refactor: move extension-owned tests to extensions

extensions/feishu/package-manifest.contract.test.ts

@@ -0,0 +1,7 @@
+import { describePackageManifestContract } from "../../test/helpers/extensions/package-manifest-contract.js";
+
+describePackageManifestContract({
+  pluginId: "feishu",
+  runtimeDeps: ["@larksuiteoapi/node-sdk"],
+  minHostVersionBaseline: "2026.3.22",
+});

extensions/feishu/src/registry-backed.contract.test.ts

@@ -0,0 +1,7 @@
+import {
+  describeChannelRegistryBackedContracts,
+  describeSessionBindingRegistryBackedContract,
+} from "../../../test/helpers/channels/registry-backed-contract.js";
+
+describeChannelRegistryBackedContracts("feishu");
+describeSessionBindingRegistryBackedContract("feishu");

extensions/feishu/src/session-binding.contract.test.ts

@@ -0,0 +1,4 @@
+import { describeSessionBindingContractCoverage } from "../../../test/helpers/channels/session-binding-contract.js";
+import { feishuSessionBindingAdapterChannels } from "../api.js";
+
+describeSessionBindingContractCoverage(feishuSessionBindingAdapterChannels);