feat: add VSCode/Cursor debug config using pwa-node

.vscode/launch.json

@@ -0,0 +1,14 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "pwa-node",
+      "request": "launch",
+      "name": "Debug (Next.js / no Turbopack",
+      "runtimeExecutable": "pnpm",
+      "runtimeArgs": ["exec", "next", "dev"],
+      "cwd": "${workspaceFolder}",
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}