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/vfile-location/index.d.ts

@@ -0,0 +1,47 @@
+import type {Point as UnistPoint} from 'unist'
+
+export {location} from './lib/index.js'
+
+/**
+ * Accessors for index.
+ */
+export interface Location {
+  /**
+   * Get the `offset` from a line/column based `Point` in the bound indices;
+   * returns `undefined` when given out of bounds input.
+   *
+   * @param point
+   *   Line/column based `Point`.
+   * @returns
+   *   Offset.
+   */
+  toOffset(point?: PointLike | null | undefined): number | undefined
+  /**
+   * Get the line/column based `Point` for `offset` in the bound indices;
+   * returns `undefined` when given out of bounds input.
+   *
+   * @param offset
+   *   Offset.
+   * @returns
+   *   `Point`.
+   */
+  toPoint(offset?: number | null | undefined): UnistPoint | undefined
+}
+
+/**
+ * Point from `unist`, allowed as input.
+ */
+interface PointLike {
+  /**
+   * Column.
+   */
+  column?: number | null | undefined
+  /**
+   * Line.
+   */
+  line?: number | null | undefined
+  /**
+   * Offset.
+   */
+  offset?: number | null | undefined
+}