Add automatic repository update mechanism

[bbernstein]

Summary

This PR adds a comprehensive automatic update mechanism that allows LacyLights to check for and install updates from all three repositories (lacylights-fe, lacylights-node, lacylights-mcp) before launching.

Changes

🔄 update-repos.sh - Core Update Script

• Checks all three repositories for updates from remote origins
• Safely handles uncommitted changes with warnings
• Uses pushd/popd for safe directory navigation
• Automatically installs dependencies when package.json changes
• Rebuilds TypeScript projects after updates
• Multiple modes:
  • --check or -c: Check for updates only
  • --auto or -y: Update automatically without prompting
  • Default: Interactive mode with user prompts

📱 LacyLights.app Integration

• App now automatically checks for updates on launch
• Prompts user to update if new versions are available
• Seamlessly integrates with existing launch flow
• Enhanced terminal output with colors and status messages

🛠️ update.sh - Convenience Wrapper

• Simple command: ./update.sh
• Forwards all arguments to update-repos.sh
• Easy to remember interface

📖 Documentation Updates

• Updated README.md with comprehensive update instructions
• Documents both automated and manual update processes
• Explains macOS app update features

Usage Examples

# Check for updates without installing
./update.sh --check

# Update all repositories (with prompts)
./update.sh

# Update automatically without prompts
./update.sh --auto

Problem Solved

Previously, LacyLights.app used whatever was currently in the directories without checking for newer versions. Now it ensures users always have the latest versions of all three repositories when launching the platform.

Safety Features

• ✅ Detects uncommitted changes and warns users
• ✅ Safe directory navigation with pushd/popd
• ✅ Validates working directory before operations
• ✅ Enhanced error messages with full paths
• ✅ Automatic dependency installation
• ✅ TypeScript project rebuilding

Test Plan

• Script correctly detects updates in all three repositories
• Safe handling of directory navigation
• Proper error handling for missing repositories
• Integration with LacyLights.app launch process
• Update mechanism works with uncommitted changes

🤖 Generated with Claude Code

[Copilot]

Pull Request Overview

This PR adds a comprehensive automatic update mechanism that allows LacyLights to check for and install updates from all three repositories (lacylights-fe, lacylights-node, lacylights-mcp) before launching.

• Implements a new update-repos.sh script with comprehensive repository update capabilities
• Converts the existing update.sh to a simple wrapper that calls update-repos.sh
• Integrates automatic update checking into the macOS app launcher

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 5 comments.

File	Description
update.sh	Simplified to act as a wrapper script that forwards arguments to update-repos.sh
update-repos.sh	New comprehensive script that handles checking and updating all three repositories
README.md	Updated documentation to include new update commands and macOS app features
LacyLights.app/Contents/MacOS/LacyLights	Added automatic update checking functionality to the app launcher

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