程序员阿江(Relakkes) 00b4ead0ca fix(trace): show tool call durations (#799)
Compute tool spans from paired tool results, surface session wall/model/tool timing, and keep pending spans updated with elapsed time.

Tested: cd desktop && bun run test -- --run src/lib/traceViewModel.test.ts src/pages/TraceSession.test.tsx
Tested: cd desktop && bun run test -- --run src/pages/TraceList.test.tsx
Tested: bun run check:desktop
Scope-risk: narrow
2026-06-12 10:50:55 +08:00
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