jif 5371951292 Batch non-user history eviction to preserve Guardian transcript deltas (#43798) ...

## Why

Evicting entries on every append once history fills invalidates Guardian's transcript cursor, forcing repeated full transcripts instead of deltas.

## What changed

On non-user history overflow, evict at least the oldest half of existing non-user entries, removing more if needed to meet the byte limit. This leaves room for subsequent appends without invalidating the cursor. Preserve the separate user-message retention limits.

## Testing

Update retention assertions and add a regression test that verifies a full transcript after eviction, followed by a delta on the same Guardian thread, while retaining the user's earlier restriction.

GitOrigin-RevId: 7ba18f01e2962d3de35488d981b667ccbb8995c7

2026-09-08 11:03:44 +00:00

..

common

Avoid WebSocket connection waits in Guardian v2 classification (#43408)

2026-09-07 09:24:03 +00:00

fixtures

Organize bundled Rust resources under asset directories (#41477)

2026-08-29 06:05:28 +00:00

remote_env_windows

Apply remote platform semantics to exec safety checks (#42113)

2026-09-01 18:24:56 +00:00

suite

Batch non-user history eviction to preserve Guardian transcript deltas (#43798)

2026-09-08 11:03:44 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00

responses_headers.rs

Sanitize credentials from Git remote metadata (#40713)

2026-08-25 21:34:05 +00:00