Fix Google model driver to apply custom base URLs in RAGFlow

{
  "event_id": "event_3df6100c2326f56b",
  "topic_id": "consumer_ai_applications",
  "event_type": "Bug Fix",
  "event_time": "2026-06-01T11:24:29Z",
  "title": "Fix Google model driver to apply custom base URLs in RAGFlow",
  "summary": "RAGFlow's Google model driver now correctly applies custom base URLs when creating instances, allowing developers to route API traffic through configured regional or private endpoints instead of failing silently.",
  "contribution": "Enables correct custom base URL resolution for Google model driver instances with region and default fallback support",
  "impact": "Developers integrating RAGFlow with Google models can now route API calls through custom endpoints, regional proxies, or private gateways without the driver silently ignoring their configuration. This fixes a silent failure where custom base URL settings were dropped, meaning teams in restricted networks or using cost-optimized regional routing can actually apply their intended configuration. Watch for edge cases in base URL fallback behavior across different Google API regions.",
  "maturity": "Code",
  "confidence": 0,
  "importance_score": 0.72,
  "risk_flags": [
    "Upstream Test Failure From Duplicate Helpers"
  ],
  "evidence_count": 1
}