Frontend uudelleenrakennettu: Astro-komponentit, Wasm pääsäikeessä, ei Workeria

Vanha frontend siirretty temp/. Uusi rakenne:
- StatusBar.astro, Terminal.astro, Editor.astro, Guide.astro
- global.css erillinen
- Wasm pääsäikeessä (ei Worker — yksinkertainen, debugattava)
- Tab-completion, dropdown, projektikortti, Monaco, GUIDE.md
- Ei tokenisointia eikä koodilaboratoriota

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

network-poc/frontend/node_modules/astro/templates/env.mjs

@@ -0,0 +1,39 @@
+// @ts-check
+import { schema } from 'virtual:astro:env/internal';
+import {
+	// biome-ignore lint/correctness/noUnusedImports: `_getEnv` is used by the generated code
+	getEnv as _getEnv,
+	createInvalidVariablesError,
+	getEnvFieldType,
+	setOnSetGetEnv,
+	validateEnvVariable,
+} from 'astro/env/runtime';
+
+// @ts-expect-error
+/** @returns {string} */
+// used while generating the virtual module
+// biome-ignore lint/correctness/noUnusedFunctionParameters: `key` is used by the generated code
+const getEnv = (key) => {
+	// @@GET_ENV@@
+};
+
+export const getSecret = (key) => {
+	return getEnv(key);
+};
+
+const _internalGetSecret = (key) => {
+	const rawVariable = getEnv(key);
+	const variable = rawVariable === '' ? undefined : rawVariable;
+	const options = schema[key];
+
+	const result = validateEnvVariable(variable, options);
+	if (result.ok) {
+		return result.value;
+	}
+	const type = getEnvFieldType(options);
+	throw createInvalidVariablesError(key, type, result);
+};
+
+setOnSetGetEnv(() => {
+	// @@ON_SET_GET_ENV@@
+});