Fix mcp_docs component initialization order issue

Fixed AttributeError where selected_servers was accessed before initialization.
The issue was that Component.__init__() calls _discover_component_files()
which tried to access self.selected_servers before it was set.

Solution: Initialize selected_servers and server_docs_map before calling
super().__init__() to ensure they're available when needed.

Fixes:
- mcp_docs component now properly discovered and listed
- Installation commands work correctly with mcp_docs
- Dry-run installations complete successfully

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

setup/components/mcp_docs.py

@@ -14,7 +14,9 @@ class MCPDocsComponent(Component):
     
     def __init__(self, install_dir: Optional[Path] = None):
         """Initialize MCP docs component"""
-        super().__init__(install_dir, Path(""))
+        # Initialize attributes before calling parent constructor
+        # because parent calls _discover_component_files() which needs these
+        self.selected_servers: List[str] = []
         
         # Map server names to documentation files
         self.server_docs_map = {
@@ -26,8 +28,7 @@ class MCPDocsComponent(Component):
             "morphllm": "MCP_Morphllm.md"
         }
         
-        # This will be set during installation - initialize as empty list
-        self.selected_servers: List[str] = []
+        super().__init__(install_dir, Path(""))
     
     def get_metadata(self) -> Dict[str, str]:
         """Get component metadata"""