refactor: docker image for less final size (#385)

.dockerignore

@@ -1,18 +1,62 @@
+# Environment
 .env
+.env.*
+!.env.example
 
-docker-compose.override.yml
-
-Dockerfile
-./**/*/Dockerfile
-
+# Docker
+docker-compose*.yml
 .dockerignore
 
+# Dependencies (rebuilt in Docker)
 node_modules
-./**/*/node_modules
+**/node_modules
 
+# Build outputs (rebuilt in Docker)
+**/.next
+**/dist
+**/out
+**/.turbo
+**/.cache
+
+# Git
+.git
+.gitignore
+.gitattributes
+
+# IDE
+.vscode
+.idea
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# CI/CD
+.github
+.husky
+.changeset
+
+# Documentation (not needed in build)
+*.md
+!packages/db/migrations/**
+LICENSE
+CONTRIBUTING.md
+AGENTS.md
+CHANGELOG.md
+
+# Test files
+**/*.test.ts
+**/*.test.tsx
+**/*.spec.ts
+**/*.spec.tsx
+**/__tests__
+**/coverage
+
+# Logs
 pnpm-debug.log
-./**/*/pnpm-debug.log
+**/pnpm-debug.log
 
-README.md
-.next
-# .git
+# Cloud compose (separate deployment)
+cloud/