Refactor UI modules and harden run/API behavior

README.md

@@ -57,6 +57,7 @@ TypeScript runtime for deterministic multi-agent execution with:
 
 ```bash
 npm install
+npm --prefix ui install
 cp .env.example .env
 cp mcp.config.example.json mcp.config.json
 ```
@@ -83,6 +84,8 @@ Start the local UI server:
 npm run ui
 ```
 
+This script builds the React frontend from `ui/` before serving.
+
 Then open:
 
 - `http://127.0.0.1:4317` (default)