docs: update README with OpenCode references and deployment guide

- Replace RunFusion with OpenCode in description
- Add frontend environment variables section
- Add deployment quick start guide
- Update scope boundaries with current task status

README.md

@@ -1,6 +1,6 @@
 # Headquarter
 
-Hosted workspace and tool-orchestration platform where authenticated users create projects, connect Git repositories, and spawn self-hosted tools such as RunFusion and code-server.
+Hosted workspace and tool-orchestration platform where authenticated users create projects, connect Git repositories, and spawn self-hosted tools such as OpenCode and code-server.
 
 ## Current Status
 
@@ -8,7 +8,7 @@ This repository provides:
 
 - React + Vite + TypeScript frontend (`apps/web`)
 - FastAPI + Python backend (`apps/api`)
-- Manifest-driven tool registry with built-in RunFusion and code-server definitions
+- Manifest-driven tool registry with built-in OpenCode and code-server definitions
 - Root monorepo tooling (pnpm workspace, Makefile)
 - Docker Compose local development stack
 - Deployment skeleton for Portainer + Traefik
@@ -90,6 +90,36 @@ See [Development](docs/development.md) for details on running these checks local
 - [Deployment](docs/deployment.md) — Portainer/Traefik assumptions
 - [Deploy Skeleton](deploy/README.md) — Deployment file reference
 
+## Frontend Environment Variables
+
+The frontend (`apps/web`) requires these environment variables:
+
+| Variable | Description |
+|----------|-------------|
+| `VITE_API_URL` | Backend API base URL |
+| `VITE_OIDC_ISSUER` | OIDC provider issuer URL |
+| `VITE_OIDC_CLIENT_ID` | OIDC client ID |
+| `VITE_OIDC_REDIRECT_URI` | Post-login redirect URL |
+
+Copy `apps/web/.env.example` to `apps/web/.env` and fill in your values.
+
+## Deployment
+
+Deploy to production using Docker Compose:
+
+```bash
+# Copy and configure production environment
+cp deploy/.env.example deploy/.env
+# Edit deploy/.env with your domain and secrets
+
+# Deploy locally for testing
+docker compose -f docker-compose.prod.yml up --build -d
+
+# Or deploy via Portainer using deploy/portainer-stack.yml
+```
+
+See [Deployment Guide](docs/deployment.md) for full details.
+
 ## Scope Boundaries
 
 This scaffold intentionally defers detailed implementation to follow-up tasks:
@@ -99,7 +129,7 @@ This scaffold intentionally defers detailed implementation to follow-up tasks:
 - **FN-006** — Full deployment automation, dynamic Traefik labels for spawned tool containers
 - **FN-003** — Manifest-driven tool registry
 - **FN-007** — Provider-independent Git connection model
-- **FN-008** — RunFusion executable environment proof of concept
+- **FN-008** — OpenCode terminal environment proof of concept
 - **FN-009** — Persistent config and secrets handling
 - **FN-010** — code-server manifest and spawn flow