feat(docker): enable containerization of marketplace scraper

Introduce Dockerfile with production build using Bun, .dockerignore for efficient builds, and docker-compose.yml for easy local and prod deployment on port 3000.

.dockerignore

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+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+bun.sum
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+jspm_packages/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+public
+
+# Vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# IDE and editor files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Git
+.git
+.gitignore
+
+# Docker
+Dockerfile*
+.dockerignore
+
+# Documentation
+README.md
+docs/
+
+# Test files
+test/
+tests/
+*.test.js
+*.test.ts
+*.spec.js
+*.spec.ts
+
+# Development files
+CLAUDE.md
+devenv.*
+*.log
+
+# Runtime cookies/config
+cookies/

Dockerfile

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+# Use the official Bun base image
+FROM oven/bun:latest AS base
+
+# Set the working directory
+WORKDIR /app
+
+# Copy package files
+COPY package.json bun.lock* ./
+
+# Install dependencies
+RUN bun install --frozen-lockfile
+
+# Copy source code
+COPY src ./src
+COPY tsconfig.json ./
+
+# Build the application for production
+RUN bun build ./src/index.ts --outdir ./dist --minify
+
+# Multi-stage build - runtime stage
+FROM oven/bun:latest AS runtime
+
+WORKDIR /app
+
+# Copy the built application from the base stage
+COPY --from=base /app/dist/ ./
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Start the application
+CMD ["bun", "index.js"]

docker-compose.yml

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+services:
+  marketplace-scraper:
+    build: .
+    ports:
+      - "4005:4005"
+    environment:
+      - NODE_ENV=production
+      - PORT=4005
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:4005/api/status"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 5s
+    restart: unless-stopped