fix(codex): keep a dismissal answered when the selection has not moved

Adding a Codex account and reauthenticating the active one both re-mark
every live pane with the active account unchanged. Once a dismissed
notice survives as launch-account memory, that re-mark rebuilt the record
without the marker, resurrecting a prompt the user had answered and
re-blocking the pane's keyboard. Carry `dismissed` forward when the
target account is the one the dismissal already answered.

src/renderer/src/store/slices/codex-restart-notice-lifecycle.test.ts

@@ -57,6 +57,22 @@ describe('codex restart notice lifecycle', () => {
     })
   })
 
+  it('leaves a dismissal answered when the active account is re-marked unchanged', () => {
+    switchAccount('pty-1', A, B)
+    useAppStore.getState().dismissCodexRestartNotices(['pty-1'])
+
+    // Why: adding an account and reauthenticating the active one both re-mark
+    // live panes with the selection unchanged. Nothing about the pane moved, so
+    // resurrecting the prompt would also re-block a keyboard the user freed.
+    switchAccount('pty-1', B, B)
+
+    expect(useAppStore.getState().codexRestartNoticeByPtyId['pty-1']).toEqual({
+      previousAccountLabel: A,
+      nextAccountLabel: B,
+      dismissed: true
+    })
+  })
+
   it('drops a queued restart when the user dismisses the same pane', () => {
     switchAccount('pty-1', A, B)
     useAppStore.getState().queueCodexPaneRestarts(['pty-1'])

src/renderer/src/store/slices/terminals.ts

@@ -2856,9 +2856,15 @@ export const createTerminalSlice: StateCreator<AppState, [], [], TerminalSlice>
           nextAccountLabel: notice.nextAccountLabel,
           // Why: a queued restart relaunches under whatever account is selected
           // when it runs, so a later switch does not reopen an answered prompt.
-          // A dismissal is deliberately not carried over — it answered "keep the
-          // old account instead of B", which says nothing about a later C.
-          ...(existing?.restartRequested ? { restartRequested: true as const } : {})
+          ...(existing?.restartRequested ? { restartRequested: true as const } : {}),
+          // Why: a dismissal answered one question — "keep the launch account
+          // instead of this one". Only a genuinely different target re-asks it,
+          // so a later C reopens the prompt while adding an account or
+          // reauthenticating the active one (both re-mark live panes with the
+          // selection unchanged) must not resurrect it and re-mute the pane.
+          ...(existing?.dismissed && existing.nextAccountLabel === notice.nextAccountLabel
+            ? { dismissed: true as const }
+            : {})
         }
       }
       return {