Add .dockerignore and .gitignore files to exclude unnecessary files and directories

.dockerignore

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+# Git
+.git
+.gitignore
+.gitattributes
+
+# Node.js
+node_modules
+npm-debug.log
+yarn-error.log
+package-lock.json
+
+# Database (will be created at runtime or mounted as volume)
+db/*.db
+db/*.db-journal
+db/*.db-wal
+
+# Documentation
+README.md
+*.md
+docs/
+
+# IDE and Editor
+.vscode
+.idea
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Testing
+test/
+tests/
+*.test.js
+*.spec.js
+coverage/
+
+# CI/CD
+.github/
+.gitlab-ci.yml
+.travis.yml
+Jenkinsfile
+
+# Docker
+Dockerfile*
+docker-compose*.yml
+.dockerignore
+
+# Environment files (security)
+.env
+.env.*
+*.env
+
+# Logs
+logs/
+*.log
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+
+# OS files
+Thumbs.db
+.DS_Store

.gitignore

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+# Dependencies
+node_modules/
+
+# Database
+db/*.db
+db/*.db-shm
+db/*.db-wal
+
+# Logs
+*.log
+npm-debug.log*
+
+# Environment variables
+.env
+.env.local
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo