Repeated "access data from other apps" (kTCCServiceSystemPolicyAppData) permission prompts every 2-3 minutes

**App version:** claude-code 2.1.258 (macOS desktop app)

**Description:**
The desktop app repeatedly triggers the macOS "'claude' would like to access data from other apps" privacy prompt (Automation/App Data permission), roughly every 2-3 minutes, even when the app is idle and not actively being used for a task.

**Diagnosis from system logs (`log show --predicate 'process == "tccd"'`):**
Each recurrence corresponds to a new internal subprocess PID spawned by the app (e.g. parent 14937 → child 14998 in one instance, parent 9695 → child 9733 in another), each triggering a fresh `kTCCServiceSystemPolicyAppData` prompt via sandboxd. TCC does not appear to remember a prior Allow/Don't Allow answer across these subprocess launches — suggesting the code signature/identity isn't stable between spawns, so macOS treats each one as an unverified requester.

**Impact:** Interrupts the user every 2-3 minutes regardless of whether Claude Code is in use.

**Expected:** Permission should be requested once and persist, or the background process triggering repeated `kTCCServiceSystemPolicyAppData` checks shouldn't need to re-request per subprocess launch.

Start by reproducing the prompt and running `log show --predicate 'process == "tccd"'` while recording the parent and child subprocess PIDs. Compare the spawned processes' code-signing identity and TCC behavior around `kTCCServiceSystemPolicyAppData`. Done means an idle app no longer prompts every 2–3 minutes and an Allow or Don't Allow decision persists across subprocess launches.

Written by the indexing model from the issue text.