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/parse5/dist/common/token.js

@@ -0,0 +1,20 @@
+export var TokenType;
+(function (TokenType) {
+    TokenType[TokenType["CHARACTER"] = 0] = "CHARACTER";
+    TokenType[TokenType["NULL_CHARACTER"] = 1] = "NULL_CHARACTER";
+    TokenType[TokenType["WHITESPACE_CHARACTER"] = 2] = "WHITESPACE_CHARACTER";
+    TokenType[TokenType["START_TAG"] = 3] = "START_TAG";
+    TokenType[TokenType["END_TAG"] = 4] = "END_TAG";
+    TokenType[TokenType["COMMENT"] = 5] = "COMMENT";
+    TokenType[TokenType["DOCTYPE"] = 6] = "DOCTYPE";
+    TokenType[TokenType["EOF"] = 7] = "EOF";
+    TokenType[TokenType["HIBERNATION"] = 8] = "HIBERNATION";
+})(TokenType || (TokenType = {}));
+export function getTokenAttr(token, attrName) {
+    for (let i = token.attrs.length - 1; i >= 0; i--) {
+        if (token.attrs[i].name === attrName) {
+            return token.attrs[i].value;
+        }
+    }
+    return null;
+}