清除“Task”模块

backend/app/schemas/progress.py

@@ -4,7 +4,4 @@ from pydantic import BaseModel
 class StudyProgressRead(BaseModel):
     milestones_total: int
     milestones_done: int
-    tasks_total: int
-    tasks_done: int
-    tasks_overdue: int
     completion_rate: float

backend/app/schemas/task.py

@@ -1,45 +0,0 @@
-import uuid
-from datetime import date, datetime
-from typing import Optional
-
-from pydantic import BaseModel, ConfigDict
-
-from app.schemas.user import UserDisplay
-
-
-class TaskCreate(BaseModel):
-    milestone_id: Optional[uuid.UUID] = None
-    title: str
-    description: Optional[str] = None
-    assignee_id: Optional[uuid.UUID] = None
-    priority: str = "MEDIUM"
-    due_date: Optional[date] = None
-
-
-class TaskUpdate(BaseModel):
-    milestone_id: Optional[uuid.UUID] = None
-    title: Optional[str] = None
-    description: Optional[str] = None
-    assignee_id: Optional[uuid.UUID] = None
-    priority: Optional[str] = None
-    due_date: Optional[date] = None
-    status: Optional[str] = None
-
-
-class TaskRead(BaseModel):
-    id: uuid.UUID
-    study_id: uuid.UUID
-    milestone_id: Optional[uuid.UUID]
-    title: str
-    description: Optional[str]
-    assignee_id: Optional[uuid.UUID]
-    assignee: Optional[UserDisplay] = None
-    priority: str
-    due_date: Optional[date]
-    status: str
-    completed_at: Optional[datetime]
-    created_by: uuid.UUID
-    created_at: datetime
-    updated_at: datetime
-
-    model_config = ConfigDict(from_attributes=True)