feat(dev-env): add vscode devcontainer

.devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/dotnet
+{
+  "name": "t4 DevEnv",
+  // Use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+
+  // Features to add to the dev container. More info: https://containers.dev/features.
+  // "features": {},
+
+  // 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": "sudo pwsh -Command \"Install-Module -Name PSScriptAnalyzer -Force -Scope AllUsers\"",
+
+  // Configure tool-specific properties.
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "streetsidesoftware.code-spell-checker",
+        "DavidAnson.vscode-markdownlint",
+        "ms-dotnettools.csdevkit",
+        "EditorConfig.EditorConfig"
+      ]
+    }
+  }
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
+}

Dockerfile

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+# syntax=docker/dockerfile:1
+
+ARG DOTNET_VERSION=7.0
+ARG DEBIAN_VERSION=bookworm
+
+FROM mcr.microsoft.com/devcontainers/dotnet:1-${DOTNET_VERSION}-${DEBIAN_VERSION}
+
+RUN <<EOT
+    set -eu
+
+    DEBIAN_FRONTEND=noninteractive
+
+    apt-get update
+    apt-get install -y \
+        dos2unix
+
+    apt-get autoremove -y
+    apt-get clean
+    rm -rf /var/lib/apt/lists/*
+EOT
+
+ENTRYPOINT ["/bin/bash"]