Add gitea-shim integration and update workflow services

worker/orca-agent/src/server/services/github_service.py

@@ -1,8 +1,20 @@
 import re
 import requests
-from github import Github
 import os
 import logging
+import sys
+from pathlib import Path
+
+# Add the gitea-shim to the path
+gitea_shim_path = Path(__file__).parent.parent.parent.parent.parent / "gitea-shim" / "python"
+sys.path.insert(0, str(gitea_shim_path))
+
+try:
+    from gitea_shim import get_github_client, is_gitea_mode
+except ImportError:
+    # Fallback to regular GitHub if shim is not available
+    from github import Github as get_github_client
+    is_gitea_mode = lambda: False
 
 logger = logging.getLogger(__name__)
 
@@ -14,7 +26,11 @@ def verify_pr_ownership(
     expected_repo,
 ):
     try:
-        gh = Github(os.environ.get("GITHUB_TOKEN"))
+        # Use the shim to get GitHub-compatible client
+        gh = get_github_client()
+        
+        # Log which API we're using
+        logger.info(f"Using {'Gitea' if is_gitea_mode() else 'GitHub'} API for PR verification")
 
         match = re.match(r"https://github.com/([^/]+)/([^/]+)/pull/(\d+)", pr_url)
         if not match: