Merge lane/abrechnung in feature/craftvia-mvp

Konflikte gelöst (additiv): Benachrichtigungstexte (Planung + Meilensteine), Event-Typen,
Navigation, Job-Queues/Prozessoren (geocode-site, planning-watch, billing-pdf), OpenAPI-Tags,
Smoke-Prüfungen (zweiter Mandant: Planung + Abrechnung).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/server/jobs/processors/index.ts

@@ -15,6 +15,7 @@ export const PROCESSORS: Partial<Record<JobQueueName, () => Promise<JobProcessor
   "ai-retention": () => import("./ai-retention").then((m) => m.process), // L10b: daily AI log retention (scheduled by the worker)
   "geocode-site": () => import("./geocode-site").then((m) => m.process), // L13: geocoding of sites (OSM Nominatim)
   "planning-watch": () => import("./planning-watch").then((m) => m.process), // L13: delay/overrun/freed-capacity alerts (every 5 min)
+  "billing-pdf": () => import(/* turbopackIgnore: true */ "./billing-pdf").then((m) => m.process), // L14: worker-only billing sheet PDF (react-dom/server + Chromium)
 };
 
 /** Inline fallback when no Redis is available (dev/demo). */