优化思考与工具展开布局

src/client/components/messages/TurnTrace.vue

@@ -26,11 +26,11 @@ const statusLabel = computed(() => props.group.status === 'running' ? '进行中
     </summary>
     <div class="turn-trace__content">
       <template v-for="entry in group.entries" :key="entry.id">
-        <section v-if="entry.type === 'reasoning'" class="turn-trace__reasoning">
+        <section v-if="entry.type === 'reasoning'" class="turn-trace__item turn-trace__reasoning">
           <header><AppIcon name="brain" :size="12" />思考过程 · {{ entry.content.length }} 字</header>
           <MarkdownContent :content="entry.content" />
         </section>
-        <ToolTrace v-else :tool="entry.tool" expanded />
+        <ToolTrace v-else class="turn-trace__item turn-trace__tool" :tool="entry.tool" expanded />
       </template>
     </div>
   </details>
@@ -39,7 +39,9 @@ const statusLabel = computed(() => props.group.status === 'running' ? '进行中
 <style scoped>
 .turn-trace { width: min(680px, 100%); margin: 2px 0 9px; color: var(--text-muted); }.turn-trace > summary { display: flex; width: fit-content; min-height: 28px; align-items: center; gap: 6px; padding: 2px 7px 2px 2px; border-radius: 7px; cursor: pointer; list-style: none; transition: background-color 100ms ease, color 100ms ease; }.turn-trace > summary::-webkit-details-marker { display: none; }.turn-trace > summary:hover, .turn-trace > summary:focus-visible { outline: 0; background: var(--surface-soft); color: var(--text-secondary); }.turn-trace > summary strong { color: var(--text-secondary); font-size: 10px; font-weight: 540; }.turn-trace > summary small { font-size: 9px; }.turn-trace > summary em { color: var(--warning); font-size: 8px; font-style: normal; }.turn-trace--error > summary em { color: var(--danger); }
 .turn-trace__caret { display: inline-block; width: 9px; font-size: 14px; line-height: 1; transition: transform 120ms ease; }.turn-trace[open] .turn-trace__caret { transform: rotate(90deg); }
-.turn-trace__content { margin: 1px 0 6px 9px; padding: 2px 0 4px 13px; border-left: 1px dashed var(--line-strong); }.turn-trace__reasoning { max-width: 620px; padding: 7px 0 5px; color: var(--text-secondary); }.turn-trace__reasoning header { display: flex; align-items: center; gap: 5px; margin-bottom: 6px; color: var(--text-muted); font-size: 9px; }.turn-trace__reasoning :deep(.markdown) { font-size: 11px; line-height: 1.58; }
-.turn-trace :deep(.tool-trace) { margin-block: 5px; }
+.turn-trace__content { display: grid; max-height: min(420px, 52vh); margin: 1px 0 6px 9px; padding: 2px 8px 4px 13px; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; border-left: 1px dashed var(--line-strong); }
+.turn-trace__item { min-width: 0; }
+.turn-trace__reasoning { max-width: 620px; padding: 7px 0 5px; color: var(--text-secondary); }.turn-trace__reasoning header { display: flex; min-height: 22px; align-items: center; gap: 5px; margin-bottom: 6px; color: var(--text-muted); font-size: 9px; }.turn-trace__reasoning :deep(.markdown) { font-size: 11px; line-height: 1.58; }
+.turn-trace :deep(.turn-trace__tool) { margin: 0; padding: 5px 0; }
 @media (prefers-reduced-motion: reduce) { .turn-trace > summary, .turn-trace__caret { transition: none; } }
 </style>

tests/e2e/workspace.spec.ts

@@ -634,6 +634,18 @@ test('folds tool result rows into their expandable tool call', async ({ page })
   await expect(trace.locator('.tool-trace')).toHaveCount(2)
   await expect(trace.locator('.tool-trace__details')).toHaveCount(2)
   await expect(trace.locator('.tool-trace__details').filter({ hasText: '/tmp/demo-report.pdf' })).toBeVisible()
+  const traceContent = trace.locator('.turn-trace__content')
+  await expect(traceContent).toHaveCSS('overflow-y', 'auto')
+  await expect(traceContent.locator(':scope > .turn-trace__item')).toHaveCount(4)
+  const layout = await traceContent.evaluate(element => {
+    const items = [...element.children] as HTMLElement[]
+    return {
+      maxHeight: Number.parseFloat(getComputedStyle(element).maxHeight),
+      leftOffsets: items.map(item => item.offsetLeft),
+    }
+  })
+  expect(layout.maxHeight).toBeLessThanOrEqual(420)
+  expect(new Set(layout.leftOffsets).size).toBe(1)
   await expect(page.locator('[data-message-id="message-tool-call"]')).toHaveCount(0)
   await expect(page.locator('.message--tool')).toHaveCount(0)
 })