inital commit, basic functionality and streaming with server working

preload.js

@@ -0,0 +1,7 @@
+const { contextBridge } = require('electron');
+
+contextBridge.exposeInMainWorld('api', {
+  getMovies: () => fetch('http://localhost:8000/movies').then(r => r.json()),
+  getMovieDetails: (id) => fetch(`http://localhost:8000/movies/${id}`).then(r => r.json()),
+  getStreamUrl: (id) => `http://localhost:8000/stream/${id}`
+});