docs: Add documentation for get_components action in manage_gameobject

- Add get_components to the list of available actions in the docstring

- Document required and optional parameters for get_components action

- Clarify the return value structure for get_components

- Improve overall documentation clarity for component data retrieval

Author: dsarno

UnityMcpServer/src/tools/manage_gameobject.py

@@ -40,7 +40,7 @@ def manage_gameobject(
         """Manages GameObjects: create, modify, delete, find, and component operations.
 
         Args:
-            action: Operation (e.g., 'create', 'modify', 'find', 'add_component', 'remove_component', 'set_component_property').
+            action: Operation (e.g., 'create', 'modify', 'find', 'add_component', 'remove_component', 'set_component_property', 'get_components').
             target: GameObject identifier (name or path string) for modify/delete/component actions.
             search_method: How to find objects ('by_name', 'by_id', 'by_path', etc.). Used with 'find' and some 'target' lookups.
             name: GameObject name - used for both 'create' (initial name) and 'modify' (rename).
@@ -62,8 +62,16 @@ def manage_gameobject(
                      search_term, find_all for 'find').
             includeNonPublicSerialized: If True, includes private fields marked [SerializeField] in component data.
 
+            Action-specific details:
+            - For 'get_components':
+                Required: target, search_method
+                Optional: includeNonPublicSerialized (defaults to True)
+                Returns all components on the target GameObject with their serialized data.
+                The search_method parameter determines how to find the target ('by_name', 'by_id', 'by_path').
+
         Returns:
             Dictionary with operation results ('success', 'message', 'data').
+            For 'get_components', the 'data' field contains a dictionary of component names and their serialized properties.
         """
         try:
             # --- Early check for attempting to modify a prefab asset ---