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-squirrel.min.js

@@ -0,0 +1 @@
+Prism.languages.squirrel=Prism.languages.extend("clike",{comment:[Prism.languages.clike.comment[0],{pattern:/(^|[^\\:])(?:\/\/|#).*/,lookbehind:!0,greedy:!0}],string:{pattern:/(^|[^\\"'@])(?:@"(?:[^"]|"")*"(?!")|"(?:[^\\\r\n"]|\\.)*")/,lookbehind:!0,greedy:!0},"class-name":{pattern:/(\b(?:class|enum|extends|instanceof)\s+)\w+(?:\.\w+)*/,lookbehind:!0,inside:{punctuation:/\./}},keyword:/\b(?:__FILE__|__LINE__|base|break|case|catch|class|clone|const|constructor|continue|default|delete|else|enum|extends|for|foreach|function|if|in|instanceof|local|null|resume|return|static|switch|this|throw|try|typeof|while|yield)\b/,number:/\b(?:0x[0-9a-fA-F]+|\d+(?:\.(?:\d+|[eE][+-]?\d+))?)\b/,operator:/\+\+|--|<=>|<[-<]|>>>?|&&?|\|\|?|[-+*/%!=<>]=?|[~^]|::?/,punctuation:/[(){}\[\],;.]/}),Prism.languages.insertBefore("squirrel","string",{char:{pattern:/(^|[^\\"'])'(?:[^\\']|\\(?:[xuU][0-9a-fA-F]{0,8}|[\s\S]))'/,lookbehind:!0,greedy:!0}}),Prism.languages.insertBefore("squirrel","operator",{"attribute-punctuation":{pattern:/<\/|\/>/,alias:"important"},lambda:{pattern:/@(?=\()/,alias:"operator"}});