Eric Traut 95dcd1e837 Fix Unicode caseless matching in thread search (#60759) ...

## Why

Lowercasing alone misses caseless matches such as Greek sigma variants and `ss` matching `ß` in `thread/searchOccurrences`.

## What changed

Use Unicode default case folding after lowercasing both search terms and text. Map folded matches back to source character boundaries so snippets highlight the original text correctly, including characters that expand during folding.

## Testing

Extend the app-server search integration test to cover sigma variants, `ss` matching `ß`, newer Unicode case mappings, and UTF-16 match ranges in text containing an emoji.

GitOrigin-RevId: 6c4937d475daf51d3cd7784b48f5f4a8ce5fa82a

2026-11-11 08:28:25 +00:00

..

common

Gate plugin recommendation cache warming on feature flags (#60721)

2026-11-11 05:38:52 +00:00

suite

Fix Unicode caseless matching in thread search (#60759)

2026-11-11 08:28:25 +00:00

all.rs

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

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

prompt_prefix.rs

Disable bundled skills in the prompt-prefix comparison test (#60017)

2026-11-07 00:54:03 +00:00