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/@astrojs/internal-helpers/dist/remote.js

@@ -0,0 +1,66 @@
+function matchPattern(url, remotePattern) {
+  return matchProtocol(url, remotePattern.protocol) && matchHostname(url, remotePattern.hostname, true) && matchPort(url, remotePattern.port) && matchPathname(url, remotePattern.pathname, true);
+}
+function matchPort(url, port) {
+  return !port || port === url.port;
+}
+function matchProtocol(url, protocol) {
+  return !protocol || protocol === url.protocol.slice(0, -1);
+}
+function matchHostname(url, hostname, allowWildcard = false) {
+  if (!hostname) {
+    return true;
+  } else if (!allowWildcard || !hostname.startsWith("*")) {
+    return hostname === url.hostname;
+  } else if (hostname.startsWith("**.")) {
+    const slicedHostname = hostname.slice(2);
+    return slicedHostname !== url.hostname && url.hostname.endsWith(slicedHostname);
+  } else if (hostname.startsWith("*.")) {
+    const slicedHostname = hostname.slice(1);
+    if (!url.hostname.endsWith(slicedHostname)) {
+      return false;
+    }
+    const subdomainWithDot = url.hostname.slice(0, -(slicedHostname.length - 1));
+    return subdomainWithDot.endsWith(".") && !subdomainWithDot.slice(0, -1).includes(".");
+  }
+  return false;
+}
+function matchPathname(url, pathname, allowWildcard = false) {
+  if (!pathname) {
+    return true;
+  } else if (!allowWildcard || !pathname.endsWith("*")) {
+    return pathname === url.pathname;
+  } else if (pathname.endsWith("/**")) {
+    const slicedPathname = pathname.slice(0, -2);
+    return slicedPathname !== url.pathname && url.pathname.startsWith(slicedPathname);
+  } else if (pathname.endsWith("/*")) {
+    const slicedPathname = pathname.slice(0, -1);
+    if (!url.pathname.startsWith(slicedPathname)) {
+      return false;
+    }
+    const additionalPathChunks = url.pathname.slice(slicedPathname.length).split("/").filter(Boolean);
+    return additionalPathChunks.length === 1;
+  }
+  return false;
+}
+function isRemoteAllowed(src, {
+  domains,
+  remotePatterns
+}) {
+  if (!URL.canParse(src)) {
+    return false;
+  }
+  const url = new URL(src);
+  if (!["http:", "https:", "data:"].includes(url.protocol)) {
+    return false;
+  }
+  return domains.some((domain) => matchHostname(url, domain)) || remotePatterns.some((remotePattern) => matchPattern(url, remotePattern));
+}
+export {
+  isRemoteAllowed,
+  matchHostname,
+  matchPathname,
+  matchPattern,
+  matchPort,
+  matchProtocol
+};