docs: Update docs for dashboard root and API stats

README.md

@@ -66,5 +66,14 @@ mcp-memory gate verify
 `
 This queries the daemon (via HTTP) to confirm if pre-push validation (like running tests via PrePushAuditor) has been cleared by the agent.
 `
+## Brain Monitor Dashboard
+The server hosts a live, real-time HTML dashboard called the **Brain Monitor**. It visually tracks the metrics of your Antigravity knowledge graph, such as the total count of Entities, Relations, Tasks, Snippets, and Architectural Decisions (ADRs).
+
+To view the dashboard, simply navigate to the root endpoint in your browser while the server is running:
+`http://127.0.0.1:3000/`
+
+You can also programmatically query these live metrics via the API endpoint:
+`curl http://127.0.0.1:3000/api/stats`
+
 ## Further Reading
 For a deep dive into the architecture, Write-Ahead Logging (WAL), locking mechanisms, and the HTTP SSE event loop, consult the design.md file in this repository.