Phase 5: Docker e Deploy Config

- Dockerfile multi-stage:
  * Build com pnpm + Prisma generate
  * Production com Node.js 22 alpine
  * Non-root user (nextjs:nodejs)
  * Standalone output

- next.config.ts: output standalone
- .dockerignore: excludes node_modules, .env, .next, etc

Ready para deploy EasyPanel com:
- Port 3000
- ENV: DATABASE_URL, NODE_ENV=production
- Build: Nixpacks ou Dockerfile

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,52 @@
+# dependencies
+node_modules
+.pnp
+.pnp.js
+
+# testing
+coverage
+
+# next.js
+.next/
+out/
+build
+dist
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# git
+.git
+.gitignore
+
+# IDE
+.vscode
+.idea
+
+# docker
+Dockerfile
+.dockerignore
+
+# README
+README.md