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/dist/vite-plugin-overlay/index.d.ts

@@ -0,0 +1,2 @@
+import type { Plugin } from 'vite';
+export declare function vitePluginAstroServerClient(): Plugin;

network-poc/frontend/node_modules/astro/dist/vite-plugin-overlay/index.js

@@ -0,0 +1,21 @@
+import { ASTRO_VITE_ENVIRONMENT_NAMES } from "../core/constants.js";
+import { patchOverlay } from "../core/errors/overlay.js";
+function vitePluginAstroServerClient() {
+  return {
+    name: "astro:server-client",
+    applyToEnvironment(environment) {
+      return environment.name === ASTRO_VITE_ENVIRONMENT_NAMES.client;
+    },
+    transform: {
+      filter: {
+        id: /vite\/dist\/client\/client\.mjs/
+      },
+      handler(code) {
+        return patchOverlay(code);
+      }
+    }
+  };
+}
+export {
+  vitePluginAstroServerClient
+};