fix: align exec tool config and test timeouts

src/commands/doctor.falls-back-legacy-sandbox-image-missing.test.ts

@@ -55,6 +55,7 @@ beforeEach(() => {
     killed: false,
   });
   ensureAuthProfileStore.mockReset().mockReturnValue({ version: 1, profiles: {} });
+  loadClawdbotPlugins.mockReset().mockReturnValue({ plugins: [], diagnostics: [] });
   migrateLegacyConfig.mockReset().mockImplementation((raw: unknown) => ({
     config: raw as Record<string, unknown>,
     changes: ["Moved routing.allowFrom → channels.whatsapp.allowFrom."],
@@ -131,6 +132,7 @@ const runCommandWithTimeout = vi.fn().mockResolvedValue({
 });
 
 const ensureAuthProfileStore = vi.fn().mockReturnValue({ version: 1, profiles: {} });
+const loadClawdbotPlugins = vi.fn().mockReturnValue({ plugins: [], diagnostics: [] });
 
 const legacyReadConfigFileSnapshot = vi.fn().mockResolvedValue({
   path: "/tmp/clawdbot.json",
@@ -173,9 +175,8 @@ vi.mock("../agents/skills-status.js", () => ({
 }));
 
 vi.mock("../plugins/loader.js", () => ({
-  loadClawdbotPlugins: () => ({ plugins: [], diagnostics: [] }),
+  loadClawdbotPlugins,
 }));
-
 vi.mock("../config/config.js", async (importOriginal) => {
   const actual = await importOriginal();
   return {