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/mdast-util-to-hast/lib/handlers/table.js

@@ -0,0 +1,61 @@
+/**
+ * @import {Table} from 'mdast'
+ * @import {Element} from 'hast'
+ * @import {State} from '../state.js'
+ */
+
+import {pointEnd, pointStart} from 'unist-util-position'
+
+/**
+ * Turn an mdast `table` node into hast.
+ *
+ * @param {State} state
+ *   Info passed around.
+ * @param {Table} node
+ *   mdast node.
+ * @returns {Element}
+ *   hast node.
+ */
+export function table(state, node) {
+  const rows = state.all(node)
+  const firstRow = rows.shift()
+  /** @type {Array<Element>} */
+  const tableContent = []
+
+  if (firstRow) {
+    /** @type {Element} */
+    const head = {
+      type: 'element',
+      tagName: 'thead',
+      properties: {},
+      children: state.wrap([firstRow], true)
+    }
+    state.patch(node.children[0], head)
+    tableContent.push(head)
+  }
+
+  if (rows.length > 0) {
+    /** @type {Element} */
+    const body = {
+      type: 'element',
+      tagName: 'tbody',
+      properties: {},
+      children: state.wrap(rows, true)
+    }
+
+    const start = pointStart(node.children[1])
+    const end = pointEnd(node.children[node.children.length - 1])
+    if (start && end) body.position = {start, end}
+    tableContent.push(body)
+  }
+
+  /** @type {Element} */
+  const result = {
+    type: 'element',
+    tagName: 'table',
+    properties: {},
+    children: state.wrap(tableContent, true)
+  }
+  state.patch(node, result)
+  return state.applyData(node, result)
+}