Add «تست اتصال VPN/پروکسی» (reaches a filtered site through the proxy and reports connected/latency) and «تست هوش مصنوعی» (sends a sample post through the configured model and shows the verdict + extracted fields) to admin Settings. Fix OpenAiCompatibleAuditor.ParseVerdict: TryGetInt32/64 threw on null/string JSON values (the model commonly returns payAmount/sharePercent as null), which silently failed every audit — now guarded on ValueKind==Number. Verified the real OpenAI key extracts perfectly (approve / role=پرستار / city=تهران / shift=night).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add AiUseProxy setting + a toggle in the AI settings section. ScrapeHttpClients.ForAi(settings) returns a proxied HttpClient (reusing IngestProxyUrl, 100s timeout) when AiUseProxy is on, otherwise direct; AI-cache keys are protected from the scrape-client cleanup. OpenAiCompatibleAuditor now uses it, so the AI auditor (e.g. api.openai.com) is reachable through the same Xray sidecar that serves Telegram. Migration adds the column.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>