ci: bootstrap Linux release toolchains

apps/desktop/tests/setup.ts

@@ -76,6 +76,30 @@ vi.mock('electron', () => ({
     decryptString: vi.fn((b: Buffer) => b.toString('utf-8')),
   },
   Notification: vi.fn(),
+  globalShortcut: {
+    register: vi.fn(() => true),
+    unregister: vi.fn(),
+    unregisterAll: vi.fn(),
+    isRegistered: vi.fn(() => false),
+  },
+}))
+
+// Unit tests must not load the native global keyboard hook. Linux shell runners
+// intentionally do not provide an X11 session or libXrandr, and product-level
+// hook behaviour is covered by runtime/E2E validation instead.
+vi.mock('uiohook-napi', () => ({
+  uIOhook: {
+    on: vi.fn(),
+    removeListener: vi.fn(),
+    start: vi.fn(),
+    stop: vi.fn(),
+  },
+  UiohookKey: new Proxy<Record<string, number>>({}, {
+    get: (_target, property) => Array.from(String(property)).reduce(
+      (value, character) => ((value * 31) + character.charCodeAt(0)) & 0x7fffffff,
+      17,
+    ),
+  }),
 }))
 
 // WindowManager 모킹 — VoiceModeService가 import하므로 필요