chore: add .dockerignore to exclude node_modules and build artifacts

.dockerignore

@@ -0,0 +1,51 @@
+# See https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+# Dependencies
+node_modules
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# Build outputs
+.next
+out
+build
+dist
+
+# Testing
+coverage
+test-results
+playwright/.auth/
+
+# Development
+.vscode
+.idea
+*.swp
+*.swo
+*~
+
+# Environment files
+.env*
+!.env.example
+
+# Database
+*.db
+*.db-journal
+prisma/dev.db*
+prisma/prisma/dev.db*
+
+# Git
+.git
+.gitignore
+
+# Docker
+Dockerfile
+docker-compose*.yml
+.dockerignore
+
+# Misc
+.DS_Store
+*.pem
+*.tsbuildinfo
+next-env.d.ts