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

src/renderer/context.ts

@@ -0,0 +1,14 @@
+import type { RendererState } from './state';
+import type { RendererDom } from './utils/dom';
+import type { PlatformInfo } from './utils/platform';
+
+export type RendererContext = {
+  dom: RendererDom;
+  platform: PlatformInfo;
+  state: RendererState;
+};
+
+export type ModalStateReader = {
+  isAnySettingsModalOpen: () => boolean;
+  isAnyModalOpen: () => boolean;
+};