Move db.commit() from services to API endpoints and Celery tasks.
Services now use db.flush() only; endpoints own the transaction.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Migrates scanning pipeline from marketing-.lu-domains app into Orion module.
Supports digital (domain scan) and offline (manual capture) lead channels
with enrichment, scoring, campaign management, and interaction tracking.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
