feat: implement AI Workspace context MCP server with read-only access and add related tests

scripts/README.md

@@ -26,6 +26,13 @@ The service manager reads `profiles/<profile>/services.json` and manages local
 services such as the Mattermost proxy mirror and Photo Inbox. Runtime PID/state
 and logs stay under `.aiw/runtime/`.
 
+The local context MCP server lives in:
+
+- `scripts/mcp/aiw-context-mcp/`
+
+It exposes read-only workspace context to local AI clients and is started as the
+`aiw-context-mcp` service for profiles that enable it.
+
 Recommended memory commands:
 
 ```bash