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/ccount/index.js

@@ -0,0 +1,27 @@
+/**
+ * Count how often a character (or substring) is used in a string.
+ *
+ * @param {string} value
+ *   Value to search in.
+ * @param {string} character
+ *   Character (or substring) to look for.
+ * @return {number}
+ *   Number of times `character` occurred in `value`.
+ */
+export function ccount(value, character) {
+  const source = String(value)
+
+  if (typeof character !== 'string') {
+    throw new TypeError('Expected character')
+  }
+
+  let count = 0
+  let index = source.indexOf(character)
+
+  while (index !== -1) {
+    count++
+    index = source.indexOf(character, index + character.length)
+  }
+
+  return count
+}