fix: replace bare except blocks with specific exception types

backend/consensus/worker_service.py

@@ -494,7 +494,7 @@ def health_check():
             "cpu_percent": round(process.cpu_percent(), 2),
             "memory_percent": round(process.memory_percent(), 2),
         }
-    except:
+    except (psutil.Error, OSError):
         pass
 
     # Probe local GenVM manager responsiveness.

backend/database_handler/migration/versions/02aa0c34a463_validator_config_string_to_jsonb.py

@@ -31,7 +31,7 @@ def transform(value):
         if isinstance(value, str):
             try:
                 return json.loads(value)
-            except:
+            except (json.JSONDecodeError, TypeError):
                 print(f"Failed to parse JSON: {value}. Removing configuration.")
                 return {}
         print(f"Unexpected type: {type(value)}. Removing configuration.")

backend/database_handler/transactions_processor.py

@@ -900,7 +900,7 @@ def get_transaction_count(self, address: str) -> int:
         # Normalize address to checksum format
         try:
             checksum_address = self.web3.to_checksum_address(address)
-        except:
+        except (ValueError, TypeError):
             checksum_address = address
 
         # Always use database count as source of truth

backend/node/create_nodes/providers.py

@@ -23,7 +23,7 @@ def is_ollama_available() -> bool:
         result = sock.connect_ex(("ollama", int(os.getenv("OLAMAPORT", "11434"))))
         sock.close()
         return result == 0
-    except:
+    except (OSError, ValueError):
         return False
 
 

backend/protocol_rpc/fastapi_endpoint_generator.py

@@ -315,7 +315,7 @@ async def handle_method(
             if db and hasattr(db, "rollback"):
                 try:
                     db.rollback()
-                except:
+                except Exception:
                     pass  # Ignore rollback errors
 
             raise