- Add POST /api/residences/:id/generate-share-package/ endpoint - Add SharePackageResponse DTO with share code and metadata - Add GenerateSharePackage service method to create one-time share codes - Update JoinWithCode to deactivate share code after successful use 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>