feat: 增强日历功能并集成 AgentScope 代理服务

backend/src/models/friendships.py

@@ -1,9 +1,10 @@
 from __future__ import annotations
 
 import uuid
+from datetime import datetime
 from enum import Enum
 
-from sqlalchemy import String
+from sqlalchemy import DateTime, String
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import Mapped, mapped_column
 
@@ -42,12 +43,12 @@ class Friendship(TimestampMixin, SoftDeleteMixin, Base):
         nullable=False,
         default=FriendshipStatus.PENDING,
     )
-    requested_at: Mapped[uuid.UUID | None] = mapped_column(
-        UUID(as_uuid=True),
+    requested_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True),
         nullable=True,
     )
-    accepted_at: Mapped[uuid.UUID | None] = mapped_column(
-        UUID(as_uuid=True),
+    accepted_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True),
         nullable=True,
     )
     blocked_by: Mapped[uuid.UUID | None] = mapped_column(

backend/src/models/inbox_messages.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import uuid
 from enum import Enum
 
-from sqlalchemy import String, Text
+from sqlalchemy import Boolean, String, Text
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import Mapped, mapped_column
 
@@ -60,7 +60,7 @@ class InboxMessage(TimestampMixin, Base):
         nullable=True,
     )
     is_read: Mapped[bool] = mapped_column(
-        String(10),
+        Boolean,
         nullable=False,
         default=False,
     )