fix: double tray icon + bundle resources pour MSI

- tauri.conf.json: supprimer trayIcon (géré par build_tray_menu dans main.rs → plus de double icône)
- tauri.conf.json: ajouter bundle.resources (python-embed/**, ../backend/**, ../frontend/**)
- build-windows.bat: echo ..>> dans _pth AVANT build Tauri (pour que le bundle ait le bon sys.path)

desktop/tauri.conf.json

@@ -28,12 +28,6 @@
     ],
     "security": {
       "csp": "default-src 'self' http://127.0.0.1:*; script-src 'self' 'unsafe-inline' 'unsafe-eval' http://127.0.0.1:* https://cdn.jsdelivr.net https://cdnjs.cloudflare.com https://unpkg.com https://esm.sh; style-src 'self' 'unsafe-inline' http://127.0.0.1:* https://cdnjs.cloudflare.com https://fonts.googleapis.com; font-src 'self' http://127.0.0.1:* https://fonts.gstatic.com; img-src 'self' data: blob: http://127.0.0.1:* https:; connect-src 'self' http://127.0.0.1:* ws://127.0.0.1:*;"
-    },
-    "trayIcon": {
-      "iconPath": "icons/icon.png",
-      "iconAsTemplate": true,
-      "tooltip": "ObsiGate",
-      "menuOnLeftClick": false
     }
   },
   "bundle": {
@@ -46,6 +40,11 @@
       "icons/icon.icns",
       "icons/icon.ico"
     ],
+    "resources": [
+      "python-embed/**/*",
+      "../backend/**/*",
+      "../frontend/**/*"
+    ],
     "fileAssociations": [
       {
         "ext": ["md", "markdown", "txt"],