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/csso/cjs/replace/index.cjs

@@ -0,0 +1,36 @@
+'use strict';
+
+const cssTree = require('css-tree');
+const Atrule = require('./Atrule.cjs');
+const AttributeSelector = require('./AttributeSelector.cjs');
+const Value = require('./Value.cjs');
+const Dimension = require('./Dimension.cjs');
+const Percentage = require('./Percentage.cjs');
+const _Number = require('./Number.cjs');
+const Url = require('./Url.cjs');
+const color = require('./color.cjs');
+
+const handlers = {
+    Atrule,
+    AttributeSelector,
+    Value,
+    Dimension,
+    Percentage,
+    Number: _Number.Number,
+    Url,
+    Hash: color.compressHex,
+    Identifier: color.compressIdent,
+    Function: color.compressFunction
+};
+
+function replace(ast) {
+    cssTree.walk(ast, {
+        leave(node, item, list) {
+            if (handlers.hasOwnProperty(node.type)) {
+                handlers[node.type].call(this, node, item, list);
+            }
+        }
+    });
+}
+
+module.exports = replace;