init: media-center v2

Rewrite of ESH-Media v1 with separated main/renderer/shared architecture
(vite-plugin-electron, React 18, react-router-dom). Includes NeDB storage,
electron-store config, proxy manager with FoxyProxy/uBlock extensions,
custom server-checked updater, NSIS installer.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

config/sites.json

@@ -0,0 +1,33 @@
+{
+  "version": "1.0.0",
+  "lastUpdated": "2025-10-14T12:00:00Z",
+  "sites": [
+    {
+      "id": "kinogo",
+      "name": "Kinogo",
+      "url": "https://kinogo.biz",
+      "logo": "https://kinogo.biz/favicon.ico",
+      "enabled": true,
+      "useProxy": true,
+      "searchScript": "kinogo.js"
+    },
+    {
+      "id": "rutube",
+      "name": "Rutube",
+      "url": "https://rutube.ru",
+      "logo": "https://rutube.ru/favicon.ico",
+      "enabled": true,
+      "useProxy": false,
+      "searchScript": "rutube.js"
+    },
+    {
+      "id": "hdrezka",
+      "name": "HDRezka",
+      "url": "https://hdrezka.ag",
+      "logo": "https://hdrezka.ag/favicon.ico",
+      "enabled": true,
+      "useProxy": true,
+      "searchScript": "hdrezka.js"
+    }
+  ]
+}