feat(inventory): enforce high-risk contextual help

tests/test_platform_interface_inventory.py

@@ -169,6 +169,69 @@ class PlatformInterfaceInventoryTests(unittest.TestCase):
             ),
         )
 
+    def test_high_risk_help_baseline_is_validated(self) -> None:
+        with tempfile.TemporaryDirectory() as directory:
+            path = Path(directory) / "help-baseline.json"
+            path.write_text(
+                json.dumps(
+                    {
+                        "schema_version": 1,
+                        "maximum_missing_exact_help": 3,
+                    }
+                ),
+                encoding="utf-8",
+            )
+
+            self.assertEqual(
+                3,
+                inventory._load_high_risk_help_baseline(path)[
+                    "maximum_missing_exact_help"
+                ],
+            )
+            path.write_text(
+                json.dumps(
+                    {
+                        "schema_version": 1,
+                        "maximum_missing_exact_help": -1,
+                    }
+                ),
+                encoding="utf-8",
+            )
+            with self.assertRaisesRegex(ValueError, "non-negative integer"):
+                inventory._load_high_risk_help_baseline(path)
+
+    def test_declaration_strict_mode_rejects_high_risk_help_regression(
+        self,
+    ) -> None:
+        result = {
+            "translation_health": {"missing_catalog_entries": []},
+            "api": {
+                "unclassified_endpoints": [],
+                "stale_endpoint_declarations": [],
+            },
+            "declaration_health": {},
+            "help_health": {
+                "invalid_risk_annotations": [],
+                "unresolved_exact_high_risk_help": [],
+                "high_risk_help_without_german": [],
+                "missing_exact_high_risk_help": [{"id": "example.delete"}],
+                "baseline_maximum_missing": 0,
+                "baseline_regression": True,
+            },
+        }
+
+        self.assertEqual(
+            [
+                "1 high-risk controls lack exact F1 help; baseline permits at most 0"
+            ],
+            inventory._strict_failures(
+                result,
+                check_translations=False,
+                check_endpoints=False,
+                check_declarations=True,
+            ),
+        )
+
     def test_fastapi_route_scanner_includes_router_prefix(self) -> None:
         tree = ast.parse(
             """