feat: integrate PluginStore and MinIO repository into model manager activities

- Added PluginStore integration for model management.
- Replaced StorageRepository with MinIORepository in Activities, Cleanup, and Training classes.
- Updated training logic to handle validation files and improved data management.
- Enhanced configuration for MinIO and PluginStore in connectors.
- Removed deprecated model repository and storage repository files.
- Updated environment variable handling for new configurations.

model_manager/utils/connectors_config.py

@@ -121,3 +121,43 @@ def build_minio_config() -> dict[str, Any]:
         'connect_timeout': int(getenv('MINIO_CONNECT_TIMEOUT', '10')),
         'read_timeout': int(getenv('MINIO_READ_TIMEOUT', '60')),
     }
+
+
+def build_plugin_store_config() -> dict[str, Any]:
+    """
+    Build PluginStore configuration from environment variables.
+
+    This function constructs a configuration dictionary for the PluginStore
+    client using environment variables with sensible defaults for local
+    development.
+
+    Environment Variables:
+        STORE_BASE_URL: Base URL of the PluginStore backing Git server
+                         (default: http://localhost:3000)
+        STORE_OWNER: Repository owner/organization (default: sientia)
+        STORE_REPO: Repository name (default: model-library-store)
+        STORE_BRANCH: Optional branch name
+        STORE_USERNAME: Optional username for Git HTTP authentication
+        STORE_PASSWORD: Optional password/token for Git HTTP authentication
+        PYPI_SERVER: Optional custom PyPI index URL for runtime installation
+                     (default: http://localhost:5000)
+        PYPI_USERNAME: Optional username for PyPI authentication
+        PYPI_PASSWORD: Optional password/token for PyPI authentication
+
+    Returns:
+        dict: PluginStore configuration dictionary with all connector parameters
+    """
+
+    cache_ttl_seconds = getenv('STORE_CACHE_TTL_SECONDS')
+    return {
+        'base_url': getenv('STORE_BASE_URL', 'http://localhost:3000'),
+        'owner': getenv('STORE_OWNER', 'sientia'),
+        'repo': getenv('STORE_REPO', 'model-library-store'),
+        'username': getenv('STORE_USERNAME'),
+        'password': getenv('STORE_PASSWORD'),
+        'branch': getenv('STORE_BRANCH'),
+        'cache_ttl_seconds': int(cache_ttl_seconds) if cache_ttl_seconds else None,
+        'pypi_index_url': getenv('PYPI_SERVER', 'http://localhost:5000'),
+        'pypi_username': getenv('PYPI_USERNAME'),
+        'pypi_password': getenv('PYPI_PASSWORD'),
+    }