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/issues_client.py

@@ -1,7 +1,7 @@
 """Issues client for Gitea API operations."""
 
 import logging
-from typing import Any, Callable, Optional
+from typing import Callable, Optional
 
 import httpx
 
@@ -196,7 +196,7 @@ class IssuesClient:
             The created issue.
         """
         url = f"{self.base_url}/api/v1/repos/{owner}/{repo}/issues"
-        data: dict[str, Any] = {"title": title, "body": body}
+        data: dict[str, str | list[str]] = {"title": title, "body": body}
         if labels:
             data["labels"] = labels
         if assignees: