add exeception

.gitea/scripts/code_review.py

@@ -193,9 +193,11 @@ async def get_file_content(file: str) -> str | None:
             async with session.get(url) as response:
                 response.raise_for_status()
                 return await response.text()
-    except Exception as e:
-        print(f"Failed to get file content: {e}")
-        return None
+    except aiohttp.ClientError as e:  # More specific exception handling
+        print(f"Network error fetching {file}: {e}")
+    except asyncio.TimeoutError:
+        print(f"Timeout fetching {file}")
+    return None
 
 
 async def analyze_full_context(