feat(core): add module scaffolding and provider registries

src/ipc/main-api.ts

@@ -0,0 +1,19 @@
+import { ipcMain, IpcMainEvent } from "electron";
+import {
+  RendererToMainInvokeChannel,
+  RendererToMainSendChannel,
+} from "./contract";
+
+export function onRendererSend(
+  channel: RendererToMainSendChannel,
+  listener: (event: IpcMainEvent, ...args: any[]) => void,
+): void {
+  ipcMain.on(channel, listener);
+}
+
+export function handleRendererInvoke(
+  channel: RendererToMainInvokeChannel,
+  handler: (event: Electron.IpcMainInvokeEvent, ...args: any[]) => unknown,
+): void {
+  ipcMain.handle(channel, handler);
+}