feat(sdk): API-Referenz Frontend + Backend-Konsolidierung (Shared Utilities, CRUD Factory)

- API-Referenz Seite (/sdk/api-docs) mit ~690 Endpoints, Suche, Filter, Modul-Index
- Shared db_utils.py (row_to_dict) + tenant_utils Integration in 6 Route-Dateien
- CRUD Factory (crud_factory.py) fuer zukuenftige Module
- Version-Route Auto-Registration in versioning_utils.py
- 1338 Tests bestanden, -232 Zeilen Duplikat-Code

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-compliance/tests/test_legal_template_routes.py

@@ -10,13 +10,13 @@ from fastapi import FastAPI
 from compliance.api.legal_template_routes import (
     LegalTemplateCreate,
     LegalTemplateUpdate,
-    _row_to_dict,
-    _get_tenant_id,
-    DEFAULT_TENANT_ID,
     VALID_DOCUMENT_TYPES,
     VALID_STATUSES,
     router,
 )
+from compliance.api.db_utils import row_to_dict as _row_to_dict
+
+DEFAULT_TENANT_ID = "9282a473-5c95-4b3a-bf78-0ecc0ec71d3e"
 from classroom_engine.database import get_db
 
 app = FastAPI()
@@ -205,22 +205,6 @@ class TestLegalTemplateDB:
         assert isinstance(result["placeholders"], list)
         assert "{{COMPANY_NAME}}" in result["placeholders"]
 
-    def test_get_tenant_id_default(self):
-        """_get_tenant_id returns default when no header provided."""
-        result = _get_tenant_id(None)
-        assert result == DEFAULT_TENANT_ID
-
-    def test_get_tenant_id_valid_uuid(self):
-        """_get_tenant_id returns provided UUID when valid."""
-        custom_uuid = "12345678-1234-1234-1234-123456789abc"
-        result = _get_tenant_id(custom_uuid)
-        assert result == custom_uuid
-
-    def test_get_tenant_id_invalid_uuid(self):
-        """_get_tenant_id falls back to default for invalid UUID."""
-        result = _get_tenant_id("not-a-uuid")
-        assert result == DEFAULT_TENANT_ID
-
 
 # =============================================================================
 # TestLegalTemplateSearch