Add Docker deployment support and PWA enhancements

- Add Dockerfile with multi-stage build (Node.js + Nginx)
- Add docker-compose.yml for Portainer stack deployment on port 7777
- Add nginx.conf with PWA support, gzip compression, and security headers
- Add .dockerignore for optimized Docker builds
- Add DEPLOYMENT.md with comprehensive deployment guide
- Configure Vite PWA plugin with service worker and offline support
- Add PWA manifest.json with app icons and shortcuts
- Enhance logo.svg with iOS-style glass effects (filters, gradients, highlights)
- Add app-icon.svg for PWA installation
- Update mobile nav with glassmorphic active tab styling
- Fix mobile tab bar layout shift issues with flex-1 and consistent sizing
- Update index.html with PWA meta tags and Apple-specific settings
- Add health check endpoint at /health for container monitoring

Co-authored-by: Cursor <cursoragent@cursor.com>

DEPLOYMENT.md

@@ -0,0 +1,174 @@
+# IndeedHub - Portainer Deployment Guide
+
+## Quick Deploy with Portainer Stacks
+
+### Method 1: Using Portainer Stacks (Recommended)
+
+1. **Log into Portainer**
+2. **Navigate to Stacks**
+3. **Click "Add Stack"**
+4. **Choose "Git Repository"** or **"Upload"** the `docker-compose.yml`
+5. **Configure:**
+   - Name: `indeedhub-prototype`
+   - Repository URL: (your git repo)
+   - Compose path: `docker-compose.yml`
+6. **Deploy**
+
+### Method 2: Using Docker Compose Directly
+
+```bash
+# Build and run
+docker-compose up -d --build
+
+# View logs
+docker-compose logs -f
+
+# Stop
+docker-compose down
+```
+
+## Access
+
+- **Application URL**: `http://your-server:7777`
+- **Health Check**: `http://your-server:7777/health`
+
+## Configuration
+
+### Port Configuration
+The application runs on port **7777** by default. To change:
+
+```yaml
+# In docker-compose.yml
+ports:
+  - "YOUR_PORT:7777"
+```
+
+### Environment Variables
+Add any required environment variables in `docker-compose.yml`:
+
+```yaml
+environment:
+  - NODE_ENV=production
+  - VITE_API_URL=https://your-api.com
+```
+
+## Build Details
+
+### Multi-stage Docker Build
+1. **Builder Stage**: Compiles Vue/TypeScript application
+2. **Production Stage**: Serves built files with Nginx
+
+### Features
+- ✅ Nginx web server (Alpine Linux)
+- ✅ Gzip compression
+- ✅ Security headers
+- ✅ PWA support with proper MIME types
+- ✅ Vue Router SPA fallback
+- ✅ Service Worker support
+- ✅ Health check endpoint
+- ✅ Auto-restart enabled
+
+## Monitoring
+
+### Health Check
+```bash
+curl http://localhost:7777/health
+```
+
+### Container Status
+```bash
+docker ps | grep indeedhub
+```
+
+### View Logs
+```bash
+docker logs -f indeedhub-app
+```
+
+## Updates
+
+### Rebuild and Deploy
+```bash
+docker-compose down
+docker-compose up -d --build
+```
+
+### Using Portainer
+1. Go to your stack
+2. Click "Update"
+3. Enable "Pull latest image"
+4. Click "Update the stack"
+
+## Troubleshooting
+
+### Container won't start
+```bash
+# Check logs
+docker logs indeedhub-app
+
+# Check if port is available
+lsof -i :7777
+```
+
+### Build fails
+```bash
+# Clear Docker cache
+docker builder prune
+
+# Rebuild without cache
+docker-compose build --no-cache
+```
+
+## Production Checklist
+
+- ✅ Port 7777 exposed
+- ✅ Health checks configured
+- ✅ Auto-restart enabled
+- ✅ Gzip compression enabled
+- ✅ Security headers set
+- ✅ PWA manifest support
+- ✅ Service worker caching
+- ✅ SPA routing configured
+- ✅ Docker networking isolated
+
+## Stack Configuration for Portainer
+
+Copy this into Portainer Stack editor:
+
+```yaml
+version: '3.8'
+
+services:
+  indeedhub:
+    image: indeedhub-prototype:latest
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: indeedhub-app
+    restart: unless-stopped
+    ports:
+      - "7777:7777"
+    environment:
+      - NODE_ENV=production
+    networks:
+      - indeedhub-network
+    labels:
+      - "com.centurylinklabs.watchtower.enable=true"
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:7777/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+networks:
+  indeedhub-network:
+    driver: bridge
+```
+
+## Support
+
+For issues, check:
+1. Container logs: `docker logs indeedhub-app`
+2. Health endpoint: `http://localhost:7777/health`
+3. Nginx config: `/etc/nginx/conf.d/default.conf`