fix: resolve TypeScript type errors in test files

- Add vitest/globals to tsconfig.json types array to provide type
  definitions for global test functions (describe, it, expect, vi)
- Fix vi.fn type parameter in useDirectorySettings.test.tsx from
  <[], Promise<string>> to <() => Promise<string>>
- Remove unused setMcpConfig import from MSW handlers
- Add type assertions for mock.calls access in McpFormModal tests
  to resolve union type inference issues

This ensures pnpm typecheck passes without errors while maintaining
test functionality with vitest globals: true configuration.

tests/components/McpFormModal.test.tsx

@@ -203,7 +203,7 @@ const renderForm = (props?: Partial<React.ComponentProps<typeof McpFormModal>>)
     fireEvent.click(screen.getByText("common.add"));
 
     await waitFor(() => expect(onSave).toHaveBeenCalledTimes(1));
-    const [id, payload, options] = onSave.mock.calls[0];
+    const [id, payload, options] = (onSave as any).mock.calls[0];
     expect(id).toBe("my-server");
     expect(payload).toMatchObject({
       id: "my-server",
@@ -281,7 +281,7 @@ command = "run"
     fireEvent.click(screen.getByText("common.add"));
 
     await waitFor(() => expect(onSave).toHaveBeenCalledTimes(1));
-    const [id, payload] = onSave.mock.calls[0];
+    const [id, payload] = (onSave as any).mock.calls[0];
     expect(id).toBe("demo");
     expect(payload.server).toEqual({ type: "stdio", command: "run" });
     expect(toastErrorMock).not.toHaveBeenCalled();
@@ -342,7 +342,7 @@ type = "stdio"
     fireEvent.click(screen.getByText("common.save"));
 
     await waitFor(() => expect(onSave).toHaveBeenCalledTimes(1));
-    const [id, entry, options] = onSave.mock.calls[0];
+    const [id, entry, options] = (onSave as any).mock.calls[0];
     expect(id).toBe("existing");
     expect(entry.server.command).toBe("updated");
     expect(entry.enabled).toBe(true);

tests/hooks/useDirectorySettings.test.tsx

@@ -7,7 +7,7 @@ const getAppConfigDirOverrideMock = vi.hoisted(() => vi.fn());
 const getConfigDirMock = vi.hoisted(() => vi.fn());
 const selectConfigDirectoryMock = vi.hoisted(() => vi.fn());
 const setAppConfigDirOverrideMock = vi.hoisted(() => vi.fn());
-const homeDirMock = vi.hoisted(() => vi.fn<[], Promise<string>>());
+const homeDirMock = vi.hoisted(() => vi.fn<() => Promise<string>>());
 const joinMock = vi.hoisted(() => vi.fn(async (...segments: string[]) => segments.join("/")));
 const toastErrorMock = vi.hoisted(() => vi.fn());
 

tests/msw/handlers.ts

@@ -16,7 +16,6 @@ import {
   getAppConfigDirOverride,
   setAppConfigDirOverrideState,
   getMcpConfig,
-  setMcpConfig,
   setMcpServerEnabled,
   upsertMcpServer,
   deleteMcpServer,

tsconfig.json

@@ -17,7 +17,8 @@
     "baseUrl": ".",
     "paths": {
       "@/*": ["src/*"]
-    }
+    },
+    "types": ["vitest/globals"]
   },
   "include": ["src/**/*", "tests/**/*"],
   "references": [{ "path": "./tsconfig.node.json" }]