flatten app to repo root and update docker deployment for single-stack runtime

README.md

@@ -13,7 +13,6 @@ Turbopack-first rebuild of a fiscal.ai-style terminal with OpenClaw integration.
 ## Run locally
 
 ```bash
-cd frontend
 npm install
 npm run dev
 ```
@@ -23,14 +22,23 @@ Open [http://localhost:3000](http://localhost:3000).
 ## Production build
 
 ```bash
-cd frontend
 npm run build
 npm run start
 ```
 
+## Docker deployment
+
+```bash
+cp .env.example .env
+docker compose up --build -d
+```
+
+Default app URL: `http://localhost:3000` (override with `APP_PORT` in `.env`).
+Runtime data persists in the `app_data` volume (`/app/data` in container).
+
 ## Environment
 
-Use root `.env` or `frontend/.env.local`:
+Use root `.env` or root `.env.local`:
 
 ```env
 # leave blank for same-origin API