feat: ACN Application Security Standard V7.30 compliance (19/23 items)

CRITICAL — Authentication & Access:
- TOTP MFA: otpauth-based, QR setup UI, sign-in flow integration,
  admin disable override, /account/security self-service page
- Session Timeouts: 8h absolute (maxAge), 30min idle (updateAge)
- Failed Auth Logging: Pino warn for invalid password/user/totp,
  info for successful login, audit entries for all auth events
- Concurrent Session Limit: ActiveSession model, oldest-kick strategy,
  max 3 per user (configurable in SystemSettings)

CRITICAL — HTTP Security:
- HSTS: max-age=31536000; includeSubDomains
- CSP: script/style/img/font/connect-src with Gemini/OpenAI whitelist
- X-XSS-Protection: 0 (CSP replaces legacy)
- Auth page cache: no-store, no-cache, must-revalidate
- Rate Limiting: 100/15min general API, 5/15min auth (Map-based)

Data Protection:
- XSS Sanitization: DOMPurify on comment bodies
- autocomplete="new-password" on all password/secret fields
- SameSite=Strict on all cookies (Credentials-only, no OAuth)
- File Upload Magic Bytes validation (PNG/JPEG/WebP/GIF/BMP/TIFF)

Logging & Monitoring:
- Login/Logout audit entries (Auth entityType)
- External API call logging with timing (OpenAI, Gemini)
- Input validation failure logging at warn level
- Concurrent session tracking in ActiveSession table

Documentation:
- docs/security-architecture.md (11 sections)
- docs/sdlc.md (CI pipeline, security gates, incident response)
- .gitea/PULL_REQUEST_TEMPLATE.md (security checklist)

Schema: User.totpSecret/totpEnabled, SystemSettings.sessionMaxAge/
sessionIdleTimeout/maxConcurrentSessions, ActiveSession model

Tests: 310 engine + 37 staffing pass. TypeScript clean.

Co-Authored-By: claude-flow <ruv@ruv.net>

packages/api/src/gemini-client.ts

@@ -1,3 +1,5 @@
+import { logger } from "./lib/logger.js";
+
 type GeminiSettings = {
   geminiApiKey?: string | null;
   geminiModel?: string | null;
@@ -18,6 +20,7 @@ export async function generateGeminiImage(
   model = "gemini-2.5-flash-image",
 ): Promise<string> {
   const fullPrompt = `Generate a professional, cinematic cover image for a 3D production project. ${prompt}`;
+  const start = performance.now();
 
   const response = await fetch(
     `https://generativelanguage.googleapis.com/v1beta/models/${model}:generateContent?key=${apiKey}`,
@@ -32,6 +35,7 @@ export async function generateGeminiImage(
   );
 
   if (!response.ok) {
+    const responseTimeMs = Math.round(performance.now() - start);
     const body = await response.text();
     let msg = body;
     try {
@@ -40,6 +44,7 @@ export async function generateGeminiImage(
     } catch {
       /* keep raw */
     }
+    logger.warn({ provider: "gemini", model, promptLength: fullPrompt.length, responseTimeMs, status: response.status }, "External API call failed");
     throw new Error(`HTTP ${response.status}: ${msg}`);
   }
 
@@ -62,6 +67,9 @@ export async function generateGeminiImage(
     throw new Error("No image data returned from Gemini");
   }
 
+  const responseTimeMs = Math.round(performance.now() - start);
+  logger.info({ provider: "gemini", model, promptLength: fullPrompt.length, responseTimeMs }, "External API call");
+
   const base64 = imagePart.inlineData.data;
   const mimeType = imagePart.inlineData.mimeType ?? "image/png";
   return `data:${mimeType};base64,${base64}`;