fix(workspace): background vector indexing and correct diagram previews

frontend/src/services/apiClient.spec.ts

@@ -0,0 +1,26 @@
+// @vitest-environment happy-dom
+import { afterEach, expect, it, vi } from 'vitest'
+import apiClient from './apiClient'
+
+afterEach(() => { vi.useRealTimers(); vi.unstubAllGlobals() })
+
+it('aborts a stuck request with an actionable timeout', async () => {
+  vi.useFakeTimers()
+  let signal: AbortSignal | undefined
+  vi.stubGlobal('fetch', vi.fn((_url, options) => new Promise((_resolve, reject) => {
+    signal = options.signal
+    signal?.addEventListener('abort', () => reject(new Error('aborted')))
+  })))
+  const assertion = expect(apiClient.get('/api/workspace', { timeoutMs: 15000 })).rejects.toMatchObject({ code: 'REQUEST_TIMEOUT' })
+  await vi.advanceTimersByTimeAsync(15000)
+  await assertion
+  expect(signal?.aborted).toBe(true)
+  expect(vi.getTimerCount()).toBe(0)
+})
+
+it('clears the deadline after success', async () => {
+  vi.useFakeTimers()
+  vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('{"ok":true}', { headers: { 'Content-Type': 'application/json' } })))
+  expect(await apiClient.get('/health', { timeoutMs: 10000 })).toEqual({ ok: true })
+  expect(vi.getTimerCount()).toBe(0)
+})