fix: indentation gitea_client + request defaults

app/routers/gitea.py

@@ -43,7 +43,7 @@ async def list_projects(request: Request, org: str = ""):
 
 # ── Repo tree ──
 @router.get("/projects/{owner}/{repo}/tree")
-async def repo_tree(owner: str, repo: str, path: str = "", request: Request = None):
+async def repo_tree(owner: str, repo: str, path: str = "", request: Request):
     """Get contents of a repo directory (one level)."""
     gitea = _require_gitea(request)
     try:
@@ -64,7 +64,7 @@ async def repo_tree(owner: str, repo: str, path: str = "", request: Request = No
 
 # ── File content ──
 @router.get("/projects/{owner}/{repo}/file")
-async def get_file(owner: str, repo: str, path: str, request: Request = None):
+async def get_file(owner: str, repo: str, path: str, request: Request):
     """Get file content (decoded)."""
     gitea = _require_gitea(request)
     try:
@@ -117,7 +117,7 @@ async def delete_file(owner: str, repo: str, request: Request):
 
 # ── Labels ──
 @router.get("/projects/{owner}/{repo}/labels")
-async def get_labels(owner: str, repo: str, request: Request = None):
+async def get_labels(owner: str, repo: str, request: Request):
     """Get labels for a repo (mapped to tags)."""
     gitea = _require_gitea(request)
     try: