fix(memhub): show attributed app calls on home

Co-authored-by: Cursor <cursoragent@cursor.com>

memhub/apps/web/src/ApplicationsHome.test.tsx

@@ -233,7 +233,7 @@ it("shows latest recorded call separately without exposing recent-update detail
   await screen.findByText("Codex 查到 3 条相关内容");
   expect(document.querySelector(".r6-home-call-direction")).toBeTruthy();
   expect(screen.queryByText("实际治理记忆")).toBeNull();
-  expect(screen.getByText(/今天 .+ · 查询成功/)).toBeTruthy();
+  expect(screen.getByText(/Codex · 今天 .+ · 查询成功/)).toBeTruthy();
   fireEvent.click(screen.getByRole("tab", { name: "最近更新" }));
   expect(screen.getByText("实际治理记忆")).toBeTruthy();
   expect(screen.queryByRole("button", { name: "查看记忆" })).toBeNull();
@@ -246,11 +246,56 @@ it("shows latest recorded call separately without exposing recent-update detail
   } else {
     // D96: the recent call still shows on the home page; only the way into
     // the call-history page is hidden.
-    expect(screen.getByText(/今天 .+ · 查询成功/)).toBeTruthy();
+    expect(screen.getByText(/Codex · 今天 .+ · 查询成功/)).toBeTruthy();
     expect(screen.queryByRole("button", { name: "查看记录" })).toBeNull();
     expect(onCalls).not.toHaveBeenCalled();
   }
 });
+it("skips direct diagnostics and shows the latest attributed application call", async () => {
+  history.mockResolvedValue({
+    available: true,
+    recording_error: false,
+    items: [
+      {
+        event_id: "direct-diagnostic",
+        host_id: null,
+        state: "grounded",
+        occurred_at: new Date().toISOString(),
+        memory_count: 1,
+        raw_count: 0,
+        references: [],
+      },
+      {
+        event_id: "workbuddy-call",
+        host_id: "workbuddy",
+        state: "grounded",
+        occurred_at: new Date(Date.now() - 60_000).toISOString(),
+        memory_count: 5,
+        raw_count: 0,
+        references: [],
+      },
+    ],
+  });
+  render(
+    <ApplicationsHome
+      imports={imports}
+      onManage={() => {}}
+      onMemories={() => {}}
+      onSettings={() => {}}
+      onCalls={() => {}}
+    />,
+  );
+
+  fireEvent.click(await screen.findByRole("tab", { name: "最近调用" }));
+  expect(await screen.findByText("WorkBuddy 查到 5 条相关内容")).toBeTruthy();
+  expect(screen.queryByText(/直接调用/)).toBeNull();
+  expect(screen.getByText(/WorkBuddy · 今天 .+ · 查询成功/)).toBeTruthy();
+  const direction = document.querySelector(".r6-home-call-direction");
+  expect(direction?.querySelector("img")?.getAttribute("src")).toContain(
+    "/r6/workbuddy.png",
+  );
+  expect(direction?.querySelector(".r6-app-initial")).toBeNull();
+});
 it("shows only the host for memory hits whose references have no source", async () => {
   history.mockResolvedValue({
     available: true,

memhub/apps/web/src/ApplicationsHome.tsx

@@ -94,6 +94,10 @@ function successfulCall(item: CallEvent) {
   return item.state === "grounded" || item.state === "empty";
 }
 
+function attributedSuccessfulCall(item: CallEvent) {
+  return item.host_id !== null && successfulCall(item);
+}
+
 function callAttention(events: CallEvent[]) {
   const hosts = new Set<string>();
   for (const event of events) {
@@ -212,7 +216,10 @@ export function ApplicationsHome({
         const result = await getCallHistory({ limit: 20, offset: 0 });
         if (cancelled) return;
         setCallEvents(result.items);
-        setRecentCall(result.items.find(successfulCall) ?? null);
+        // The home card promises an application identity. Direct diagnostic
+        // calls have no host and remain available in call history, but cannot
+        // truthfully supply the icon and name required by this surface.
+        setRecentCall(result.items.find(attributedSuccessfulCall) ?? null);
         setCallState(
           !result.available
             ? "disabled"
@@ -597,6 +604,9 @@ export function ApplicationsHome({
   const recentCallHost = imports.sources.find((source) =>
     sourceMatchesHost(source.source_id, recentCall?.host_id ?? null),
   );
+  const recentCallHostName = recentCall
+    ? (recentCallHost?.display_name ?? callHostName(recentCall.host_id, locale))
+    : null;
   const attention = callAttention(callEvents);
   const attentionHost = attention ? callHostName(attention.host, locale) : null;
   const activity = summaryUnavailable
@@ -934,8 +944,7 @@ export function ApplicationsHome({
                       : activity === "call" && recentCall
                         ? callDetailHeadline(
                             recentCall,
-                            recentCallHost?.display_name ??
-                              callHostName(recentCall.host_id, locale),
+                            recentCallHostName ?? undefined,
                             locale,
                           )
                         : activity === "memory" && latest
@@ -956,7 +965,7 @@ export function ApplicationsHome({
                         ? t("apps.callReadFailure")
                         : t("apps.memoryReadFailure")
                       : activity === "call" && recentCall
-                        ? `${stamped(recentCall.occurred_at, locale, t)} · ${callRowDetail(recentCall, locale)}${callState === "incomplete" ? t("apps.incompleteCalls") : ""}`
+                        ? `${recentCallHostName} · ${stamped(recentCall.occurred_at, locale, t)} · ${callRowDetail(recentCall, locale)}${callState === "incomplete" ? t("apps.incompleteCalls") : ""}`
                         : activity === "memory" && latest
                           ? [time, latestSourceNames.join(", ")]
                               .filter(Boolean)