Fixes #7743

/claim #7743

Changes

• Set longer stream proxy timeouts in StartDatabaseProxy generated nginx.conf
  • proxy_connect_timeout 60s;
  • proxy_timeout 12h;

Category

• Fix
• Feature
• Refactor
• Docs

AI Assistance

• Yes
  • Drafted and implemented with AI assistance; reviewed the final diff manually.

Testing

• Not run (CI only)
• Not applicable / config-only change

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