8FF — Auto-Builder Hourly Trigger

## 8FF Auto-Builder Hourly Trigger

**Trigger:** Cron — jede Stunde zur vollen Stunde
**Flow:**
1. Health-Check GET `/api/workflows/builder/health` (Bearer BUILDER_INTERNAL_TOKEN)
2. IF status=200: Invoke factory-wrapper POST `/api/workflows/factory-wrapper`
3. IF status≠200: NoOp (Skip log)

**ENV:** `VERCEL_BASE_URL`, `BUILDER_INTERNAL_TOKEN`, `N8N_WEBHOOK_SECRET`
**Timeout:** factory-wrapper 290s (nahe n8n-Limit)
**Downstream:** 8ff-workflow-factory (5-Layer QA)
**HINWEIS:** IF-Node typeValidation:loose (n8n-Bug-Workaround 2026-05-05)
**SECURITY:** HMAC-SHA256 auf allen Vercel-API-Calls via X-8FF-Signature + X-8FF-Timestamp (N8N_WEBHOOK_SECRET)