fix(usage): only list apps shown on the Apps page in the app filter

The usage dashboard listed every known app as a filter chip regardless of
the visibility switches on the Apps page. Filter the chips the same way the
session manager does: Claude Code stays while Claude Desktop is shown, and
the currently selected app is kept even if it has been hidden.

src/components/usage/UsageDashboard.tsx

@@ -39,6 +39,8 @@ import {
   useProviderStats,
   useSessionUsageLastSync,
 } from "@/lib/query/usage";
+import { useSettingsQuery } from "@/lib/query";
+import { DEFAULT_VISIBLE_APPS } from "@/config/appConfig";
 import { useUsageEventBridge } from "@/hooks/useUsageEventBridge";
 import { useUsageAutoRefresh } from "@/hooks/useUsageAutoRefresh";
 import { usageApi } from "@/lib/api/usage";
@@ -516,6 +518,18 @@ export function UsageDashboard({
 
   // ── 筛选行 ───────────────────────────────────────────────────────────
   // 选中块是单独的滑块（SegmentThumb），切换应用时滑过去
+  // 只列「应用」页设为显示的应用；Claude Code 的用量在 Claude Desktop 显示时也算，
+  // 当前选中的即使被隐藏也留着，免得筛选状态无处可见
+  const { data: settings } = useSettingsQuery();
+  const filterApps = useMemo(() => {
+    const visible = { ...DEFAULT_VISIBLE_APPS, ...settings?.visibleApps };
+    return KNOWN_APP_TYPES.filter(
+      (app) =>
+        visible[app] ||
+        (app === "claude" && visible["claude-desktop"]) ||
+        app === appType,
+    );
+  }, [settings?.visibleApps, appType]);
   const appFilterIndicator = useSlidingIndicator<HTMLDivElement>(
     '[aria-pressed="true"]',
     appType,
@@ -550,7 +564,7 @@ export function UsageDashboard({
           {t("usage.appFilter.all")}
         </button>
         {/* 应用只露图标，名字放悬停提示和 aria-label */}
-        {KNOWN_APP_TYPES.map((app) => (
+        {filterApps.map((app) => (
           <HoverTip key={app} content={APP_DISPLAY_NAME[app]}>
             <button
               type="button"

tests/components/UsageDashboard.test.tsx

@@ -8,6 +8,7 @@ import {
   resetUsageSyncClockForTests,
 } from "@/components/usage/UsageDashboard";
 import type { UsageRangeSelection } from "@/types/usage";
+import { setSettings } from "../msw/state";
 
 const useProviderStatsMock = vi.hoisted(() => vi.fn());
 const useModelStatsMock = vi.hoisted(() => vi.fn());
@@ -324,6 +325,42 @@ describe("UsageDashboard", () => {
     );
   });
 
+  it("lists only the apps shown on the Apps page, keeping the selected one", async () => {
+    setSettings({
+      visibleApps: {
+        claude: false,
+        "claude-desktop": true,
+        codex: true,
+        gemini: false,
+        grokbuild: false,
+        opencode: false,
+        openclaw: true,
+        hermes: true,
+        pi: false,
+        mcode: false,
+        agy: false,
+      },
+    });
+    renderDashboard({ initialAppType: "gemini" });
+
+    await waitFor(() =>
+      expect(
+        screen.queryByRole("button", { name: "Pi" }),
+      ).not.toBeInTheDocument(),
+    );
+    // Claude Desktop 显示时 Claude Code 的用量也列；选中的 Gemini 虽被隐藏也留着
+    expect(
+      screen.getByRole("button", { name: "Claude Code" }),
+    ).toBeInTheDocument();
+    expect(screen.getByRole("button", { name: /Codex/ })).toBeInTheDocument();
+    expect(
+      screen.getByRole("button", { name: /Gemini/, pressed: true }),
+    ).toBeInTheDocument();
+    expect(
+      screen.queryByRole("button", { name: /Grok/ }),
+    ).not.toBeInTheDocument();
+  });
+
   it("filters by provider and lists request counts", async () => {
     const user = userEvent.setup();
     renderDashboard();