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7234700c78
* fix(llm): prevent UTF-8 panic in line_bounds() (fixes #1669) `line_bounds()` used `text[..pos]` slicing which panics when `pos` lands inside a multi-byte UTF-8 character. This happens when `end.saturating_sub(1)` in `is_recoverable_tool_call_segment()` steps back into a multi-byte char like emoji. Fix: clamp `pos` to `text.len()` and walk backward to the nearest char boundary before slicing. Add 5 regression tests covering mid-char positions, emoji boundaries, and out-of-bounds pos. Also fix pre-existing clippy `unnecessary_sort_by` warnings in web gateway handlers. Generated with [Claude Code](https://claude.ai/code) via [Happy](https://happy.engineering) Co-Authored-By: Claude <[email protected]> Co-Authored-By: Happy <[email protected]> * test: assert expected values in line_bounds UTF-8 tests Address Gemini review: strengthen regression tests to verify correct return values (not just absence of panic) when pos lands mid-char. Generated with [Claude Code](https://claude.ai/code) via [Happy](https://happy.engineering) Co-Authored-By: Claude <[email protected]> Co-Authored-By: Happy <[email protected]> --------- Co-authored-by: willamhou <[email protected]> Co-authored-by: Claude <[email protected]> Co-authored-by: Happy <[email protected]>