Add AI writing assistant plugin with local backend, brave search, and image generation support

- Implement local backend AI provider with Ollama integration
- Add Brave Search API integration for real-time search suggestions
- Add image generation manager with multiple AI providers
- Create hybrid provider system with local/cloud fallback
- Add comprehensive settings UI with provider management
- Implement Gutenberg sidebar with writing assistance controls
- Add SEO schema generation for AI-generated content
- Multiple provider support: OpenRouter, local backend, Codex

downloads/agentic-writer-local-backend/README.md

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+# Agentic Writer Local Backend
+
+Run unlimited AI content generation on your own machine using your Claude CLI + Z.ai/Anthropic account.
+
+## Prerequisites
+
+Before starting, ensure you have:
+
+- ✅ **Claude CLI** installed and configured
+  - Get it: [https://claude.ai/code](https://claude.ai/code) or [https://z.ai](https://z.ai)
+  - Verify: `claude --version` or `which claude`
+- ✅ **Node.js 18+** installed
+  - Download: [https://nodejs.org](https://nodejs.org)
+  - Verify: `node --version`
+- ✅ **Z.ai Coding Plan** or **Anthropic API key** configured in Claude CLI
+
+## Quick Start
+
+### 1. Extract Package
+
+```bash
+unzip agentic-writer-local-backend.zip
+cd agentic-writer-local-backend
+```
+
+### 2. Start the Proxy
+
+```bash
+chmod +x *.sh
+./start-proxy.sh
+```
+
+You'll see:
+
+```
+═══════════════════════════════════════════════════
+✅ Local Backend Running!
+═══════════════════════════════════════════════════
+
+Your Configuration:
+  Base URL: http://192.168.1.105:8080
+  API Key:  dummy
+  Model:    claude-local
+```
+
+### 3. Configure WordPress Plugin
+
+1. Open **WP Admin** → **Agentic Writer** → **Settings** → **Local Backend**
+2. Paste the **Base URL** shown above
+3. API Key: `dummy`
+4. Click **Test Connection** → should show ✅
+5. Start generating content!
+
+## Commands
+
+```bash
+./start-proxy.sh       # Start proxy (runs in background)
+./stop-proxy.sh        # Stop proxy
+./test-connection.sh   # Test if proxy responds
+./get-local-ip.sh      # Find your local IP address
+tail -f proxy.log      # View real-time logs
+```
+
+## Firewall Setup
+
+The proxy needs to accept connections from your WordPress site.
+
+### macOS
+
+1. **System Settings** → **Network** → **Firewall**
+2. Click **Options** → **Add** → Select `node`
+3. Set to **Allow incoming connections**
+
+### Linux (ufw)
+
+```bash
+sudo ufw allow 8080/tcp
+sudo ufw reload
+```
+
+### Windows
+
+1. **Windows Defender Firewall** → **Advanced Settings**
+2. **Inbound Rules** → **New Rule**
+3. **Port** → TCP **8080** → **Allow**
+
+## How It Works
+
+```
+WordPress Plugin → HTTP POST → Local Proxy (port 8080)
+                                     ↓
+                               Spawns Claude CLI
+                                     ↓
+                            Returns AI Response
+```
+
+**Benefits:**
+- 🆓 **Free**: Uses your existing Z.ai/Anthropic subscription
+- 🔒 **Private**: Content never leaves your network
+- ⚡ **Fast**: LAN latency (~50-200ms)
+- 🚀 **Unlimited**: No rate limits, no token counting
+
+## Troubleshooting
+
+See [TROUBLESHOOTING.md](TROUBLESHOOTING.md) for detailed solutions.
+
+### Quick Fixes
+
+**"Connection failed" in plugin:**
+```bash
+# Check proxy is running
+ps aux | grep claude-proxy
+
+# Restart if needed
+./stop-proxy.sh && ./start-proxy.sh
+```
+
+**"Claude CLI not found":**
+```bash
+# Verify Claude is installed
+which claude
+claude --version
+
+# Test Claude works
+echo "Hello" | claude
+```
+
+**"Wrong IP address":**
+```bash
+# Find your correct IP
+./get-local-ip.sh
+
+# Or manually:
+# macOS:   ipconfig getifaddr en0
+# Linux:   ip route get 1 | awk '{print $7}'
+```
+
+**Port 8080 already in use:**
+```bash
+# Find what's using it
+lsof -i :8080
+
+# Change port (edit claude-proxy.js)
+PORT=9000 node claude-proxy.js
+# Update plugin Base URL to: http://your-ip:9000
+```
+
+## Security Notes
+
+- Proxy binds to `0.0.0.0` (all network interfaces) for LAN access
+- No authentication by design (LAN trust model)
+- All request prompts are logged to `proxy.log`
+- For internet exposure, use ngrok/reverse proxy with authentication
+
+## Environment Variables
+
+```bash
+PORT=9000 ./start-proxy.sh     # Use different port
+NODE_ENV=production            # Production mode
+```
+
+## Support
+
+- **Documentation**: [Plugin Docs](https://github.com/your/plugin)
+- **Issues**: [GitHub Issues](https://github.com/your/plugin/issues)
+- **Community**: [Discord](https://discord.gg/your-server)
+
+## License
+
+GPL-2.0+ - Same as WP Agentic Writer plugin