feat(cnode): add standalone CLI for Docker server management

- Reorganized server management code:
  - Moved server_cli.py -> deploy/docker/cnode_cli.py
  - Moved server_manager.py -> deploy/docker/server_manager.py

- Created fast Python-based installation (0.1s startup):
  - deploy/installer/cnode_pkg/ - Standalone package
  - deploy/installer/install-cnode.sh - Local installer
  - deploy/installer/deploy.sh - Remote installer for users

- Added backward compatibility:
  - crawl4ai/cli.py: 'crwl server' redirects to 'cnode'
  - Updated tests to match new CLI structure (12/12 passing)

- Automated sync workflow:
  - .githooks/pre-commit - Auto-syncs source to package
  - setup-hooks.sh - One-time setup for contributors
  - deploy/installer/sync-cnode.sh - Manual sync script

Performance:
  - Startup time: 0.1s (49x faster than PyInstaller)
  - Size: ~50KB wrapper vs 8.8MB binary

Commands:
  cnode start [--replicas N]  # Start server/cluster
  cnode status                # Check status
  cnode scale N               # Scale replicas
  cnode logs [-f]             # View logs
  cnode stop                  # Stop server

setup-hooks.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Setup Git hooks for cnode auto-sync
+# Run this once after cloning the repo: ./setup-hooks.sh
+
+set -e
+
+echo "🔧 Setting up Git hooks..."
+
+# Configure Git to use .githooks directory
+git config core.hooksPath .githooks
+
+echo "✅ Git hooks configured!"
+echo ""
+echo "Hooks installed:"
+echo "  • pre-commit: Auto-syncs cnode source → package when committing"
+echo ""
+echo "What this means:"
+echo "  ✅ Edit deploy/docker/cnode_cli.py"
+echo "  ✅ Run: git add deploy/docker/cnode_cli.py"
+echo "  ✅ Run: git commit -m \"update cnode\""
+echo "  ✅ Hook automatically syncs to deploy/installer/cnode_pkg/"
+echo "  ✅ Synced files are auto-staged in the same commit"
+echo ""
+echo "You're all set! 🚀"