feat: complete revolution architecture modernization

- Decoupled robust frontend into an Astro framework in `frontend/`.
- Replaced direct WebSocket broadcast with Smart Routing to distribute workload only to idle capable nodes, preventing 503 errors and duplicate responses.
- Rewrote WASM panic points (`unwrap()` handling) into panic-safe match blocks in qwen_coder.rs preventing Node Web Workers from crashing.
- Integrated robust dynamic Three.js 3D visualization.
- Resolved mermaid and THREE.js frontend hydration issues.

network-poc/frontend/.vscode/extensions.json

@@ -0,0 +1,4 @@
+{
+  "recommendations": ["astro-build.astro-vscode"],
+  "unwantedRecommendations": []
+}

network-poc/frontend/.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "command": "./node_modules/.bin/astro dev",
+      "name": "Development server",
+      "request": "launch",
+      "type": "node-terminal"
+    }
+  ]
+}