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-gdscript.min.js

@@ -0,0 +1 @@
+Prism.languages.gdscript={comment:/#.*/,string:{pattern:/@?(?:("|')(?:(?!\1)[^\n\\]|\\[\s\S])*\1(?!"|')|"""(?:[^\\]|\\[\s\S])*?""")/,greedy:!0},"class-name":{pattern:/(^(?:class|class_name|extends)[ \t]+|^export\([ \t]*|\bas[ \t]+|(?:\b(?:const|var)[ \t]|[,(])[ \t]*\w+[ \t]*:[ \t]*|->[ \t]*)[a-zA-Z_]\w*/m,lookbehind:!0},keyword:/\b(?:and|as|assert|break|breakpoint|class|class_name|const|continue|elif|else|enum|export|extends|for|func|if|in|is|master|mastersync|match|not|null|onready|or|pass|preload|puppet|puppetsync|remote|remotesync|return|self|setget|signal|static|tool|var|while|yield)\b/,function:/\b[a-z_]\w*(?=[ \t]*\()/i,variable:/\$\w+/,number:[/\b0b[01_]+\b|\b0x[\da-fA-F_]+\b|(?:\b\d[\d_]*(?:\.[\d_]*)?|\B\.[\d_]+)(?:e[+-]?[\d_]+)?\b/,/\b(?:INF|NAN|PI|TAU)\b/],constant:/\b[A-Z][A-Z_\d]*\b/,boolean:/\b(?:false|true)\b/,operator:/->|:=|&&|\|\||<<|>>|[-+*/%&|!<>=]=?|[~^]/,punctuation:/[.:,;()[\]{}]/};