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/http-cache-semantics/package.json

@@ -0,0 +1,22 @@
+{
+    "name": "http-cache-semantics",
+    "version": "4.2.0",
+    "description": "Parses Cache-Control and other headers. Helps building correct HTTP caches and proxies",
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/kornelski/http-cache-semantics.git"
+    },
+    "main": "index.js",
+    "types": "index.js",
+    "scripts": {
+        "test": "mocha"
+    },
+    "files": [
+        "index.js"
+    ],
+    "author": "Kornel Lesiński <npms2@geekhood.net> (https://kornel.ski/)",
+    "license": "BSD-2-Clause",
+    "devDependencies": {
+        "mocha": "^11.0"
+    }
+}