[Feature]: Surface Claude Edit/Write before/after text in expanded tool entries

Summary

Expanded tool entries for Claude Edit/Write calls show file paths but never the changed text — no before/after and no diff. Codex turns already surface unifiedDiff data; the Claude path has no equivalent, so reviewing what an edit actually changed requires leaving T3 or re-reading the file.

Current behavior

• For Claude edits, the expanded entry carries paths/summaries only. The tool input text (old_string/new_string/content) never reaches the UI in any form.
• Checked on stable 0.0.40 and on current main: a code search shows no old_string/new_string/unifiedDiff handling in ClaudeAdapter.ts — unifiedDiff exists only around the Codex/checkpoint paths, which is a different mechanism (turn-level summaries, not per-edit before/after).

Expected behavior

• Expanded Edit/Write entries include a bounded verbatim before/after pair (with a truncation flag when the bound is hit), rendered in the existing expandable work-log row — no new UI surface needed.
• Collapsed rows stay exactly as today.

Repro

1. In a Claude-backed thread, ask the agent to edit any tracked file.
2. Expand the Edit/Write work-log entry.
3. The entry shows paths only; the old/new text is nowhere in the UI although it was present in the tool input.

A per-field bound keeps this consistent with the recent payload-slimming direction. Happy to provide fixtures or help validate a bounded-payload design.

Start in ClaudeAdapter.ts and compare its tool-input handling with the existing Codex unifiedDiff paths. Trace how expanded work-log rows receive their data, then add bounded verbatim before/after text for Claude Edit/Write entries with a truncation flag while keeping collapsed rows unchanged. Validate using a Claude-backed thread that edits a tracked file.