feat: add region diversity, HTML report, and transfer pricing

Region Diversity:
- No region specified → same spec from 3 different regions
- Cache key now includes region_preference
- Fixed server_id to use ap.id (pricing) instead of ai.id (instance)

HTML Report:
- New /api/recommend/report endpoint for printable reports
- Supports multi-language (en, ko, ja, zh)
- Displays bandwidth_info with proper KRW formatting

Transfer Pricing:
- bandwidth_info includes overage costs from anvil_transfer_pricing
- available_regions shows alternative regions with prices

Code Quality:
- Extracted region-utils.ts for flexible region matching
- Cleaned up AI prompt (removed obsolete provider references)
- Renamed project to cloud-orchestrator

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

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "server-recommend",
+  "name": "cloud-orchestrator",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",