fix: add try-except around pull request creation to catch errors

aider_gitea/__init__.py

@@ -270,6 +270,7 @@ def push_changes(
     run_cmd(cmd, cwd)
 
     # Then create the PR with the aider label
+    try:
         pr_response = gitea_client.create_pull_request(
             owner=repository_config.owner,
             repo=repository_config.repo,
@@ -279,6 +280,9 @@ def push_changes(
             base=repository_config.base_branch,
             labels=['aider'],
         )
+    except Exception:
+        logger.exception('Failed to create pull request for issue %s', issue_number)
+        return IssueResolution(False)
 
     # Extract PR number and URL if available
     return IssueResolution(