Michael Bolin 341550c275 permissions: store thread sessions as profiles (#19776)
## Why

After thread sessions have a required `PermissionProfile`, the TUI no
longer needs to cache a separate legacy `SandboxPolicy` in
`ThreadSessionState`. Keeping the legacy field would reintroduce two
permission authorities in the session cache and make later
replay/switching logic easier to get wrong.

This PR keeps legacy app-server compatibility at the ingestion boundary:
old `sandbox` response values are still accepted, but they are
immediately converted to a cwd-anchored profile.

## What Changed

- Removes `ThreadSessionState.sandbox_policy`.
- Updates active-session permission syncing to write only the current
`PermissionProfile`.
- Updates thread-read/replay/test fixtures to use profiles as the cached
session permission source.
- Leaves legacy `sandbox` fields in app-server request/response protocol
paths unchanged; those are compatibility boundaries and are converted
before entering cached TUI state.

## Verification

- `cargo test -p codex-tui thread_session_state::tests --lib`
- `cargo test -p codex-tui
inactive_thread_started_notification_initializes_replay_session --lib`
- `cargo test -p codex-tui thread_events --lib`
- `just fix -p codex-tui`




































---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/openai/codex/pull/19776).
* #19900
* #19899
* __->__ #19776
341550c275 · 2026-04-28 05:49:58 +00:00
5,890 Commits
2026-04-24 17:49:29 -07:00
2026-04-24 17:49:29 -07:00
2025-04-16 12:56:08 -04:00
2025-04-16 12:56:08 -04:00
2026-04-22 11:46:11 +01:00
2026-04-24 17:49:29 -07:00
2026-04-07 10:55:58 -07:00

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