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/micromark-factory-space/index.js

@@ -0,0 +1,64 @@
+/**
+ * @import {Effects, State, TokenType} from 'micromark-util-types'
+ */
+
+import { markdownSpace } from 'micromark-util-character';
+
+// To do: implement `spaceOrTab`, `spaceOrTabMinMax`, `spaceOrTabWithOptions`.
+
+/**
+ * Parse spaces and tabs.
+ *
+ * There is no `nok` parameter:
+ *
+ * *   spaces in markdown are often optional, in which case this factory can be
+ *     used and `ok` will be switched to whether spaces were found or not
+ * *   one line ending or space can be detected with `markdownSpace(code)` right
+ *     before using `factorySpace`
+ *
+ * ###### Examples
+ *
+ * Where `␉` represents a tab (plus how much it expands) and `␠` represents a
+ * single space.
+ *
+ * ```markdown
+ * ␉
+ * ␠␠␠␠
+ * ␉␠
+ * ```
+ *
+ * @param {Effects} effects
+ *   Context.
+ * @param {State} ok
+ *   State switched to when successful.
+ * @param {TokenType} type
+ *   Type (`' \t'`).
+ * @param {number | undefined} [max=Infinity]
+ *   Max (exclusive).
+ * @returns {State}
+ *   Start state.
+ */
+export function factorySpace(effects, ok, type, max) {
+  const limit = max ? max - 1 : Number.POSITIVE_INFINITY;
+  let size = 0;
+  return start;
+
+  /** @type {State} */
+  function start(code) {
+    if (markdownSpace(code)) {
+      effects.enter(type);
+      return prefix(code);
+    }
+    return ok(code);
+  }
+
+  /** @type {State} */
+  function prefix(code) {
+    if (markdownSpace(code) && size++ < limit) {
+      effects.consume(code);
+      return prefix;
+    }
+    effects.exit(type);
+    return ok(code);
+  }
+}