feat: remove nginx, add projects/milestones/notifications pages

- Dockerfile: replace nginx with serve for static files
- Fix auth endpoint: /auth/login → /auth/token
- Add ProjectsPage, ProjectDetailPage
- Add MilestonesPage, MilestoneDetailPage with progress bar
- Add NotificationsPage with unread count
- Sidebar: add milestones/notifications nav, live unread badge
- API: configurable VITE_API_BASE for host nginx proxy
- Types: add Milestone, MilestoneProgress, Notification, ProjectMember

src/index.css

@@ -118,3 +118,45 @@ dd { font-size: .9rem; }
 .create-issue label { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; color: var(--text-dim); }
 .create-issue input, .create-issue textarea, .create-issue select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); font-size: .95rem; }
 .create-issue textarea { min-height: 100px; resize: vertical; }
+
+/* Project grid */
+.project-grid, .milestone-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 16px; }
+.project-card, .milestone-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 20px; cursor: pointer; transition: .15s; }
+.project-card:hover, .milestone-card:hover { border-color: var(--accent); background: var(--bg-hover); }
+.project-card h3, .milestone-card h3 { margin-bottom: 8px; }
+.project-desc { color: var(--text-dim); font-size: .9rem; margin-bottom: 12px; }
+.project-meta { font-size: .8rem; color: var(--text-dim); display: flex; gap: 12px; }
+
+/* Milestone card header */
+.milestone-card-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
+.milestone-item { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border); cursor: pointer; }
+.milestone-item:hover { background: var(--bg-hover); }
+.milestone-title { font-weight: 500; }
+
+/* Progress bar */
+.progress-bar-container { width: 100%; height: 20px; background: var(--bg); border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
+.progress-bar { height: 100%; background: var(--success); color: #fff; font-size: .75rem; display: flex; align-items: center; justify-content: center; min-width: 30px; transition: width .3s; border-radius: 10px; }
+
+/* Notification list */
+.notification-list { margin-top: 16px; }
+.notification-item { display: flex; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--border); cursor: pointer; transition: .15s; }
+.notification-item:hover { background: var(--bg-hover); }
+.notification-item.unread { background: var(--bg-card); }
+.notification-dot { width: 12px; color: var(--accent); font-size: .6rem; padding-top: 4px; }
+.notification-body p { margin-bottom: 4px; }
+
+/* Inline form */
+.inline-form { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
+.inline-form input, .inline-form select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); }
+
+/* Filter checkbox */
+.filter-check { display: flex; align-items: center; gap: 6px; color: var(--text-dim); font-size: .9rem; cursor: pointer; }
+
+/* Member list */
+.member-list { display: flex; gap: 8px; flex-wrap: wrap; }
+
+/* Empty state */
+.empty { color: var(--text-dim); font-style: italic; padding: 16px 0; }
+
+/* Text dim helper */
+.text-dim { color: var(--text-dim); font-size: .85rem; }