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/unist-util-position/lib/index.js

@@ -0,0 +1,95 @@
+/**
+ * @typedef {import('unist').Node} Node
+ * @typedef {import('unist').Point} Point
+ * @typedef {import('unist').Position} Position
+ */
+
+/**
+ * @typedef NodeLike
+ * @property {string} type
+ * @property {PositionLike | null | undefined} [position]
+ *
+ * @typedef PositionLike
+ * @property {PointLike | null | undefined} [start]
+ * @property {PointLike | null | undefined} [end]
+ *
+ * @typedef PointLike
+ * @property {number | null | undefined} [line]
+ * @property {number | null | undefined} [column]
+ * @property {number | null | undefined} [offset]
+ */
+
+/**
+ * Get the ending point of `node`.
+ *
+ * @param node
+ *   Node.
+ * @returns
+ *   Point.
+ */
+export const pointEnd = point('end')
+
+/**
+ * Get the starting point of `node`.
+ *
+ * @param node
+ *   Node.
+ * @returns
+ *   Point.
+ */
+export const pointStart = point('start')
+
+/**
+ * Get the positional info of `node`.
+ *
+ * @param {'end' | 'start'} type
+ *   Side.
+ * @returns
+ *   Getter.
+ */
+function point(type) {
+  return point
+
+  /**
+   * Get the point info of `node` at a bound side.
+   *
+   * @param {Node | NodeLike | null | undefined} [node]
+   * @returns {Point | undefined}
+   */
+  function point(node) {
+    const point = (node && node.position && node.position[type]) || {}
+
+    if (
+      typeof point.line === 'number' &&
+      point.line > 0 &&
+      typeof point.column === 'number' &&
+      point.column > 0
+    ) {
+      return {
+        line: point.line,
+        column: point.column,
+        offset:
+          typeof point.offset === 'number' && point.offset > -1
+            ? point.offset
+            : undefined
+      }
+    }
+  }
+}
+
+/**
+ * Get the positional info of `node`.
+ *
+ * @param {Node | NodeLike | null | undefined} [node]
+ *   Node.
+ * @returns {Position | undefined}
+ *   Position.
+ */
+export function position(node) {
+  const start = pointStart(node)
+  const end = pointEnd(node)
+
+  if (start && end) {
+    return {start, end}
+  }
+}