MAESTRO: improve keyboard access for test selector

frontend/src/__tests__/AnalysisControls.test.tsx

@@ -178,4 +178,42 @@ describe("AnalysisControls", () => {
       expect.objectContaining({ resolve: true, decodeAll: true }),
     );
   });
+
+  it("updates toggles on Space key presses", async () => {
+    setupFetchMock(sampleTests);
+    const handleChange = vi.fn();
+
+    const AnalysisControlsHarness = () => {
+      const [config, setConfig] = useState<AnalysisConfig>({
+        testIds: [],
+        resolve: false,
+        decodeAll: false,
+      });
+
+      const updateConfig = (next: AnalysisConfig) => {
+        setConfig(next);
+        handleChange(next);
+      };
+
+      return <AnalysisControls config={config} onChange={updateConfig} />;
+    };
+
+    const { container } = render(<AnalysisControlsHarness />);
+
+    await act(async () => {
+      await flushPromises();
+    });
+
+    const resolveToggle = getToggle(container, "toggle-resolve");
+    act(() => {
+      resolveToggle.dispatchEvent(
+        new KeyboardEvent("keydown", { key: " ", bubbles: true }),
+      );
+    });
+
+    expect(resolveToggle.getAttribute("aria-checked")).toBe("true");
+    expect(handleChange).toHaveBeenLastCalledWith(
+      expect.objectContaining({ resolve: true }),
+    );
+  });
 });

frontend/src/__tests__/TestSelector.test.tsx

@@ -164,6 +164,43 @@ describe("TestSelector", () => {
     });
   });
 
+  it("supports keyboard activation for select and deselect", async () => {
+    setupFetchMock(sampleTests);
+
+    const TestSelectorHarness = () => {
+      const [selected, setSelected] = useState<number[]>([]);
+      return <TestSelector selectedTestIds={selected} onSelectionChange={setSelected} />;
+    };
+
+    const { container } = render(<TestSelectorHarness />);
+
+    await act(async () => {
+      await flushPromises();
+    });
+
+    const selectAllButton = getSelectAllButton(container);
+    act(() => {
+      selectAllButton.dispatchEvent(
+        new KeyboardEvent("keydown", { key: "Enter", bubbles: true }),
+      );
+    });
+
+    sampleTests.forEach((test) => {
+      expect(getCheckbox(container, test.id).checked).toBe(true);
+    });
+
+    const deselectAllButton = getDeselectAllButton(container);
+    act(() => {
+      deselectAllButton.dispatchEvent(
+        new KeyboardEvent("keydown", { key: " ", bubbles: true }),
+      );
+    });
+
+    sampleTests.forEach((test) => {
+      expect(getCheckbox(container, test.id).checked).toBe(false);
+    });
+  });
+
   it("filters tests by search text", async () => {
     setupFetchMock(sampleTests);