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/themes/dist/index.mjs

@@ -0,0 +1,67 @@
+export const themeNames = [
+  'andromeeda',
+  'aurora-x',
+  'ayu-dark',
+  'ayu-light',
+  'ayu-mirage',
+  'catppuccin-frappe',
+  'catppuccin-latte',
+  'catppuccin-macchiato',
+  'catppuccin-mocha',
+  'dark-plus',
+  'dracula',
+  'dracula-soft',
+  'everforest-dark',
+  'everforest-light',
+  'github-dark',
+  'github-dark-default',
+  'github-dark-dimmed',
+  'github-dark-high-contrast',
+  'github-light',
+  'github-light-default',
+  'github-light-high-contrast',
+  'gruvbox-dark-hard',
+  'gruvbox-dark-medium',
+  'gruvbox-dark-soft',
+  'gruvbox-light-hard',
+  'gruvbox-light-medium',
+  'gruvbox-light-soft',
+  'horizon',
+  'horizon-bright',
+  'houston',
+  'kanagawa-dragon',
+  'kanagawa-lotus',
+  'kanagawa-wave',
+  'laserwave',
+  'light-plus',
+  'material-theme',
+  'material-theme-darker',
+  'material-theme-lighter',
+  'material-theme-ocean',
+  'material-theme-palenight',
+  'min-dark',
+  'min-light',
+  'monokai',
+  'night-owl',
+  'night-owl-light',
+  'nord',
+  'one-dark-pro',
+  'one-light',
+  'plastic',
+  'poimandres',
+  'red',
+  'rose-pine',
+  'rose-pine-dawn',
+  'rose-pine-moon',
+  'slack-dark',
+  'slack-ochin',
+  'snazzy-light',
+  'solarized-dark',
+  'solarized-light',
+  'synthwave-84',
+  'tokyo-night',
+  'vesper',
+  'vitesse-black',
+  'vitesse-dark',
+  'vitesse-light',
+]