refactor(ui): split ToolCall into focused modules

packages/ui/src/components/tool-call/diagnostics-section.tsx

@@ -0,0 +1,53 @@
+import { For, Show } from "solid-js"
+import type { DiagnosticEntry } from "./diagnostics"
+
+export function renderDiagnosticsSection(
+  entries: DiagnosticEntry[],
+  expanded: boolean,
+  toggle: () => void,
+  fileLabel: string,
+) {
+  if (entries.length === 0) return null
+  return (
+    <div class="tool-call-diagnostics-wrapper">
+      <button
+        type="button"
+        class="tool-call-diagnostics-heading"
+        aria-expanded={expanded}
+        onClick={toggle}
+      >
+        <span class="tool-call-icon" aria-hidden="true">
+          {expanded ? "▼" : "▶"}
+        </span>
+        <span class="tool-call-emoji" aria-hidden="true">
+          🛠
+        </span>
+        <span class="tool-call-summary">Diagnostics</span>
+        <span class="tool-call-diagnostics-file" title={fileLabel}>
+          {fileLabel}
+        </span>
+      </button>
+      <Show when={expanded}>
+        <div class="tool-call-diagnostics" role="region" aria-label="Diagnostics">
+          <div class="tool-call-diagnostics-body" role="list">
+            <For each={entries}>
+              {(entry) => (
+                <div class="tool-call-diagnostic-row" role="listitem">
+                  <span class={`tool-call-diagnostic-chip tool-call-diagnostic-${entry.tone}`}>
+                    <span class="tool-call-diagnostic-chip-icon">{entry.icon}</span>
+                    <span>{entry.label}</span>
+                  </span>
+                  <span class="tool-call-diagnostic-path" title={entry.filePath}>
+                    {entry.displayPath}
+                    <span class="tool-call-diagnostic-coords">:L{entry.line || "-"}:C{entry.column || "-"}</span>
+                  </span>
+                  <span class="tool-call-diagnostic-message">{entry.message}</span>
+                </div>
+              )}
+            </For>
+          </div>
+        </div>
+      </Show>
+    </div>
+  )
+}