chore: add dev container config

.devcontainer/devcontainer.json

@@ -0,0 +1,26 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.209.6/containers/javascript-node
+{
+	"name": "Node.js",
+	"build": {
+		"dockerfile": "Dockerfile",
+		// Update 'VARIANT' to pick a Node version: 16, 14, 12.
+		// Append -bullseye or -buster to pin to an OS version.
+		// Use -bullseye variants on local arm64/Apple Silicon.
+		"args": {
+			"VARIANT": "16-bullseye"
+		}
+	},
+	// Set *default* container specific settings.json values on container create.
+	"settings": {},
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"dbaeumer.vscode-eslint"
+	],
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "pnpm install",
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "node"
+}