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/langs/dist/angular-let-declaration.mjs

@@ -0,0 +1,8 @@
+import angular_expression from './angular-expression.mjs'
+
+const lang = Object.freeze(JSON.parse("{\"injectTo\":[\"text.html.derivative\",\"text.html.derivative.ng\",\"source.ts.ng\"],\"injectionSelector\":\"L:text.html -comment -expression.ng -meta.tag -source.css -source.js\",\"name\":\"angular-let-declaration\",\"patterns\":[{\"include\":\"#letDeclaration\"}],\"repository\":{\"letDeclaration\":{\"begin\":\"(@let)\\\\s+([$_[:alpha:]][$_[:alnum:]]*)\\\\s*(=)?\",\"beginCaptures\":{\"1\":{\"name\":\"storage.type.ng\"},\"2\":{\"name\":\"variable.other.constant.ng\"},\"3\":{\"name\":\"keyword.operator.assignment.ng\"}},\"end\":\"(?<=;)\",\"name\":\"meta.definition.variable.ng\",\"patterns\":[{\"include\":\"#letInitializer\"}]},\"letInitializer\":{\"begin\":\"\\\\s*\",\"beginCaptures\":{\"0\":{\"name\":\"keyword.operator.assignment.ng\"}},\"contentName\":\"meta.definition.variable.initializer.ng\",\"end\":\";\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.terminator.statement.ng\"}},\"patterns\":[{\"include\":\"expression.ng\"}]}},\"scopeName\":\"template.let.ng\",\"embeddedLangs\":[\"angular-expression\"]}"))
+
+export default [
+...angular_expression,
+lang
+]