Scaffold Tauri app with local-first recording UI.

Add React frontend and Rust backend stubs for MP3 import, metadata, SQLite storage, and transcription hooks.

src-tauri/tauri.conf.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "https://schema.tauri.app/config/2",
+  "productName": "mp3Transriber",
+  "version": "0.1.0",
+  "identifier": "com.ben.mp3transriber",
+  "build": {
+    "beforeDevCommand": "npm run dev",
+    "beforeBuildCommand": "npm run build",
+    "frontendDist": "../dist",
+    "devUrl": "http://localhost:5173"
+  },
+  "app": {
+    "windows": [
+      {
+        "title": "mp3Transriber",
+        "width": 1320,
+        "height": 860,
+        "resizable": true
+      }
+    ],
+    "security": {
+      "csp": "default-src 'self'; connect-src ipc: http://ipc.localhost; img-src 'self' asset: http://asset.localhost; style-src 'self' 'unsafe-inline'; script-src 'self'"
+    }
+  },
+  "bundle": {
+    "active": true,
+    "targets": "all"
+  }
+}