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

frontend/src/stores/editor.ts

@@ -67,6 +67,7 @@ export const useEditorStore = defineStore('editor', () => {
         if (currentFilePath.value === targetPath) saveStatus.value = 'save_failed'
       } finally {
         pendingSave = null
+        if (currentFilePath.value === targetPath && saveStatus.value === 'dirty') scheduleAutoSave()
       }
     })()
     return pendingSave

frontend/src/stores/editorSave.spec.ts

@@ -0,0 +1,25 @@
+// @vitest-environment happy-dom
+import { createPinia, setActivePinia } from 'pinia'
+import { afterEach, expect, it, vi } from 'vitest'
+import { useEditorStore } from './editor'
+import * as workspace from '@/services/workspaceService'
+
+afterEach(() => { vi.restoreAllMocks(); vi.useRealTimers() })
+
+it('saves text typed while the previous save is still pending', async () => {
+  vi.useFakeTimers()
+  setActivePinia(createPinia())
+  const store = useEditorStore()
+  store.currentFilePath = '/draft.md'
+  let release!: () => void
+  const write = vi.spyOn(workspace, 'saveFileContent').mockImplementationOnce(() => new Promise<void>(resolve => { release = resolve })).mockResolvedValue()
+  store.updateContent('first')
+  const saving = store.save()
+  store.updateContent('latest')
+  release()
+  await saving
+  expect(store.saveStatus).toBe('dirty')
+  await vi.advanceTimersByTimeAsync(1500)
+  expect(write).toHaveBeenLastCalledWith('/draft.md', 'latest')
+  expect(store.saveStatus).toBe('saved')
+})