P0: Electrobun + Angular 22 + Tailwind skeleton boots under Bun

- Electrobun 1.18 shell with branding in src/shared/branding.ts
- Angular 22 zoneless UI in ui/ (workspace), Tailwind v4 shadcn-style tokens
- ng-icons/mynaui icon registry
- Node-version shim so Angular CLI runs under Bun without Node installed
- ssh2 SFTP verified working under Bun against test box

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/bun/index.ts

@@ -0,0 +1,37 @@
+import { BrowserWindow, Updater } from "electrobun/bun";
+import { BRANDING } from "../shared/branding";
+
+const PROD_URL = "views://app/index.html";
+
+// In dev, scripts/dev.ts sets DEV_SERVER_URL to the running ng serve instance
+// so the UI gets HMR. Packaged builds always load the bundled Angular app.
+async function getMainViewUrl(): Promise<string> {
+	const devServerUrl = process.env.DEV_SERVER_URL;
+	if (!devServerUrl) return PROD_URL;
+
+	const channel = await Updater.localInfo.channel();
+	if (channel !== "dev") return PROD_URL;
+
+	try {
+		await fetch(devServerUrl, { method: "HEAD" });
+		return devServerUrl;
+	} catch {
+		console.log(`Dev server ${devServerUrl} not reachable, using ${PROD_URL}`);
+		return PROD_URL;
+	}
+}
+
+const url = await getMainViewUrl();
+
+const mainWindow = new BrowserWindow({
+	title: BRANDING.appName,
+	url,
+	frame: {
+		width: 1200,
+		height: 760,
+		x: 120,
+		y: 120,
+	},
+});
+
+console.log(`${BRANDING.appName} started (${url})`);