refactor: split main runtime wrappers into focused modules

src/main/runtime/numeric-shortcut-session-handlers.test.ts

@@ -0,0 +1,42 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  createCancelNumericShortcutSessionHandler,
+  createStartNumericShortcutSessionHandler,
+} from './numeric-shortcut-session-handlers';
+
+test('cancel numeric shortcut session handler cancels active session', () => {
+  const calls: string[] = [];
+  const cancel = createCancelNumericShortcutSessionHandler({
+    session: {
+      start: () => {},
+      cancel: () => calls.push('cancel'),
+    },
+  });
+
+  cancel();
+  assert.deepEqual(calls, ['cancel']);
+});
+
+test('start numeric shortcut session handler forwards timeout, messages, and onDigit', () => {
+  const calls: string[] = [];
+  const start = createStartNumericShortcutSessionHandler({
+    session: {
+      cancel: () => {},
+      start: ({ timeoutMs, onDigit, messages }) => {
+        calls.push(`timeout:${timeoutMs}`);
+        calls.push(`prompt:${messages.prompt}`);
+        onDigit(3);
+      },
+    },
+    onDigit: (digit) => calls.push(`digit:${digit}`),
+    messages: {
+      prompt: 'Prompt',
+      timeout: 'Timeout',
+      cancelled: 'Cancelled',
+    },
+  });
+
+  start(1200);
+  assert.deepEqual(calls, ['timeout:1200', 'prompt:Prompt', 'digit:3']);
+});