feat(K): Phase K EU Compliance — AI Registry, DPIA, Incident Register, Retention Admin, Tests, Doku

- K-REG: GET /api/v1/compliance/ai-registry — lists all agents with ai_use_case_metadata
- K-DPIA: GET /api/v1/compliance/dpia-template — pre-filled DPIA template export
- K-INC: ComplianceIncident model, Migration 0133 (RLS), CRUD routes (admin-only)
- K-RET: GET/PATCH /api/v1/compliance/retention-policies — 5 policies editable
- K-COMP-TEST: 12/12 integration tests pass
- K-DOC: docs/compliance.md — Betriebsdoku
- Frontend: ComplianceTab.tsx in SettingsAI.tsx (new tab)
- 13 files created/modified

tests/conftest.py

@@ -39,6 +39,7 @@ from app.core.db import Base, close_engine, reset_engine_for_testing
 from app.core.service_container import get_container  # noqa: F401
 from app.main import create_app
 from app.models.ai_conversation import AIConversation, AIMessage  # noqa: F401
+from app.models.compliance import ComplianceIncident  # noqa: F401
 from app.models.contact import Contact, ContactPerson  # noqa: F401
 from app.models.contact_merge import ContactMergeHistory  # noqa: F401
 from app.models.plugin import Plugin, PluginMigration  # noqa: F401