fix(web): replayed tool call after resume reuses its card (duplicate React key)

A suspended agent.propose_options / approval call is replayed on resume with the
same toolCallId; foldEvents pushed a second item with the same key, which also
inflated the tool call meter. Also use 「」 in the report footnote.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/agent/use-agent-stream.ts

@@ -106,6 +106,14 @@ export function foldEvents(events: AgentRunEvent[]): StreamItem[] {
         else items.push({ kind: "thinking", key: `th${e.seq}`, text: e.delta, at: e.at });
         break;
       case "tool_call_start": {
+        // 挂起的调用(方案选择 / 审批 / 等子会话)恢复时按同一 toolCallId 重放:沿用原卡片,不重复出卡
+        const prev = tools.get(e.toolCallId);
+        if (prev) {
+          Object.assign(prev, { status: "running", outputSummary: null, reason: null, endedAt: null });
+          prev.recovery = e.recovery;
+          if (e.inputSummary) prev.inputSummary = e.inputSummary;
+          break;
+        }
         const call: ToolCallView = {
           toolCallId: e.toolCallId,
           capabilityId: e.capabilityId,