Add devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1,3 @@
+FROM mcr.microsoft.com/devcontainers/base:debian
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+RUN curl --proto '=https' --tlsv1.2 -sSf https://just.systems/install.sh | bash -s -- --to /usr/local/bin

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+{
+  "name": "rendercv",
+  "build": { "dockerfile": "Dockerfile" },
+  "postCreateCommand": "uv sync --all-extras",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-python.debugpy",
+        "charliermarsh.ruff",
+        "ms-python.black-formatter",
+        "astral-sh.ty",
+        "tombi-toml.tombi",
+        "redhat.vscode-yaml",
+        "myriad-dreamin.tinymist"
+      ]
+    }
+  }
+}