feat: Rollenkonzept backend + SOP template (Phase 1-3)

- Migration 111: 3 new tables (org_roles, document_reviews, document_role_mapping)
  with seed data mapping all 71 doc types to 7 compliance roles
- org_role_routes.py: CRUD for roles, seed defaults, test email, mapping API
- document_review_routes.py: Review lifecycle (create→send→approve/reject)
  with approval notification to all affected roles
- Migration 112: SOP template (ISO 9001 structure, 21 placeholders)
- Added standard_operating_procedure to TemplateType, doc-labels, presets

[migration-approved]

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend-compliance/compliance/api/__init__.py

@@ -63,6 +63,8 @@ _ROUTER_MODULES = [
     "tom_mapping_routes",
     "llm_audit_routes",
     "assertion_routes",
+    "org_role_routes",
+    "document_review_routes",
 ]
 
 _loaded_count = 0