test: add spread+flag axios mock helper to stop CI mock pollution

Bare `mock.module('axios', () => ({ default: { stubs } }))` is
process-global last-write-wins and drops `axios.create`, `request`,
`isAxiosError`, etc. that real consumers need. In CI's alphabetical
file order, that produces dozens of polluted failures (AgentsPlatformView,
schedule API, memory-stores API, etc.) that don't reproduce on WSL2.

Introduce `tests/mocks/axios.ts` with `setupAxiosMock()` — `require('axios')`
inside the factory, spread real shape, route each verb through a per-suite
`useStubs` flag. beforeAll flips on, afterAll flips off; the spread
fall-through eliminates cross-file leakage.

Refactored 12 axios mockers in tests/, plus the bare `@anthropic/ink` mocks
in ultrareviewCommand and onboarding suites (same pollution pattern broke
AgentsPlatformView's Box/Text rendering).

Verified: 5339/5345 tests pass locally; remaining 6 failures are
pre-existing isolation issues unrelated to this change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/builtin-tools/src/tools/RemoteTriggerTool/__tests__/RemoteTriggerTool.test.ts

@@ -1,17 +1,31 @@
-import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test'
+import {
+  afterAll,
+  afterEach,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  mock,
+  test,
+} from 'bun:test'
 import { authMock } from '../../../../../../tests/mocks/auth'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
 
 let requestStatus = 200
 const auditRecords: Record<string, unknown>[] = []
 
-mock.module('axios', () => ({
-  default: {
-    request: async () => ({
-      status: requestStatus,
-      data: { ok: requestStatus >= 200 && requestStatus < 300 },
-    }),
-  },
-}))
+const axiosHandle = setupAxiosMock()
+axiosHandle.stubs.request = async () => ({
+  status: requestStatus,
+  data: { ok: requestStatus >= 200 && requestStatus < 300 },
+})
+
+beforeAll(() => {
+  axiosHandle.useStubs = true
+})
+afterAll(() => {
+  axiosHandle.useStubs = false
+})
 
 mock.module('src/utils/auth.js', authMock)
 

packages/builtin-tools/src/tools/VaultHttpFetchTool/__tests__/VaultHttpFetchTool.test.ts

@@ -1,18 +1,27 @@
 import {
   afterAll,
   afterEach,
+  beforeAll,
   beforeEach,
   describe,
   expect,
   mock,
   test,
 } from 'bun:test'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
 
 // After this suite finishes, switch our getSecret override off so localVault's
-// own store.test.ts (running in the same process) sees the real impl.
+// own store.test.ts (running in the same process) sees the real impl. Also
+// flip the axios stub flag off so the spread mock falls through to real axios
+// for any test file that runs after this one.
 afterAll(() => {
   useMockForGetSecret = false
   getSecretShouldThrow = false
+  axiosHandle.useStubs = false
+})
+
+beforeAll(() => {
+  axiosHandle.useStubs = true
 })
 
 // We mock the LOWER layers (axios + localVault store + http util) rather
@@ -34,9 +43,8 @@ const mockAxiosRequest = mock(
   }),
 )
 
-mock.module('axios', () => ({
-  default: { request: mockAxiosRequest },
-}))
+const axiosHandle = setupAxiosMock()
+axiosHandle.stubs.request = mockAxiosRequest
 
 let mockedSecret: string | null = 'XSECRETXX'
 let getSecretShouldThrow = false

packages/builtin-tools/src/tools/WebFetchTool/__tests__/headers.test.ts

@@ -1,5 +1,14 @@
-import { beforeEach, describe, expect, mock, test } from 'bun:test'
+import {
+  afterAll,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  mock,
+  test,
+} from 'bun:test'
 import { logMock } from '../../../../../../tests/mocks/log'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
 
 type MockAxiosResponse = {
   data: ArrayBuffer
@@ -18,17 +27,12 @@ type MockAxiosError = Error & {
 
 let getMock: (url: string) => Promise<MockAxiosResponse>
 
-mock.module('axios', () => {
-  const axiosMock = {
-    get: (url: string) => getMock(url),
-    isAxiosError: (error: unknown): error is MockAxiosError =>
-      typeof error === 'object' &&
-      error !== null &&
-      (error as { isAxiosError?: unknown }).isAxiosError === true,
-  }
-
-  return { default: axiosMock }
-})
+const axiosHandle = setupAxiosMock()
+axiosHandle.stubs.get = (url: string) => getMock(url)
+axiosHandle.stubs.isAxiosError = (error: unknown): boolean =>
+  typeof error === 'object' &&
+  error !== null &&
+  (error as { isAxiosError?: unknown }).isAxiosError === true
 
 mock.module('src/services/analytics/index.js', () => ({
   logEvent: () => {},
@@ -67,6 +71,14 @@ beforeEach(() => {
   })
 })
 
+beforeAll(() => {
+  axiosHandle.useStubs = true
+})
+
+afterAll(() => {
+  axiosHandle.useStubs = false
+})
+
 describe('WebFetch response headers', () => {
   test('reads redirect Location from AxiosHeaders-style get()', async () => {
     getMock = async () => {

packages/builtin-tools/src/tools/WebSearchTool/__tests__/bingAdapter.test.ts

@@ -1,4 +1,12 @@
-import { describe, expect, mock, test } from 'bun:test'
+import { afterAll, describe, expect, mock, test } from 'bun:test'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
+
+// Each test below calls `mock.module('axios', ...)` per-test. Re-register a
+// spread-real axios mock at end-of-file so the per-test stubs do not leak
+// into subsequent test files (mock.module is process-global, last-write-wins).
+afterAll(() => {
+  setupAxiosMock()
+})
 
 const _abortMock = () => ({
   AbortError: class AbortError extends Error {

packages/builtin-tools/src/tools/WebSearchTool/__tests__/braveAdapter.test.ts

@@ -1,4 +1,22 @@
-import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test'
+import {
+  afterAll,
+  afterEach,
+  beforeEach,
+  describe,
+  expect,
+  mock,
+  test,
+} from 'bun:test'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
+
+// Each test below calls `mock.module('axios', ...)` per-test. Without an
+// afterAll cleanup, the LAST per-test stub leaks into every test file that
+// runs after this one (mock.module is process-global, last-write-wins). The
+// spread-real mock registered here at the end re-routes axios to the real
+// module, undoing the stub leakage so later suites see real axios.
+afterAll(() => {
+  setupAxiosMock()
+})
 
 // Defensive mock: agent.test.ts mocks config.js which can corrupt Bun's
 // src/* path alias resolution. Provide AbortError directly so the dynamic

packages/builtin-tools/src/tools/WebSearchTool/__tests__/exaAdapter.test.ts

@@ -1,4 +1,12 @@
-import { afterEach, describe, expect, mock, test } from 'bun:test'
+import { afterAll, afterEach, describe, expect, mock, test } from 'bun:test'
+import { setupAxiosMock } from '../../../../../../tests/mocks/axios'
+
+// Each test below calls `mock.module('axios', ...)` per-test. Re-register a
+// spread-real axios mock at end-of-file so the per-test stubs do not leak
+// into subsequent test files (mock.module is process-global, last-write-wins).
+afterAll(() => {
+  setupAxiosMock()
+})
 
 const _abortMock = () => ({
   AbortError: class AbortError extends Error {