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/fast-string-width/readme.md

@@ -0,0 +1,45 @@
+# Fast String Width
+
+A fast function for calculating the visual width of a string once printed to the terminal.
+
+See [`fast-string-truncated-width`](https://github.com/fabiospampinato/fast-string-truncated-width) for a lower-level version of this.
+
+## Install
+
+```sh
+npm install fast-string-width
+```
+
+## Usage
+
+```ts
+import fastStringWidth from 'fast-string-width';
+
+// The width of various classes of characters is configurable
+
+const options = {
+  ansiWidth: 0,
+  controlWidth: 0,
+  tabWidth: 8,
+  ambiguousWidth: 1,
+  emojiWidth: 2,
+  fullWidthWidth: 2,
+  regularWidth: 1,
+  wideWidth: 2
+};
+
+// Calculating the visual width of some strings
+
+fastStringWidth ( 'hello', options ); // => 5
+fastStringWidth ( '\x1b[31mhello', options ); // => 5
+fastStringWidth ( '👨‍👩‍👧‍👦', options ); // => 2
+fastStringWidth ( 'hello👨‍👩‍👧‍👦', options ); // => 7
+
+// Calculating the visual width while tweaking the width of emojis
+
+fastStringWidth ( '👶👶🏽', { ...options, emojiWidth: 1.5 } ); // => 3
+```
+
+## License
+
+MIT © Fabio Spampinato