SIENTIAPDE-1243: Refactor and enhance model manager activities and workflows

This commit includes several changes:

- Reorganized imports and class inheritance in activities.py, gates.py and mlflow.py for better readability and maintainability.
- Improved error handling and logging in gates.py and mlflow.py.
- Added input validation and filtering in gates.py to ensure data quality.
- Enhanced prediction formatting and storage policy management in gates.py.
- Updated metrics.py to use consistent naming conventions and labels.
- Refactored connectors_config.py to use type hints and improve code clarity.
- Updated conditional and MLFlow filters for better data quality checks.
- Improved model repository logic for retraining and updating models.
- Enhanced worker.py to include SDK metrics and improved error handling.
- Refactored workflows for better modularity and error handling.
- Updated tests to reflect the changes and improve test coverage.

model_manager/activities/activities.py

@@ -1,12 +1,14 @@
-from temporalio import activity, workflow
+from temporalio import workflow
 
 with workflow.unsafe.imports_passed_through():
-    from sientia_do.temporal.activities.postgres import Postgres
+    from typing import Any
+
     from sientia_do.notifications.handlers import CoreNotificationHandler as NotificationHandler
     from sientia_do.observability.logger import Logger
-    from model_manager.activities.mlflow import MLFlow
+    from sientia_do.temporal.activities.postgres import Postgres
+
     from model_manager.activities.gates import Gates
-    from typing import Any
+    from model_manager.activities.mlflow import MLFlow
 
 
 class Activities(Postgres, MLFlow, Gates):
@@ -29,11 +31,13 @@ class Activities(Postgres, MLFlow, Gates):
         notification_handler (NotificationHandler): Notification management instance
     """
 
-    def __init__(self,
-                 postgres_config: dict[str, Any],
-                 mlflow_config: dict[str, Any],
-                 logger: Logger,
-                 notification_handler: NotificationHandler):
+    def __init__(
+        self,
+        postgres_config: dict[str, Any],
+        mlflow_config: dict[str, Any],
+        logger: Logger,
+        notification_handler: NotificationHandler,
+    ):
         """
         Initialize the Activities orchestrator with all required configurations.
 
@@ -52,25 +56,30 @@ class Activities(Postgres, MLFlow, Gates):
             Exception: If any parent class initialization fails
         """
         # Initialize parent classes
-        Postgres.__init__(self, host=postgres_config['host'],
-                          port=postgres_config['port'],
-                          user=postgres_config['user'],
-                          password=postgres_config['password'],
-                          dbname=postgres_config['dbname'],
-                          min_connections=postgres_config['min_connections'],
-                          max_connections=postgres_config['max_connections'],
-                          logger=logger,
-                          notification_handler=notification_handler)
+        Postgres.__init__(
+            self,
+            host=postgres_config['host'],
+            port=postgres_config['port'],
+            user=postgres_config['user'],
+            password=postgres_config['password'],
+            dbname=postgres_config['dbname'],
+            min_connections=postgres_config['min_connections'],
+            max_connections=postgres_config['max_connections'],
+            logger=logger,
+            notification_handler=notification_handler,
+        )
 
-        MLFlow.__init__(self, mlflow_host=mlflow_config['host'],
-                        mlflow_port=mlflow_config['port'],
-                        mlflow_username=mlflow_config['username'],
-                        mlflow_password=mlflow_config['password'],
-                        logger=logger,
-                        notification_handler=notification_handler)
+        MLFlow.__init__(
+            self,
+            mlflow_host=mlflow_config['host'],
+            mlflow_port=mlflow_config['port'],
+            mlflow_username=mlflow_config['username'],
+            mlflow_password=mlflow_config['password'],
+            logger=logger,
+            notification_handler=notification_handler,
+        )
 
-        Gates.__init__(self, logger=logger,
-                       notification_handler=notification_handler)
+        Gates.__init__(self, logger=logger, notification_handler=notification_handler)
 
     async def shutdown(self):
         """