add .devcontainer (#121)

Author: fbnrst

{{cookiecutter.stack_name}}/.devcontainer/Dockerfile

@@ -0,0 +1,5 @@
+FROM mcr.microsoft.com/devcontainers/python:3.13
+
+COPY requirements-dev.txt /tmp/requirements-test.txt
+
+RUN pip install --no-cache-dir -r /tmp/requirements-test.txt

{{cookiecutter.stack_name}}/.devcontainer/devcontainer.json

@@ -0,0 +1,27 @@
+{
+  "name": "Jupyter Cookiecutter Docker Stacks",
+  "build": {
+    "context": "..",
+    "dockerfile": "Dockerfile"
+  },
+
+  "features": {
+    "ghcr.io/devcontainers/features/docker-in-docker:2": {
+      "moby": false
+    }
+  },
+
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "github.copilot-chat",
+        "github.copilot",
+        "github.vscode-github-actions",
+        "github.vscode-pull-request-github",
+        "ms-azuretools.vscode-containers",
+        "ms-azuretools.vscode-docker",
+        "ms-python.autopep8"
+      ]
+    }
+  }
+}