feat: Complete Smart Resume Formatter with R2 and Gemini AI integration

- Integrated Cloudflare R2 for template storage and converted file management
- Added Google Gemini AI for resume parsing and HTML generation
- Created backend API endpoints for templates, conversion, and history
- Refactored frontend to use real API instead of mock data
- Fixed Docker networking issues (IPv6/IPv4) for R2 connectivity
- Added resumeService.ts for frontend API integration
- Updated Vite configuration for proper asset serving in Docker
- Successfully tested with 13 templates from R2 bucket

test_r2_connection.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+"""
+Quick test script to verify R2 connection and list templates
+Run this to test if R2 credentials are working before Docker build
+"""
+import os
+import sys
+from dotenv import load_dotenv
+
+# Load environment variables
+load_dotenv()
+
+# Add backend to path
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'backend'))
+
+try:
+    from app.services.r2_service import r2_service
+    
+    print("🔍 Testing Cloudflare R2 Connection...\n")
+    
+    # Test 1: List templates
+    print("📝 Test 1: Listing templates from R2...")
+    templates = r2_service.list_templates()
+    
+    if templates:
+        print(f"✅ SUCCESS! Found {len(templates)} template(s):")
+        for template in templates:
+            print(f"   - {template}")
+    else:
+        print("⚠️  No templates found (this might be expected if bucket is empty)")
+    
+    print("\n" + "="*50 + "\n")
+    
+    # Test 2: List converted resumes
+    print("📄 Test 2: Listing converted resumes from R2...")
+    resumes = r2_service.list_converted_resumes(limit=5)
+    
+    if resumes:
+        print(f"✅ SUCCESS! Found {len(resumes)} resume(s):")
+        for resume in resumes[:5]:  # Show first 5
+            print(f"   - {resume['name']} ({resume['size']} bytes)")
+    else:
+        print("⚠️  No converted resumes found (this might be expected)")
+    
+    print("\n" + "="*50 + "\n")
+    print("✅ R2 Connection Test Complete!")
+    print("\nYou can now run: docker-compose up --build")
+    
+except ImportError as e:
+    print(f"❌ Import Error: {e}")
+    print("\nThis is expected if you haven't installed backend dependencies yet.")
+    print("Docker will handle this automatically during build.")
+    
+except Exception as e:
+    print(f"❌ Error: {e}")
+    print("\nCheck your R2 credentials in .env file")
+    sys.exit(1)