feat(backend): person overview with real profile changes, shared groups, joins and leaves, deleted count and group title changes

backend/src/utils/read/models.py

@@ -474,6 +474,54 @@ class PeerHistoryView(BaseModel):
     is_deleted_account: bool
 
 
+class ProfileChange(BaseModel):
+    field: str
+    old: str | None
+    new: str | None
+    changed_at: datetime
+    actor_id: int | None = None
+    message_id: int | None = None
+
+
+class MembershipView(BaseModel):
+    chat_id: int
+    chat_title: str | None
+    has_avatar: bool
+    message_id: int
+    event: str
+    actor_id: int | None
+    actor_name: str | None
+    ts: datetime
+
+
+class DirectChatView(BaseModel):
+    chat_id: int
+    message_count: int
+    last_date: datetime | None
+
+
+class PeerOverview(BaseModel):
+    peer: PeerView | None
+    changes: list[ProfileChange]
+    avatars: list[AvatarHistoryView]
+    memberships: list[MembershipView]
+    dm: DirectChatView | None
+
+
+class SharedGroupView(BaseModel):
+    chat_id: int
+    title: str | None
+    has_avatar: bool
+    message_count: int
+    last_date: datetime
+    last_message_id: int
+
+
+class PeerGroups(BaseModel):
+    groups: list[SharedGroupView]
+    deleted_count: int
+
+
 class ChatLinkView(BaseModel):
     message_id: int
     date: datetime | None