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/prismjs/plugins/command-line/prism-command-line.css

@@ -0,0 +1,43 @@
+.command-line-prompt {
+	border-right: 1px solid #999;
+	display: block;
+	float: left;
+	font-size: 100%;
+	letter-spacing: -1px;
+	margin-right: 1em;
+	pointer-events: none;
+	text-align: right;
+
+	-webkit-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+}
+
+.command-line-prompt > span:before {
+	opacity: 0.7;
+	content: ' ';
+	display: block;
+	padding-right: 0.8em;
+}
+
+.command-line-prompt > span[data-user]:before {
+	content: "[" attr(data-user) "@" attr(data-host) "] $";
+}
+
+.command-line-prompt > span[data-user="root"]:before {
+	content: "[" attr(data-user) "@" attr(data-host) "] #";
+}
+
+.command-line-prompt > span[data-prompt]:before {
+	content: attr(data-prompt);
+}
+
+.command-line-prompt > span[data-continuation-prompt]:before {
+	content: attr(data-continuation-prompt);
+}
+
+.command-line span.token.output {
+	/* Make shell output lines a bit lighter to distinguish them from shell commands */
+	opacity: 0.7;
+}