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-jsstacktrace.min.js

@@ -0,0 +1 @@
+Prism.languages.jsstacktrace={"error-message":{pattern:/^\S.*/m,alias:"string"},"stack-frame":{pattern:/(^[ \t]+)at[ \t].*/m,lookbehind:!0,inside:{"not-my-code":{pattern:/^at[ \t]+(?!\s)(?:node\.js|<unknown>|.*(?:node_modules|\(<anonymous>\)|\(<unknown>|<anonymous>$|\(internal\/|\(node\.js)).*/m,alias:"comment"},filename:{pattern:/(\bat\s+(?!\s)|\()(?:[a-zA-Z]:)?[^():]+(?=:)/,lookbehind:!0,alias:"url"},function:{pattern:/(\bat\s+(?:new\s+)?)(?!\s)[_$a-zA-Z\xA0-\uFFFF<][.$\w\xA0-\uFFFF<>]*/,lookbehind:!0,inside:{punctuation:/\./}},punctuation:/[()]/,keyword:/\b(?:at|new)\b/,alias:{pattern:/\[(?:as\s+)?(?!\s)[_$a-zA-Z\xA0-\uFFFF][$\w\xA0-\uFFFF]*\]/,alias:"variable"},"line-number":{pattern:/:\d+(?::\d+)?\b/,alias:"number",inside:{punctuation:/:/}}}}};