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/unstorage/drivers/vercel-runtime-cache.mjs

@@ -0,0 +1,71 @@
+import { defineDriver, normalizeKey, joinKeys } from "./utils/index.mjs";
+const DRIVER_NAME = "vercel-runtime-cache";
+export default defineDriver((opts) => {
+  const base = normalizeKey(opts?.base);
+  const r = (...keys) => joinKeys(base, ...keys);
+  let _cache;
+  const getClient = () => {
+    if (!_cache) {
+      _cache = getCache();
+    }
+    return _cache;
+  };
+  return {
+    name: DRIVER_NAME,
+    getInstance: getClient,
+    async hasItem(key) {
+      const value = await getClient().get(r(key));
+      return value !== void 0 && value !== null;
+    },
+    async getItem(key) {
+      const value = await getClient().get(r(key));
+      return value === void 0 ? null : value;
+    },
+    async setItem(key, value, tOptions) {
+      const ttl = tOptions?.ttl ?? opts?.ttl;
+      const tags = [...tOptions?.tags || [], ...opts?.tags || []].filter(
+        Boolean
+      );
+      await getClient().set(r(key), value, {
+        ttl,
+        tags
+      });
+    },
+    async removeItem(key) {
+      await getClient().delete(r(key));
+    },
+    async getKeys(_base) {
+      return [];
+    },
+    async clear(_base) {
+      if (opts?.tags && opts.tags.length > 0) {
+        await getClient().expireTag(opts.tags);
+      }
+    }
+  };
+});
+const SYMBOL_FOR_REQ_CONTEXT = /* @__PURE__ */ Symbol.for(
+  "@vercel/request-context"
+);
+function getContext() {
+  const fromSymbol = globalThis;
+  return fromSymbol[SYMBOL_FOR_REQ_CONTEXT]?.get?.() ?? {};
+}
+function getCache() {
+  const cache = getContext()?.cache || tryRequireVCFunctions()?.getCache?.({
+    keyHashFunction: (key) => key,
+    namespaceSeparator: ":"
+  });
+  if (!cache) {
+    throw new Error("Runtime cache is not available!");
+  }
+  return cache;
+}
+let _vcFunctionsLib;
+function tryRequireVCFunctions() {
+  if (!_vcFunctionsLib) {
+    const { createRequire } = globalThis.process?.getBuiltinModule?.("node:module") || {};
+    _vcFunctionsLib = createRequire?.(import.meta.url)("@vercel/functions");
+  }
+  return _vcFunctionsLib;
+}