feat: initial ImportEx API setup with Hono + Drizzle + PostgreSQL

- Hono server with CORS and logging middleware
- Drizzle ORM with PostgreSQL schema (users table)
- Environment config with Zod validation
- Dockerfile for production deployment
- Gitea Actions workflows for dev/main deployment to Coolify
- Health check route

.gitignore

@@ -0,0 +1,38 @@
+# dependencies (bun install)
+node_modules
+
+# output
+out
+dist
+*.tgz
+
+# code coverage
+coverage
+*.lcov
+
+# logs
+logs
+_.log
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# dotenv environment variable files
+.env
+.env.*
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# drizzle
+drizzle/meta/
+
+# caches
+.eslintcache
+.cache
+*.tsbuildinfo
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store