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/prismjs/components/prism-firestore-security-rules.min.js

@@ -0,0 +1 @@
+Prism.languages["firestore-security-rules"]=Prism.languages.extend("clike",{comment:/\/\/.*/,keyword:/\b(?:allow|function|if|match|null|return|rules_version|service)\b/,operator:/&&|\|\||[<>!=]=?|[-+*/%]|\b(?:in|is)\b/}),delete Prism.languages["firestore-security-rules"]["class-name"],Prism.languages.insertBefore("firestore-security-rules","keyword",{path:{pattern:/(^|[\s(),])(?:\/(?:[\w\xA0-\uFFFF]+|\{[\w\xA0-\uFFFF]+(?:=\*\*)?\}|\$\([\w\xA0-\uFFFF.]+\)))+/,lookbehind:!0,greedy:!0,inside:{variable:{pattern:/\{[\w\xA0-\uFFFF]+(?:=\*\*)?\}|\$\([\w\xA0-\uFFFF.]+\)/,inside:{operator:/=/,keyword:/\*\*/,punctuation:/[.$(){}]/}},punctuation:/\//}},method:{pattern:/(\ballow\s+)[a-z]+(?:\s*,\s*[a-z]+)*(?=\s*[:;])/,lookbehind:!0,alias:"builtin",inside:{punctuation:/,/}}});