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/content/watcher.js

@@ -0,0 +1,38 @@
+function createWatcherWrapper(watcher) {
+  const listeners = /* @__PURE__ */ new Map();
+  const handler = {
+    get(target, prop, receiver) {
+      if (prop === "on") {
+        return function(event, callback) {
+          if (!listeners.has(event)) {
+            listeners.set(event, /* @__PURE__ */ new Set());
+          }
+          listeners.get(event).add(callback);
+          return Reflect.get(target, prop, receiver).call(target, event, callback);
+        };
+      }
+      if (prop === "off") {
+        return function(event, callback) {
+          listeners.get(event)?.delete(callback);
+          return Reflect.get(target, prop, receiver).call(target, event, callback);
+        };
+      }
+      if (prop === "removeAllTrackedListeners") {
+        return function() {
+          for (const [event, callbacks] of listeners.entries()) {
+            for (const callback of callbacks) {
+              target.off(event, callback);
+            }
+            callbacks.clear();
+          }
+          listeners.clear();
+        };
+      }
+      return Reflect.get(target, prop, receiver);
+    }
+  };
+  return new Proxy(watcher, handler);
+}
+export {
+  createWatcherWrapper
+};