add vscode debug option

.vscode/launch.json

@@ -0,0 +1,23 @@
+{
+	// Use IntelliSense to learn about possible attributes.
+	// Hover to view descriptions of existing attributes.
+	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+	"version": "0.2.0",
+
+	"configurations": [
+		{
+			"command": "npm run dev",
+			"name": "Debug SvelteKit",
+			"request": "launch",
+			"type": "node-terminal",
+			"cwd": "${workspaceFolder}"
+		},
+		{
+			"name": "Attach by Process ID",
+			"processId": "${command:PickProcess}",
+			"request": "attach",
+			"skipFiles": ["<node_internals>/**"],
+			"type": "pwa-node"
+		}
+	]
+}