refactor: replace Any types with specific types and update bad_code.md

- Replace Any with object or specific types across codebase
- Add ReviewRequest dataclass for PR review payloads
- Update bad_code.md: mark 5.1 (Any Type Overuse) as resolved
- Fix summary table with accurate counts and unresolved issues list

gitea/notifications_client.py

@@ -1,7 +1,7 @@
 """Notifications client for Gitea API operations."""
 
 import logging
-from typing import Any, Optional
+from typing import Optional
 
 import httpx
 
@@ -26,7 +26,7 @@ class NotificationsClient:
 
     def list_unread_notifications(
         self, since: Optional[str] = None
-    ) -> list[dict[str, Any]]:
+    ) -> list[dict[str, object]]:
         """List unread notifications.
 
         Args:
@@ -42,9 +42,9 @@ class NotificationsClient:
                 params["since"] = since
             response = self.client.get(url, params=params)
             response.raise_for_status()
-            notifications: list[dict[str, Any]] = response.json()
+            notifications: list[dict[str, object]] = response.json()
 
-            result: list[dict[str, Any]] = []
+            result: list[dict[str, object]] = []
             for n in notifications:
                 repo_info = n.get("repository") or {}
                 owner_info = repo_info.get("owner") or {}