fix(console): restore isolated worker execution by default

src/lib/console.js

@@ -8,6 +8,7 @@ import ConsoleExecutor, {
 	applyConsoleViewport,
 	executeConsoleCommand,
 	executeConsoleScript,
+	resolveConsoleExecutionContext,
 } from "./consoleRuntime";
 
 (function () {
@@ -69,14 +70,14 @@ import ConsoleExecutor, {
 			title: "Choose isolated Worker execution or live page access",
 		},
 		children: [
-			tag("option", {
-				textContent: "Page",
-				attr: { value: "page" },
-			}),
 			tag("option", {
 				textContent: "Worker",
 				attr: { value: "worker" },
 			}),
+			tag("option", {
+				textContent: "Page (unsafe)",
+				attr: { value: "page" },
+			}),
 		],
 		onchange() {
 			if (this.value !== "page") return;
@@ -97,7 +98,10 @@ import ConsoleExecutor, {
 		children: [
 			$input,
 			tag("c-input-actions", {
-				children: [$executionContext, $stopExecution],
+				children: [
+					...(isStandaloneConsole ? [] : [$executionContext]),
+					$stopExecution,
+				],
 			}),
 		],
 	});
@@ -209,7 +213,7 @@ import ConsoleExecutor, {
 	async function runStartupScript() {
 		if (!startupScriptUrl) return;
 
-		setExecutionState(true, "worker");
+		setExecutionState(true);
 		const result = await executeConsoleScript({
 			scriptUrl: startupScriptUrl,
 			workerExecutor: executor,
@@ -448,10 +452,10 @@ import ConsoleExecutor, {
 		$input.focus();
 	}
 
-	function setExecutionState(running, context = $executionContext.value) {
+	function setExecutionState(running) {
 		isExecuting = running;
 		$console.toggleAttribute("running", running);
-		$stopExecution.hidden = !running || context !== "worker";
+		$stopExecution.hidden = !running || $executionContext.value !== "worker";
 		$input.disabled = running;
 		$executionContext.disabled = running;
 	}
@@ -861,7 +865,10 @@ import ConsoleExecutor, {
 
 	function executeCommand(code) {
 		return executeConsoleCommand({
-			context: $executionContext.value,
+			context: resolveConsoleExecutionContext(
+				isStandaloneConsole,
+				$executionContext.value,
+			),
 			code,
 			workerExecutor: executor,
 			pageExecutor: execute,

src/lib/consoleRuntime.js

@@ -164,12 +164,19 @@ export function applyConsoleViewport(element, windowObject = window) {
 	element.style.setProperty("--console-viewport-left", `${left}px`);
 }
 
+export function resolveConsoleExecutionContext(
+	isStandaloneConsole,
+	selectedContext,
+) {
+	return isStandaloneConsole ? "worker" : selectedContext;
+}
+
 /**
  * Routes a console command to the isolated worker or the live preview page.
- * Page execution keeps browser objects inspectable; workers isolate scripts.
+ * Page execution is deliberately opt-in because it runs on the preview thread.
  */
 export function executeConsoleCommand({
-	context = "page",
+	context,
 	code,
 	workerExecutor,
 	pageExecutor,

tests/unit/consoleExecutionContext.test.js

@@ -2,10 +2,16 @@ import { describe, expect, it } from "vitest";
 import {
 	executeConsoleCommand,
 	executeConsoleScript,
+	resolveConsoleExecutionContext,
 } from "lib/consoleRuntime";
 
 describe("console execution context", () => {
-	it("uses isolated worker execution when selected", async () => {
+	it("forces standalone menu consoles to use the worker", () => {
+		expect(resolveConsoleExecutionContext(true, "page")).toBe("worker");
+		expect(resolveConsoleExecutionContext(false, "page")).toBe("page");
+	});
+
+	it("uses isolated worker execution by default", async () => {
 		const calls = [];
 		const result = await executeConsoleCommand({
 			context: "worker",
@@ -25,9 +31,10 @@ describe("console execution context", () => {
 		expect(result.value).toBe("isolated");
 	});
 
-	it("evaluates interactive commands in the live page by default", async () => {
+	it("restores live page execution when explicitly selected", async () => {
 		const calls = [];
 		const result = await executeConsoleCommand({
+			context: "page",
 			code: 'document.querySelector("main")',
 			workerExecutor: {
 				execute(code) {