Migration 035: tenants table with 'Schaeffler' default seed.
Migration 036: tenant_id FK on all tables, RLS policies, backfill.
New domains/tenants/ with CRUD router (admin only).
All domain models extended with tenant_id FK.
core/database.py: get_db_for_tenant with RLS context setter.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Move all models/schemas/services/routers into app/domains/.
Keep backward-compat shims in old locations for imports.
Preserves domains/rendering/tasks.py from Phase A.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Hartmut