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/parse-latin/lib/plugin/remove-empty-nodes.js

@@ -0,0 +1,23 @@
+/**
+ * @typedef {import('nlcst').Paragraph} Paragraph
+ * @typedef {import('nlcst').Root} Root
+ */
+
+import {modifyChildren} from 'unist-util-modify-children'
+
+// Remove empty children.
+export const removeEmptyNodes = modifyChildren(
+  /**
+   * @type {import('unist-util-modify-children').Modifier<Paragraph | Root>}
+   */
+
+  function (child, index, parent) {
+    if ('children' in child && child.children.length === 0) {
+      parent.children.splice(index, 1)
+
+      // Next, iterate over the node *now* at the current position (which was the
+      // next node).
+      return index
+    }
+  }
+)