feat: add Cleanflix Connector Tauri desktop app

Move the Mac Tauri UI (pro.cleanflix.connector) into this repo under desktop/. Bundled Node runtime stays gitignored; package scripts fetch it when building.

desktop/src-tauri/tauri.conf.json

@@ -0,0 +1,35 @@
+{
+  "$schema": "https://schema.tauri.app/config/2",
+    "productName": "Cleanflix Connector",
+  "version": "0.1.0",
+  "identifier": "pro.cleanflix.connector",
+  "build": {
+    "frontendDist": "../src"
+  },
+  "app": {
+    "withGlobalTauri": true,
+    "windows": [
+      {
+        "title": "Cleanflix Connector",
+        "width": 900,
+        "height": 780,
+        "minHeight": 700
+      }
+    ],
+    "security": {
+      "csp": null
+    }
+  },
+  "bundle": {
+    "active": true,
+    "targets": "all",
+    "resources": {"../sidecar": "sidecar"},
+    "icon": [
+      "icons/32x32.png",
+      "icons/128x128.png",
+      "icons/128x128@2x.png",
+      "icons/icon.icns",
+      "icons/icon.ico"
+    ]
+  }
+}