fix: verify Cursor chat store before reopen (#1037)

* test: reproduce issue #841

* test: cover Cursor chat store discovery

* fix: verify Cursor chat store before resume (closes #841)

* test: preserve non-Cursor resume behavior

* test: cover conservative Cursor resume gating

* fix: gate Cursor reopen until store verification

* test: cover legacy Cursor drawer fallback

* fix: scan unique legacy Cursor store drawer

* test: preserve raw Cursor workspace path hashing

* fix: hash raw Cursor workspace path

* test: pin Cursor probe owner and machine

* fix: probe Cursor store on recorded owner

* test: normalize Cursor probe owner home

* fix: normalize Cursor probe owner home

shared/src/apiTypes.ts

@@ -119,6 +119,13 @@ export const ReopenSessionMissingMetadataResponseSchema = z.object({
 
 export type ReopenSessionMissingMetadataResponse = z.infer<typeof ReopenSessionMissingMetadataResponseSchema>
 
+export const CursorChatStoreStatusSchema = z.object({
+    onDisk: z.boolean(),
+    store: z.enum(['legacy', 'acp']).nullable()
+})
+
+export type CursorChatStoreStatus = z.infer<typeof CursorChatStoreStatusSchema>
+
 export const SessionCollaborationModeRequestSchema = z.object({
     mode: CodexCollaborationModeSchema
 })

shared/src/rpcMethods.ts

@@ -10,6 +10,7 @@ export const RPC_METHODS = {
     StopRunner: 'stop-runner',
     ListMachineDirectory: 'list-directory',
     PathExists: 'path-exists',
+    CursorChatStoreStatus: 'cursor-chat-store-status',
     GitStatus: 'git-status',
     GitDiffNumstat: 'git-diff-numstat',
     GitDiffFile: 'git-diff-file',