docs(cases): complete German reference coverage

tests/test_interface_documentation_contract.py

@@ -10,6 +10,14 @@ REPO_ROOT = Path(__file__).resolve().parents[1]
 
 
 class CasesInterfaceDocumentationContractTests(unittest.TestCase):
+    def test_all_static_topics_have_complete_german_content(self) -> None:
+        for topic in get_manifest().documentation:
+            german = (topic.translations or {}).get("de", {})
+            self.assertEqual({"title", "summary", "body"}, set(german), topic.id)
+            self.assertTrue(
+                all(str(value).strip() for value in german.values()), topic.id
+            )
+
     def test_backend_surfaces_and_hierarchy_remain_declared(self) -> None:
         frontend = get_manifest().frontend
         self.assertIsNotNone(frontend)
@@ -53,15 +61,16 @@ class CasesInterfaceDocumentationContractTests(unittest.TestCase):
         self.assertIn("update_case", reference.metadata["consequence_classes"])
         self.assertIn("close_case", reference.metadata["consequence_classes"])
         self.assertIn("change_access", reference.metadata["consequence_classes"])
+        self.assertEqual("reference", reference.metadata["kind"])
         self.assertIn(
             "link_owner_reference",
             owner_links.metadata["consequence_classes"],
         )
 
     def test_webui_uses_shared_help_guard_and_confirmation_components(self) -> None:
-        list_page = (
-            REPO_ROOT / "webui/src/features/cases/CasesPage.tsx"
-        ).read_text(encoding="utf-8")
+        list_page = (REPO_ROOT / "webui/src/features/cases/CasesPage.tsx").read_text(
+            encoding="utf-8"
+        )
         detail_page = (
             REPO_ROOT / "webui/src/features/cases/CaseDetailPage.tsx"
         ).read_text(encoding="utf-8")