feat(backend): storage lists the heaviest chats, summary and file list take a chat filter

backend/src/api/routers/storage.py

@@ -13,6 +13,7 @@ from utils.read import storage as storage_read
 from utils.read.models import (
     DEFAULT_LIMIT,
     Page,
+    StorageChatView,
     StorageFileView,
     StorageScopeView,
     StorageSummaryView,
@@ -47,9 +48,11 @@ class PurgeRequest(BaseModel):
 
 @router.get("/summary")
 async def summary(
-    pool: FromDishka[asyncpg.Pool], account_id: Annotated[int, Query()]
+    pool: FromDishka[asyncpg.Pool],
+    account_id: Annotated[int, Query()],
+    chat_id: Annotated[int | None, Query()] = None,
 ) -> StorageSummaryView:
-    return await storage_read.get_summary(pool, account_id)
+    return await storage_read.get_summary(pool, account_id, chat_id)
 
 
 @router.get("/files")
@@ -57,11 +60,24 @@ async def files(
     pool: FromDishka[asyncpg.Pool],
     account_id: Annotated[int, Query()],
     group: Annotated[str | None, Query()] = None,
+    chat_id: Annotated[int | None, Query()] = None,
     limit: Annotated[int, Query()] = DEFAULT_LIMIT,
     offset: Annotated[int, Query()] = 0,
 ) -> list[StorageFileView]:
     page = Page(limit=limit, offset=offset)
-    return await storage_read.list_files(pool, account_id, group, page)
+    return await storage_read.list_files(pool, account_id, group, page, chat_id)
+
+
+@router.get("/chats")
+async def chats(
+    pool: FromDishka[asyncpg.Pool],
+    account_id: Annotated[int, Query()],
+    group: Annotated[str | None, Query()] = None,
+    limit: Annotated[int, Query()] = DEFAULT_LIMIT,
+    offset: Annotated[int, Query()] = 0,
+) -> list[StorageChatView]:
+    page = Page(limit=limit, offset=offset)
+    return await storage_read.list_chats(pool, account_id, group, page)
 
 
 async def _chat_ids(