feat: milestones, due dates, overdue filter, CSV export

app/schemas/schemas.py

@@ -34,6 +34,8 @@ class IssueBase(BaseModel):
     priority: IssuePriorityEnum = IssuePriorityEnum.MEDIUM
     tags: Optional[str] = None
     depends_on_id: Optional[int] = None
+    due_date: Optional[datetime] = None
+    milestone_id: Optional[int] = None
 
 
 class IssueCreate(IssueBase):
@@ -54,6 +56,8 @@ class IssueUpdate(BaseModel):
     assignee_id: Optional[int] = None
     tags: Optional[str] = None
     depends_on_id: Optional[int] = None
+    due_date: Optional[datetime] = None
+    milestone_id: Optional[int] = None
     # Resolution specific
     resolution_summary: Optional[str] = None
     positions: Optional[str] = None
@@ -69,6 +73,8 @@ class IssueResponse(IssueBase):
     resolution_summary: Optional[str]
     positions: Optional[str]
     pending_matters: Optional[str]
+    due_date: Optional[datetime] = None
+    milestone_id: Optional[int] = None
     created_at: datetime
     updated_at: Optional[datetime]
     
@@ -163,3 +169,32 @@ class ProjectMemberResponse(ProjectMemberBase):
     
     class Config:
         from_attributes = True
+
+
+# Milestone schemas
+class MilestoneBase(BaseModel):
+    title: str
+    description: Optional[str] = None
+    due_date: Optional[datetime] = None
+
+
+class MilestoneCreate(MilestoneBase):
+    project_id: int
+
+
+class MilestoneUpdate(BaseModel):
+    title: Optional[str] = None
+    description: Optional[str] = None
+    status: Optional[str] = None
+    due_date: Optional[datetime] = None
+
+
+class MilestoneResponse(MilestoneBase):
+    id: int
+    status: str
+    project_id: int
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+
+    class Config:
+        from_attributes = True