feat: add boards and tasks management endpoints

backend/app/schemas/tasks.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from datetime import datetime
+from uuid import UUID
+
+from sqlmodel import SQLModel
+
+
+class TaskBase(SQLModel):
+    title: str
+    description: str | None = None
+    status: str = "inbox"
+    priority: str = "medium"
+    due_at: datetime | None = None
+
+
+class TaskCreate(TaskBase):
+    created_by_user_id: UUID | None = None
+
+
+class TaskUpdate(SQLModel):
+    title: str | None = None
+    description: str | None = None
+    status: str | None = None
+    priority: str | None = None
+    due_at: datetime | None = None
+
+
+class TaskRead(TaskBase):
+    id: UUID
+    board_id: UUID | None
+    created_by_user_id: UUID | None
+    created_at: datetime
+    updated_at: datetime