feat(cli): add support for numpad SS3 sequences (#19659)

packages/cli/src/ui/contexts/KeypressContext.test.tsx

@@ -758,6 +758,80 @@ describe('KeypressContext', () => {
     );
   });
 
+  describe('Numpad support', () => {
+    it.each([
+      {
+        sequence: '\x1bOj',
+        expected: { name: '*', sequence: '*', insertable: true },
+      },
+      {
+        sequence: '\x1bOk',
+        expected: { name: '+', sequence: '+', insertable: true },
+      },
+      {
+        sequence: '\x1bOm',
+        expected: { name: '-', sequence: '-', insertable: true },
+      },
+      {
+        sequence: '\x1bOo',
+        expected: { name: '/', sequence: '/', insertable: true },
+      },
+      {
+        sequence: '\x1bOp',
+        expected: { name: '0', sequence: '0', insertable: true },
+      },
+      {
+        sequence: '\x1bOq',
+        expected: { name: '1', sequence: '1', insertable: true },
+      },
+      {
+        sequence: '\x1bOr',
+        expected: { name: '2', sequence: '2', insertable: true },
+      },
+      {
+        sequence: '\x1bOs',
+        expected: { name: '3', sequence: '3', insertable: true },
+      },
+      {
+        sequence: '\x1bOt',
+        expected: { name: '4', sequence: '4', insertable: true },
+      },
+      {
+        sequence: '\x1bOu',
+        expected: { name: '5', sequence: '5', insertable: true },
+      },
+      {
+        sequence: '\x1bOv',
+        expected: { name: '6', sequence: '6', insertable: true },
+      },
+      {
+        sequence: '\x1bOw',
+        expected: { name: '7', sequence: '7', insertable: true },
+      },
+      {
+        sequence: '\x1bOx',
+        expected: { name: '8', sequence: '8', insertable: true },
+      },
+      {
+        sequence: '\x1bOy',
+        expected: { name: '9', sequence: '9', insertable: true },
+      },
+      {
+        sequence: '\x1bOn',
+        expected: { name: '.', sequence: '.', insertable: true },
+      },
+    ])(
+      'should recognize numpad sequence "$sequence" as $expected.name',
+      ({ sequence, expected }) => {
+        const { keyHandler } = setupKeypressTest();
+        act(() => stdin.write(sequence));
+        expect(keyHandler).toHaveBeenCalledWith(
+          expect.objectContaining(expected),
+        );
+      },
+    );
+  });
+
   describe('Double-tap and batching', () => {
     it('should emit two delete events for double-tap CSI[3~', async () => {
       const { keyHandler } = setupKeypressTest();