CI/CD:
- Fix build_args format in woodpecker CI (comma-separated, not YAML list)
- This fixes "unknown" SHA/version showing on remote deployments
Backend schema-tolerant fixes (graceful fallbacks when tables missing):
- users.ts: Check which columns exist before querying
- worker-registry.ts: Return empty result if table doesn't exist
- task-service.ts: Add tableExists() helper, handle missing tables/views
- proxies.ts: Return totalProxies in test-all response
Frontend fixes:
- Proxies: Use total from response for accurate progress display
- SEO PagesTab: Dim Generate button when no AI provider active
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>