BETA OBSERVABILITY (P7 Task 4)
Key measurement emits now also write to Firebase 'measurements' collection (via extended emitMeasurement in creator-data-service + editor paths for errors/drop-off/stego patterns). Console logs always active.
• error:* / drop-off:* / stego:embed|extract|ai — logged on emit
• Recent beta events surface here if Firestore read rules permit (otherwise inspect console + Firebase console for aggregates: count by domain/action, last 24h stego usage, error rates).
Lightweight only — console + writes. Full agg in Firebase UI or future /api.