feat(ui): update instant capture, count badges, mobile triage and folder modal

frontend/src/features/triage/__tests__/TriageDeck.lists.test.tsx

@@ -160,4 +160,26 @@ describe('TriageDeck single-list shortcut', () => {
     expect(api.triageAction).not.toHaveBeenCalled();
     expect(onDeckChange).not.toHaveBeenCalled();
   });
+
+  it('renders mobile quick action buttons and triggers discard', async () => {
+    const onDeckChange = vi.fn();
+
+    render(
+      <TriageDeck
+        deck={sampleDeck}
+        lists={[ownList]}
+        onDeckChange={onDeckChange}
+        onOpenDocument={vi.fn()}
+        onFocusCapture={vi.fn()}
+      />
+    );
+
+    const [mobileDiscard] = screen.getAllByRole('button', { name: /^Wegwerfen$/i });
+    fireEvent.click(mobileDiscard);
+
+    await waitFor(() => {
+      expect(api.triageAction).toHaveBeenCalledWith('th_1', 'discard', expect.objectContaining({}));
+      expect(onDeckChange).toHaveBeenCalledTimes(1);
+    });
+  });
 });