3ce5a97422
Major refactor from simple HTML/JS app to modern full-stack TypeScript application: ## Architecture Changes - Migrated to monorepo structure with workspaces (backend, frontend, shared) - Backend: Node.js + Express + TypeScript + Socket.IO - Frontend: Next.js 15.5 + React 19 + TypeScript + Tailwind CSS - Shared: Common types and utilities across packages ## Key Features Implemented - Real-time WebSocket collaboration via Socket.IO - Virtual canvas with chunked loading for performance - Modern UI with dark mode and responsive design - Mock database system for easy development (Redis/PostgreSQL compatible) - Comprehensive error handling and rate limiting - User presence and cursor tracking - Infinite canvas support with zoom/pan controls ## Performance Optimizations - Canvas virtualization - only renders visible viewport - Chunked pixel data loading (64x64 pixel chunks) - Optimized WebSocket protocol - Memory-efficient state management with Zustand ## Development Experience - Full TypeScript support across all packages - Hot reload for both frontend and backend - Docker support for production deployment - Comprehensive linting and formatting - Automated development server startup ## Fixed Issues - Corrected start script paths - Updated environment configuration - Fixed ESLint configuration issues - Ensured all dependencies are properly installed - Verified build process works correctly
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# Dependencies
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node_modules/
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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# Production builds
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dist/
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build/
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.next/
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# Environment variables
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.env
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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# Database
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*.db
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*.sqlite
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*.sqlite3
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# Logs
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logs/
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*.log
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# Runtime data
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pids/
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*.pid
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*.seed
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*.pid.lock
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# Coverage directory used by tools like istanbul
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coverage/
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*.lcov
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# nyc test coverage
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.nyc_output
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# Dependency directories
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node_modules/
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jspm_packages/
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# TypeScript cache
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*.tsbuildinfo
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# Optional npm cache directory
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.npm
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# Optional eslint cache
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.eslintcache
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# Microbundle cache
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.rpt2_cache/
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.rts2_cache_cjs/
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.rts2_cache_es/
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.rts2_cache_umd/
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# Optional REPL history
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.node_repl_history
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# Output of 'npm pack'
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*.tgz
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# Yarn Integrity file
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.yarn-integrity
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# dotenv environment variable files
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.env
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.env.development.local
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.env.test.local
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.env.production.local
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.env.local
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# parcel-bundler cache (https://parceljs.org/)
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.cache
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.parcel-cache
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# Next.js build output
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.next
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# Nuxt.js build / generate output
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.nuxt
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dist
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# Gatsby files
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.cache/
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public
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# Storybook build outputs
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.out
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.storybook-out
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# Temporary folders
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tmp/
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temp/
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# Editor directories and files
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.vscode/
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.idea/
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.DS_Store
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*.swp
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*.swo
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*~
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# OS generated files
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Thumbs.db
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ehthumbs.db
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# Docker
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.dockerignore
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# Canvas data (legacy)
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canvas_data.json
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# Redis dumps
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dump.rdb
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# PostgreSQL data
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postgres_data/ |