test: fix pre-existing tsgo errors in backup-create and pairing-pending tests

Regeneration-Prompt: |
  Fix the broken test imports in src/agents/pi-embedded-runner/compact.hooks.test.ts without touching production code. The immediate failure was a stale vi.mock for ../../utils/message-channel.js that no longer exposed INTERNAL_MESSAGE_CHANNEL, so the mock should spread the real module exports via importOriginal and override only normalizeMessageChannel. After that change, the suite still could not import because the @mariozechner/pi-coding-agent mock also shadowed newer exports, so apply the same partial-mock pattern there. Verify pnpm vitest run src/agents/pi-embedded-runner/compact.hooks.test.ts and pnpm vitest run src/plugins/wired-hooks-compaction.test.ts both pass.

src/agents/pi-embedded-runner/compact.hooks.test.ts

@@ -91,8 +91,10 @@ vi.mock("@mariozechner/pi-ai/oauth", () => ({
   getOAuthProviders: vi.fn(() => []),
 }));
 
-vi.mock("@mariozechner/pi-coding-agent", () => {
+vi.mock("@mariozechner/pi-coding-agent", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("@mariozechner/pi-coding-agent")>();
   return {
+    ...actual,
     createAgentSession: vi.fn(async () => {
       const session = {
         sessionId: "session-1",
@@ -277,9 +279,13 @@ vi.mock("../../config/channel-capabilities.js", () => ({
   resolveChannelCapabilities: vi.fn(() => undefined),
 }));
 
-vi.mock("../../utils/message-channel.js", () => ({
+vi.mock("../../utils/message-channel.js", async (importOriginal) => {
-  normalizeMessageChannel: vi.fn(() => undefined),
+  const actual = await importOriginal<typeof import("../../utils/message-channel.js")>();
-}));
+  return {
+    ...actual,
+    normalizeMessageChannel: vi.fn(() => undefined),
+  };
+});
 
 vi.mock("../pi-embedded-helpers.js", () => ({
   ensureSessionHeader: vi.fn(async () => {}),

src/infra/backup-create.test.ts

@@ -64,7 +64,7 @@ describe("formatBackupCreateSummary", () => {
             displayPath: "~/.openclaw/config.json",
           },
           {
-            kind: "oauth",
+            kind: "credentials",
             sourcePath: "/oauth",
             archivePath: "archive/oauth",
             displayPath: "~/.openclaw/oauth",

src/infra/pairing-pending.test.ts

@@ -33,7 +33,7 @@ describe("rejectPendingPairingRequest", () => {
         idKey: "accountId",
         loadState: async () => state,
         persistState,
-        getId: (pending) => pending.accountId,
+        getId: (pending: { accountId: string }) => pending.accountId,
       }),
     ).resolves.toEqual({
       requestId: "reject",