Initial commit: MixVideo Desktop v0.1.0

Features:
-  Cross-platform Tauri desktop application
-  React + TypeScript + Vite frontend
-  Rust backend with Tauri 2.0
-  Multi-package management (PNPM + Cargo workspaces)
-  GitHub Actions CI/CD pipeline
-  Modern project structure and configuration

 Build artifacts:
- Windows MSI and NSIS installers
- Cross-platform executable
- Automated release workflow

 Tech stack:
- Frontend: React 18 + TypeScript + Vite
- Backend: Rust + Tauri 2.0
- Package management: PNPM Workspace + Cargo Workspace
- CI/CD: GitHub Actions

apps/desktop/src/App.tsx

@@ -0,0 +1,51 @@
+import { useState } from "react";
+import reactLogo from "./assets/react.svg";
+import { invoke } from "@tauri-apps/api/core";
+import "./App.css";
+
+function App() {
+  const [greetMsg, setGreetMsg] = useState("");
+  const [name, setName] = useState("");
+
+  async function greet() {
+    // Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
+    setGreetMsg(await invoke("greet", { name }));
+  }
+
+  return (
+    <main className="container">
+      <h1>Welcome to Tauri + React</h1>
+
+      <div className="row">
+        <a href="https://vitejs.dev" target="_blank">
+          <img src="/vite.svg" className="logo vite" alt="Vite logo" />
+        </a>
+        <a href="https://tauri.app" target="_blank">
+          <img src="/tauri.svg" className="logo tauri" alt="Tauri logo" />
+        </a>
+        <a href="https://reactjs.org" target="_blank">
+          <img src={reactLogo} className="logo react" alt="React logo" />
+        </a>
+      </div>
+      <p>Click on the Tauri, Vite, and React logos to learn more.</p>
+
+      <form
+        className="row"
+        onSubmit={(e) => {
+          e.preventDefault();
+          greet();
+        }}
+      >
+        <input
+          id="greet-input"
+          onChange={(e) => setName(e.currentTarget.value)}
+          placeholder="Enter a name..."
+        />
+        <button type="submit">Greet</button>
+      </form>
+      <p>{greetMsg}</p>
+    </main>
+  );
+}
+
+export default App;