 2,
+    essential_code: 'ESS-002',
+    proposal_id: 1,
+    type: 'improvement',
+    title: 'Improvement Essential',
+    description: null,
+    created_by_id: 1,
+    created_at: '2026-03-01T00:00:00Z',
+    updated_at: null,
+  },
+]
+
+const mockMilestones: Milestone[] = [
+  { id: 1, title: 'Milestone 1', status: 'open' },
+  { id: 2, title: 'Milestone 2', status: 'open' },
+]
+
+function setupApi(options?: {
+  proposal?: Proposal
+  essentials?: Essential[]
+  milestones?: Milestone[]
+  error?: string
+}) {
+  const proposal = options?.proposal ?? mockProposal
+  const essentials = options?.essentials ?? mockEssentials
+  const milestones = options?.milestones ?? mockMilestones
+
+  mockGet.mockImplementation((url: string) => {
+    if (url.includes('/proposals/1') && !url.includes('/essentials')) {
+      if (options?.error) {
+        return Promise.reject({ response: { data: { detail: options.error } } })
+      }
+      return Promise.resolve({ data: proposal })
+    }
+    if (url.includes('/essentials')) {
+      return Promise.resolve({ data: essentials })
+    }
+    if (url.includes('/milestones')) {
+      return Promise.resolve({ data: milestones })
+    }
+    return Promise.reject(new Error(`Unhandled GET ${url}`))
+  })
+
+  mockPost.mockResolvedValue({ data: {} })
+  mockPatch.mockResolvedValue({ data: {} })
+  mockDelete.mockResolvedValue({ data: {} })
+}
+
+describe('ProposalDetailPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    setupApi()
+    vi.spyOn(window, 'confirm').mockReturnValue(true)
+  })
+
+  afterEach(() => {
+    cleanup()
+    vi.restoreAllMocks()
+  })
+
+  describe('Essential List Display', () => {
+    it('renders essentials section with count', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Essentials (2)')).toBeInTheDocument()
+      })
+    })
+
+    it('displays essential cards with type badges', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Feature Essential')).toBeInTheDocument()
+      })
+
+      expect(screen.getByText('Improvement Essential')).toBeInTheDocument()
+      expect(screen.getByText('feature')).toBeInTheDocument()
+      expect(screen.getByText('improvement')).toBeInTheDocument()
+    })
+
+    it('displays essential codes', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('ESS-001')).toBeInTheDocument()
+      })
+
+      expect(screen.getByText('ESS-002')).toBeInTheDocument()
+    })
+
+    it('displays essential descriptions when available', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('A feature essential')).toBeInTheDocument()
+      })
+    })
+
+    it('shows empty state when no essentials', async () => {
+      setupApi({ essentials: [] })
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Essentials (0)')).toBeInTheDocument()
+      })
+
+      expect(screen.getByText(/No essentials yet/)).toBeInTheDocument()
+      expect(screen.getByText(/Add one to define deliverables/)).toBeInTheDocument()
+    })
+
+    it('shows loading state for essentials', async () => {
+      mockGet.mockImplementation((url: string) => {
+        if (url.includes('/proposals/1') && !url.includes('/essentials')) {
+          return Promise.resolve({ data: mockProposal })
+        }
+        if (url.includes('/essentials')) {
+          return new Promise(() => {}) // Never resolve
+        }
+        return Promise.reject(new Error(`Unhandled GET ${url}`))
+      })
+
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText(/Loading/i)).toBeInTheDocument()
+      })
+    })
+  })
+
+  describe('Essential Create/Edit Forms', () => {
+    it('opens create essential modal', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('+ New Essential')).toBeInTheDocument()
+      })
+
+      await userEvent.click(screen.getByText('+ New Essential'))
+
+      expect(screen.getByRole('heading', { name: 'New Essential' })).toBeInTheDocument()
+      expect(screen.getByPlaceholderText('Essential title')).toBeInTheDocument()
+      expect(screen.getByText('Feature')).toBeInTheDocument()
+      expect(screen.getByText('Improvement')).toBeInTheDocument()
+      expect(screen.getByText('Refactor')).toBeInTheDocument()
+    })
+
+    it('creates new essential', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('+ New Essential')).toBeInTheDocument()
+      })
+
+      await userEvent.click(screen.getByText('+ New Essential'))
+
+      await userEvent.type(screen.getByPlaceholderText('Essential title'), 'New Test Essential')
+      fireEvent.change(screen.getAllByRole('combobox')[0], { target: { value: 'refactor' } })
+      await userEvent.type(screen.getByPlaceholderText('Description (optional)'), 'Test description')
+
+      await userEvent.click(screen.getByRole('button', { name: 'Save' }))
+
+      await waitFor(() => {
+        expect(mockPost).toHaveBeenCalledWith(
+          '/projects/1/proposals/1/essentials',
+          expect.objectContaining({
+            title: 'New Test Essential',
+            type: 'refactor',
+            description: 'Test description',
+          })
+        )
+      })
+    })
+
+    it('opens edit essential modal with pre-filled data', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Feature Essential')).toBeInTheDocument()
+      })
+
+      const editButtons = screen.getAllByRole('button', { name: 'Edit' })
+      await userEvent.click(editButtons[0])
+
+      expect(screen.getByRole('heading', { name: 'Edit Essential' })).toBeInTheDocument()
+
+      const titleInput = screen.getByDisplayValue('Feature Essential')
+      expect(titleInput).toBeInTheDocument()
+
+      const descriptionInput = screen.getByDisplayValue('A feature essential')
+      expect(descriptionInput).toBeInTheDocument()
+    })
+
+    it('updates essential', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Feature Essential')).toBeInTheDocument()
+      })
+
+      const editButtons = screen.getAllByRole('button', { name: 'Edit' })
+      await userEvent.click(editButtons[0])
+
+      const titleInput = screen.getByDisplayValue('Feature Essential')
+      await userEvent.clear(titleInput)
+      await userEvent.type(titleInput, 'Updated Essential Title')
+
+      await userEvent.click(screen.getByRole('button', { name: 'Save' }))
+
+      await waitFor(() => {
+        expect(mockPatch).toHaveBeenCalledWith(
+          '/projects/1/proposals/1/essentials/1',
+          expect.objectContaining({
+            title: 'Updated Essential Title',
+            type: 'feature',
+            description: 'A feature essential',
+          })
+        )
+      })
+    })
+
+    it('deletes essential after confirmation', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Feature Essential')).toBeInTheDocument()
+      })
+
+      const deleteButtons = screen.getAllByRole('button', { name: 'Delete' })
+      await userEvent.click(deleteButtons[0])
+
+      await waitFor(() => {
+        expect(window.confirm).toHaveBeenCalledWith('Are you sure you want to delete this Essential?')
+      })
+
+      await waitFor(() => {
+        expect(mockDelete).toHaveBeenCalledWith('/projects/1/proposals/1/essentials/1')
+      })
+    })
+
+    it('disables save button when title is empty', async () => {
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('+ New Essential')).toBeInTheDocument()
+      })
+
+      await userEvent.click(screen.getByText('+ New Essential'))
+
+      const saveButton = screen.getByRole('button', { name: 'Save' })
+      expect(saveButton).toBeDisabled()
+
+      await userEvent.type(screen.getByPlaceholderText('Essential title'), 'Some Title')
+      expect(saveButton).toBeEnabled()
+
+      await userEvent.clear(screen.getByPlaceholderText('Essential title'))
+      expect(saveButton).toBeDisabled()
+    })
+  })
+
+  describe('Accept with Milestone Selection', () => {
+    it('opens accept modal with milestone selector', async () => {
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+
+      expect(screen.getByRole('heading', { name: 'Accept Proposal' })).toBeInTheDocument()
+      expect(screen.getByText(/milestone to generate story tasks/i)).toBeInTheDocument()
+      expect(screen.getByRole('combobox')).toBeInTheDocument()
+    })
+
+    it('disables confirm button without milestone selection', async () => {
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+
+      const confirmButton = screen.getByRole('button', { name: 'Confirm Accept' })
+      expect(confirmButton).toBeDisabled()
+    })
+
+    it('enables confirm button after milestone selection', async () => {
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+
+      const select = screen.getByRole('combobox')
+      fireEvent.change(select, { target: { value: '1' } })
+
+      const confirmButton = screen.getByRole('button', { name: 'Confirm Accept' })
+      expect(confirmButton).toBeEnabled()
+    })
+
+    it('calls accept API with selected milestone', async () => {
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+
+      const select = screen.getByRole('combobox')
+      fireEvent.change(select, { target: { value: '1' } })
+
+      await userEvent.click(screen.getByRole('button', { name: 'Confirm Accept' }))
+
+      await waitFor(() => {
+        expect(mockPost).toHaveBeenCalledWith(
+          '/projects/1/proposals/1/accept',
+          { milestone_id: 1 }
+        )
+      })
+    })
+
+    it('shows warning when no open milestones available', async () => {
+      setupApi({ milestones: [] })
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+
+      expect(screen.getByText('No open milestones available.')).toBeInTheDocument()
+    })
+
+    it('displays generated tasks after accept', async () => {
+      const acceptedProposal: Proposal = {
+        ...mockProposal,
+        status: 'accepted',
+        generated_tasks: [
+          { task_id: 1, task_code: 'TASK-001', title: 'Story Task 1', task_type: 'story', task_subtype: 'feature' },
+          { task_id: 2, task_code: 'TASK-002', title: 'Story Task 2', task_type: 'story', task_subtype: 'improvement' },
+        ],
+      }
+      setupApi({ proposal: acceptedProposal })
+
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Generated Tasks')).toBeInTheDocument()
+      })
+
+      expect(screen.getByText('Story Task 1')).toBeInTheDocument()
+      expect(screen.getByText('Story Task 2')).toBeInTheDocument()
+      expect(screen.getByText('story/feature')).toBeInTheDocument()
+      expect(screen.getByText('story/improvement')).toBeInTheDocument()
+    })
+  })
+
+  describe('Story Creation Restriction UI', () => {
+    it('hides essential controls for accepted proposal', async () => {
+      const acceptedProposal: Proposal = {
+        ...mockProposal,
+        status: 'accepted',
+        essentials: mockEssentials,
+      }
+      setupApi({ proposal: acceptedProposal })
+
+      render(<ProposalDetailPage />)
+
+      await screen.findByText('Feature Essential')
+      expect(screen.queryByText('+ New Essential')).not.toBeInTheDocument()
+    })
+
+    it('hides edit/delete buttons for essentials when proposal is accepted', async () => {
+      const acceptedProposal: Proposal = {
+        ...mockProposal,
+        status: 'accepted',
+        essentials: mockEssentials,
+      }
+      setupApi({ proposal: acceptedProposal })
+
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('Feature Essential')).toBeInTheDocument()
+      })
+
+      const deleteButtons = screen.queryAllByRole('button', { name: 'Delete' })
+      expect(deleteButtons.length).toBe(0)
+    })
+
+    it('hides edit/delete buttons for rejected proposal', async () => {
+      const rejectedProposal: Proposal = {
+        ...mockProposal,
+        status: 'rejected',
+        essentials: mockEssentials,
+      }
+      setupApi({ proposal: rejectedProposal })
+
+      render(<ProposalDetailPage />)
+
+      await screen.findByRole('button', { name: /reopen/i })
+      expect(screen.queryByText('+ New Essential')).not.toBeInTheDocument()
+    })
+  })
+
+  describe('Error Handling', () => {
+    it('displays error message on essential create failure', async () => {
+      mockPost.mockRejectedValue({ response: { data: { detail: 'Failed to create essential' } } })
+
+      render(<ProposalDetailPage />)
+
+      await waitFor(() => {
+        expect(screen.getByText('+ New Essential')).toBeInTheDocument()
+      })
+
+      await userEvent.click(screen.getByText('+ New Essential'))
+      await userEvent.type(screen.getByPlaceholderText('Essential title'), 'Test')
+      await userEvent.click(screen.getByRole('button', { name: 'Save' }))
+
+      await waitFor(() => {
+        expect(screen.getByText('Failed to create essential')).toBeInTheDocument()
+      })
+    })
+
+    it('displays error message on accept failure', async () => {
+      mockPost.mockRejectedValue({ response: { data: { detail: 'Accept failed: milestone required' } } })
+
+      render(<ProposalDetailPage />)
+
+      const acceptButton = await screen.findByRole('button', { name: /accept/i })
+      await userEvent.click(acceptButton)
+      fireEvent.change(screen.getByRole('combobox'), { target: { value: '1' } })
+      await userEvent.click(screen.getByRole('button', { name: 'Confirm Accept' }))
+
+      await waitFor(() => {
+        expect(screen.getByText('Accept failed: milestone required')).toBeInTheDocument()
+      })
+    })
+  })
+})

src/test/setup.ts

@@ -0,0 +1,58 @@
+import '@testing-library/jest-dom'
+import { vi } from 'vitest'
+
+// Mock localStorage
+const localStorageMock = {
+  getItem: vi.fn((key: string) => {
+    if (key === 'token') return 'mock-token'
+    if (key === 'HF_BACKEND_BASE_URL') return 'http://localhost:8000'
+    return null
+  }),
+  setItem: vi.fn(),
+  removeItem: vi.fn(),
+  clear: vi.fn(),
+}
+vi.stubGlobal('localStorage', localStorageMock)
+
+// Mock window.location
+Object.defineProperty(window, 'location', {
+  configurable: true,
+  value: Object.defineProperties({}, {
+  pathname: { value: '/calendar', writable: true },
+  href: { value: 'http://localhost/calendar', writable: true },
+  assign: { value: vi.fn(), writable: true },
+  replace: { value: vi.fn(), writable: true },
+  }) as any,
+})
+
+// Mock matchMedia
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation((query: string) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(),
+    removeListener: vi.fn(),
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+})
+
+// Mock ResizeObserver
+class ResizeObserverMock {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+vi.stubGlobal('ResizeObserver', ResizeObserverMock)
+
+// Mock IntersectionObserver
+class IntersectionObserverMock {
+  constructor() {}
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+vi.stubGlobal('IntersectionObserver', IntersectionObserverMock)

src/types/index.ts

@@ -36,6 +36,8 @@ export interface ProjectMember {
 export interface Task {
   id: number
   task_code: string | null
+  project_code?: string | null
+  milestone_code?: string | null
   title: string
   description: string | null
   task_type: 'issue' | 'maintenance' | 'research' | 'review' | 'story' | 'test' | 'resolution'  // P7.1: 'task' removed
@@ -69,6 +71,7 @@ export interface Comment {
 export interface Milestone {
   id: number
   milestone_code: string | null
+  project_code?: string | null
   title: string
   description: string | null
   status: 'open' | 'freeze' | 'undergoing' | 'completed' | 'closed'
@@ -106,6 +109,7 @@ export interface Notification {
   message: string
   is_read: boolean
   task_id: number | null
+  task_code?: string | null
   created_at: string
 }
 
@@ -127,16 +131,44 @@ export interface DashboardStats {
   recent_tasks: Task[]
 }
 
-export interface Propose {
+export interface Proposal {
   id: number
-  propose_code: string | null
+  proposal_code: string | null
   title: string
   description: string | null
   status: 'open' | 'accepted' | 'rejected'
   project_id: number
+  project_code?: string | null
   created_by_id: number | null
   created_by_username: string | null
   feat_task_id: string | null
+  essentials: Essential[] | null
+  generated_tasks: GeneratedTask[] | null
+  created_at: string
+  updated_at: string | null
+}
+
+/** @deprecated Use Proposal instead */
+export type Propose = Proposal
+
+export interface GeneratedTask {
+  task_id: number
+  task_code: string | null
+  title: string
+  task_type: string
+  task_subtype: string | null
+}
+
+export type EssentialType = 'feature' | 'improvement' | 'refactor'
+
+export interface Essential {
+  id: number
+  essential_code: string
+  proposal_id: number
+  type: EssentialType
+  title: string
+  description: string | null
+  created_by_id: number | null
   created_at: string
   updated_at: string | null
 }

vite.config.ts

@@ -19,4 +19,11 @@ export default defineConfig({
       },
     },
   },
+  test: {
+    globals: true,
+    environment: 'jsdom',
+    setupFiles: './src/test/setup.ts',
+    css: true,
+    include: ['src/test/**/*.test.{ts,tsx}'],
+  },
 })