feat(core): add Electron runtime, services, and app composition

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

@@ -0,0 +1,31 @@
+import type {
+  NumericShortcutSessionMessages,
+  NumericShortcutSessionStartParams,
+} from '../../core/services/numeric-shortcut';
+
+type NumericShortcutSessionLike = {
+  start: (params: NumericShortcutSessionStartParams) => void;
+  cancel: () => void;
+};
+
+export function createCancelNumericShortcutSessionHandler(deps: {
+  session: NumericShortcutSessionLike;
+}) {
+  return (): void => {
+    deps.session.cancel();
+  };
+}
+
+export function createStartNumericShortcutSessionHandler(deps: {
+  session: NumericShortcutSessionLike;
+  onDigit: (digit: number) => void;
+  messages: NumericShortcutSessionMessages;
+}) {
+  return (timeoutMs: number): void => {
+    deps.session.start({
+      timeoutMs,
+      onDigit: deps.onDigit,
+      messages: deps.messages,
+    });
+  };
+}