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/@shikijs/langs/dist/codeowners.mjs

@@ -0,0 +1,5 @@
+const lang = Object.freeze(JSON.parse("{\"displayName\":\"CODEOWNERS\",\"name\":\"codeowners\",\"patterns\":[{\"include\":\"#comment\"},{\"include\":\"#pattern\"},{\"include\":\"#owner\"}],\"repository\":{\"comment\":{\"patterns\":[{\"begin\":\"^\\\\s*#\",\"captures\":{\"0\":{\"name\":\"punctuation.definition.comment.codeowners\"}},\"end\":\"$\",\"name\":\"comment.line.codeowners\"}]},\"owner\":{\"match\":\"\\\\S*@\\\\S+\",\"name\":\"storage.type.function.codeowners\"},\"pattern\":{\"match\":\"^\\\\s*(\\\\S+)\",\"name\":\"variable.other.codeowners\"}},\"scopeName\":\"text.codeowners\"}"))
+
+export default [
+lang
+]