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/@shikijs/engine-javascript/dist/engine-raw.d.mts

@@ -0,0 +1,13 @@
+import { RegexEngine } from "@shikijs/types";
+
+//#region src/engine-raw.d.ts
+/**
+ * Raw JavaScript regex engine that only supports precompiled grammars.
+ *
+ * This further simplifies the engine by excluding the regex compilation step.
+ *
+ * Zero dependencies.
+ */
+declare function createJavaScriptRawEngine(): RegexEngine;
+//#endregion
+export { createJavaScriptRawEngine };