Gateway: multi-select answers and a summary endpoint for the complication

gateway/test/views.test.ts

@@ -1,7 +1,8 @@
 import { describe, expect, it } from "bun:test";
 
 import type { BoundedThread, ThreadShell } from "../src/t3/types.ts";
-import { summarize, trimText } from "../src/views.ts";
+import type { T3Host } from "../src/t3/host.ts";
+import { buildSummary, summarize, trimText } from "../src/views.ts";
 
 const thread = (overrides: Partial<ThreadShell> = {}): ThreadShell => ({
   id: "thread-1",
@@ -98,7 +99,33 @@ describe("summarize", () => {
       thread({ pendingRuntimeRequest: { id: "q1", kind: "user_input", createdAt: "2026-11-01T09:00:00.000Z" } }),
     );
     expect(summary.request?.questions).toEqual([
-      { id: "db", header: "Database", question: "Which database?", options: [{ label: "SQLite", value: "SQLite" }], allowCustomAnswer: false },
+      { id: "db", header: "Database", question: "Which database?", options: [{ label: "SQLite", value: "SQLite" }], allowCustomAnswer: false, multiSelect: false },
     ]);
   });
 });
+
+describe("buildSummary", () => {
+  const at = (minute: number) => `2026-11-01T09:${String(minute).padStart(2, "0")}:00.000Z`;
+  const host = (label: string, status: string, threads: ThreadShell[]) =>
+    ({ id: label, label, status, threads: new Map(threads.map((t) => [t.id, t])) }) as unknown as T3Host;
+
+  it("counts waiting and working threads and names the one waiting longest", () => {
+    const summary = buildSummary([
+      host("Mac mini", "online", [
+        thread({ id: "a", title: "Newer ask", pendingRuntimeRequest: { id: "r1", kind: "command", createdAt: at(30) } }),
+        thread({ id: "b", status: "running" }),
+        thread({ id: "c", status: "completed" }),
+        thread({ id: "d", status: "running", lineage: { relationshipToParent: "subagent" } }),
+      ]),
+      host("LittleMan", "offline", [
+        thread({ id: "e", title: "Older ask", pendingRuntimeRequest: { id: "q1", kind: "user_input", createdAt: at(5) } }),
+      ]),
+    ]);
+    expect(summary).toEqual({
+      needsYou: 2,
+      working: 1,
+      next: { hostId: "LittleMan", threadId: "e", title: "Older ask", hostLabel: "LittleMan" },
+      hostsOffline: 1,
+    });
+  });
+});