Add movie collection API and frontend

Express app with an in-memory array as the store (no database) and three
endpoints:

- GET  /api/movies      -> the whole collection
- GET  /api/movies/:id  -> one movie, 404 when the id is unknown
- POST /api/movies      -> add a movie, id assigned by the server

zod schemas are the single source of truth for validation, so a missing
title, genre or year comes back as a 400 with one message per field.
index.html is served by the same app and drives all three endpoints with
fetch(), refreshing the list after a movie is added.

package.json

@@ -0,0 +1,15 @@
+{
+  "name": "bonpin-adrian-movie-api",
+  "version": "1.0.0",
+  "description": "A simple movie collection REST API (Node.js + Express) with a frontend.",
+  "type": "module",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "node --watch server.js"
+  },
+  "dependencies": {
+    "express": "^5.1.0",
+    "zod": "^4.6.5"
+  }
+}