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/array-iterate/lib/index.d.ts

@@ -0,0 +1,24 @@
+/**
+ * Perform the specified action for each element in an array.
+ * When `callbackFn` returns a `number`, moves to the element at that index
+ * next.
+ *
+ * @param {unknown[]} values
+ *   Values to iterate over.
+ * @param {(this: unknown, value: unknown, index: number, array: unknown[]) => number | void} callbackFn
+ *   Function called for each element.
+ *   Can return the `index` to move to next.
+ * @param {unknown} [thisArg]
+ *   Optional object assigned as `this` in `callbackFn`.
+ * @returns {void}
+ */
+export function arrayIterate(
+  values: unknown[],
+  callbackFn: (
+    this: unknown,
+    value: unknown,
+    index: number,
+    array: unknown[]
+  ) => number | void,
+  thisArg?: unknown
+): void