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║            Gemini API Connection Test                      ║
║            Using Vertex AI + OAuth                         ║
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🔐 Getting OAuth access token...
✓ OAuth token obtained
  Token: ya29.c.c0AZ4bNpY1Q01...

🔄 Testing connection to Gemini 2.5 Flash via Vertex AI...

Response received in 1335.79ms
HTTP Status Code: 200

✅ SUCCESS! API is working correctly.

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Sample Generated Content:
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Artificial intelligence is revolutionizing businesses by streamlining operations, boosting efficiency, and uncovering powerful new insights. Embrace AI to unlock unprecedented growth and drive your company into a future of innovation!
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📊 Connection Info:
  Model: gemini-2.5-flash (Vertex AI)
  Max tokens: 65000
  Response time: 1335.79ms
  Total time: 1334.71ms

✓ Your setup is ready!
  Run: php generate-social-ads.php