feat(backend): alerts come enriched and paged with an unseen count and a live alert frame

backend/src/utils/read/models.py

@@ -523,12 +523,31 @@ class WatchView(BaseModel):
     id: int
     account_id: int
     kind: str
+    name: str | None
     params: dict[str, Any]
     enabled: bool
     created_at: datetime
     updated_at: datetime
 
 
+class ChatRef(BaseModel):
+    id: int
+    title: str | None
+    kind: str
+    has_avatar: bool
+
+
+class PersonRef(BaseModel):
+    id: int
+    name: str | None
+    has_avatar: bool
+
+
+class WatchItem(WatchView):
+    chat: ChatRef | None
+    person: PersonRef | None
+
+
 class AlertView(BaseModel):
     id: int
     account_id: int
@@ -539,6 +558,65 @@ class AlertView(BaseModel):
     created_at: datetime
 
 
+class AlertWatch(BaseModel):
+    id: int
+    kind: str
+    name: str | None
+
+
+class AlertMessage(BaseModel):
+    id: int
+    text: str | None
+    sender: PersonRef | None
+    date: datetime | None
+    deleted: bool
+    edited: bool
+
+
+class AlertItem(BaseModel):
+    id: int
+    account_id: int
+    ts: datetime
+    seen: bool
+    event: str
+    watch: AlertWatch
+    chat: ChatRef | None
+    message: AlertMessage | None
+    peer: PersonRef | None
+    path: str
+
+
+class AlertPage(BaseModel):
+    items: list[AlertItem]
+    next_before: int | None
+    unseen: int
+
+
+class WebhookView(BaseModel):
+    id: int
+    account_id: int
+    url: str
+    secret: str
+    enabled: bool
+    watch_ids: list[int] | None
+    created_at: datetime
+    updated_at: datetime
+
+
+class DeliveryView(BaseModel):
+    id: int
+    webhook_id: int
+    alert_id: int | None
+    event: str
+    status: str
+    attempts: int
+    next_attempt_at: datetime
+    response_code: int | None
+    last_error: str | None
+    created_at: datetime
+    finished_at: datetime | None
+
+
 class FileShareView(BaseModel):
     id: int
     account_id: int