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/hast-util-to-html/lib/omission/omission.js

@@ -0,0 +1,44 @@
+/**
+ * @import {Element, Parents} from 'hast'
+ */
+
+/**
+ * @callback OmitHandle
+ *   Check if a tag can be omitted.
+ * @param {Element} element
+ *   Element to check.
+ * @param {number | undefined} index
+ *   Index of element in parent.
+ * @param {Parents | undefined} parent
+ *   Parent of element.
+ * @returns {boolean}
+ *   Whether to omit a tag.
+ *
+ */
+
+const own = {}.hasOwnProperty
+
+/**
+ * Factory to check if a given node can have a tag omitted.
+ *
+ * @param {Record<string, OmitHandle>} handlers
+ *   Omission handlers, where each key is a tag name, and each value is the
+ *   corresponding handler.
+ * @returns {OmitHandle}
+ *   Whether to omit a tag of an element.
+ */
+export function omission(handlers) {
+  return omit
+
+  /**
+   * Check if a given node can have a tag omitted.
+   *
+   * @type {OmitHandle}
+   */
+  function omit(node, index, parent) {
+    return (
+      own.call(handlers, node.tagName) &&
+      handlers[node.tagName](node, index, parent)
+    )
+  }
+}