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/common-ancestor-path/README.md

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+# common-ancestor-path
+
+Find the common ancestor of 2 or more paths on Windows or Unix
+
+## USAGE
+
+Give it two or more path strings, and it'll do the thing.
+
+```ts
+import { commonAncestorPath } from 'common-ancestor-path'
+// or:
+// const { commonAncestorPath } = require('common-ancestor-path')
+
+// output /a/b
+console.log(commonAncestorPath('/a/b/c/d', '/a/b/x/y/z', '/a/b/c/i/j/k'))
+
+// normalizes separators, but NOT cases, since it matters sometimes
+console.log(commonAncestorPath('C:\\a\\b\\c', 'C:\\a\\b\\x'))
+
+// no common ancestor on different windows drive letters
+// so, this returns null
+console.log(commonAncestorPath('c:\\a\\b\\c', 'd:\\d\\e\\f'))
+```
+
+## API
+
+`commonAncestorPath(...paths)`
+
+Returns the nearest (deepest) common ancestor path, or `null` if on
+different roots on Windows.