fix: reconcile untouched drafts during discovery refresh

src/renderer/src/lib/workspace-creation-drafts/creation-draft-session.test.ts

@@ -125,3 +125,28 @@ it('discovers other-window drafts on refresh without replacing local edits', asy
   expect(useCreationDraftSession.getState().entries['create-1'].buffer.text).toBe('local text')
   expect(useCreationDraftSession.getState().entries['create-2'].buffer.text).toBe('new draft')
 })
+
+it('reconciles external draft replacement without accumulating removed records', async () => {
+  for (let generation = 0; generation < 3; generation++) {
+    database.listDrafts.mockResolvedValue(
+      Array.from({ length: 64 }, (_, index) => ({
+        ...draft('external', `${generation}-${index}`),
+        revision: 1
+      }))
+    )
+    await loadCreationDrafts(true)
+    expect(Object.keys(useCreationDraftSession.getState().entries)).toHaveLength(64)
+  }
+})
+
+it('preserves the open recovered draft when another writer deletes it', async () => {
+  database.listDrafts.mockResolvedValue([{ ...draft('keep open'), revision: 1 }])
+  await loadCreationDrafts()
+  useCreationDraftSession.setState({ viewedDraftId: 'create-1' })
+  database.listDrafts.mockResolvedValue([])
+  await loadCreationDrafts(true)
+  expect(useCreationDraftSession.getState().entries['create-1'].buffer.text).toBe('keep open')
+  useCreationDraftSession.setState({ viewedDraftId: null })
+  await loadCreationDrafts(true)
+  expect(useCreationDraftSession.getState().entries).toEqual({})
+})

src/renderer/src/lib/workspace-creation-drafts/creation-draft-session.ts

@@ -54,8 +54,16 @@ export function loadCreationDrafts(refresh = false): Promise<void> {
     .then((drafts) => {
       useCreationDraftSession.setState((state) => {
         const entries = { ...state.entries }
+        const storedIds = new Set(drafts.map((draft) => draft.id))
+        const isUntouched = (id: string): boolean =>
+          entries[id]?.editVersion === 0 && state.viewedDraftId !== id
+        for (const id of Object.keys(entries)) {
+          if (!storedIds.has(id) && isUntouched(id)) {
+            delete entries[id]
+          }
+        }
         for (const draft of drafts) {
-          if (!entries[draft.id]) {
+          if (!entries[draft.id] || isUntouched(draft.id)) {
             entries[draft.id] = fromStored(draft)
           }
         }