Naiyuan Qing a7ec1287b3 feat(views): transcript reading hierarchy — presenter, expand modes, log-scale markdown ...

The transcript rendered all five event kinds as identical truncated
one-liners: agent replies and errors were clipped to half a sentence and
only readable through an 11px bordered scroll box, indistinguishable in
weight from dozens of tool rows.

- trace-event-presenter.ts: pure presentation rules — kind, verbatim
  tool labels, newline-free one-line summaries, shell-wrapper stripping
  for command summaries, and per-kind default expansion.
- Smart reading hierarchy: agent text renders in place through
  RichContent (compact density + transcript-prose log scale: headings
  demoted to body size, 12.5px/11px two-step type ramp) and errors read
  unboxed; thinking and tool rows stay folded to one line.
- Expand mode menu replaces the expand-visible toggle: a persisted
  three-way preference (smart / expand all / collapse all) with per-item
  descriptions; row-level toggles override it until the mode changes.
  transcript-view-store migrates the legacy defaultExpanded boolean.
- Tool params/output expand into a quiet borderless surface; long
  content fades behind "Show all" instead of a nested scrollbar.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-24 16:01:46 +08:00

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