Initial commit: Cloud Instances API

Multi-cloud VM instance database with Cloudflare Workers
- Linode, Vultr, AWS connector integration
- D1 database with regions, instances, pricing
- Query API with filtering, caching, pagination
- Cron-based auto-sync (daily + 6-hourly)
- Health monitoring endpoint

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

.gitignore

@@ -0,0 +1,6 @@
+node_modules/
+dist/
+.wrangler/
+.dev.vars
+*.log
+.DS_Store