Add launchd service configuration for production deployment

LAUNCHD_QUICK_START.md

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+# Quick Start: launchd Service
+
+This is a quick reference for installing and running PrivaseeAI Security as a macOS background service.
+
+## Files Created
+
+1. **com.privaseeai.security.plist** - launchd configuration file
+2. **LAUNCHD_SERVICE_GUIDE.md** - Complete installation and management guide
+3. **src/privaseeai_security/daemon.py** - Alternative daemon entry point
+4. **Orchestrator daemon mode** - Added `__main__` block to orchestrator.py
+
+## Quick Installation
+
+```bash
+# 1. Install the package
+pip install -e .
+
+# 2. Create required directories
+sudo mkdir -p /var/log/privaseeai /opt/privaseeai
+sudo chown $(whoami):staff /var/log/privaseeai /opt/privaseeai
+chmod 700 /var/log/privaseeai
+
+# 3. Install the service
+cp com.privaseeai.security.plist ~/Library/LaunchAgents/
+
+# 4. Load and start
+launchctl load ~/Library/LaunchAgents/com.privaseeai.security.plist
+
+# 5. Verify it's running
+launchctl list | grep com.privaseeai.security
+tail -f /var/log/privaseeai/security.log
+```
+
+## Service Features
+
+✅ **Auto-start on boot** - Runs automatically when you log in  
+✅ **Auto-restart on crash** - Keeps running with 60-second minimum restart delay  
+✅ **Centralized logging** - All output goes to `/var/log/privaseeai/security.log`  
+✅ **User agent** - Runs as your user, not as root  
+✅ **Python module execution** - Runs via `python -m privaseeai_security.orchestrator`
+
+## Quick Commands
+
+```bash
+# Status
+launchctl list | grep com.privaseeai.security
+
+# Logs
+tail -f /var/log/privaseeai/security.log
+
+# Restart
+launchctl stop com.privaseeai.security
+
+# Unload
+launchctl unload ~/Library/LaunchAgents/com.privaseeai.security.plist
+```
+
+## Test the Service
+
+```bash
+# Run the complete test suite
+python3 -m pytest tests/unit/test_launchd_service.py -v
+
+# Test running orchestrator manually
+python3 -m privaseeai_security.orchestrator
+# Press Ctrl+C to stop
+```
+
+## For Full Documentation
+
+See **LAUNCHD_SERVICE_GUIDE.md** for:
+- Detailed installation steps
+- Configuration options
+- Troubleshooting guide
+- Advanced customization
+- Security considerations