feat: runnable bug reports

{{cookiecutter.project_name}}/.github/ISSUE_TEMPLATE/bug_report.yml

@@ -19,6 +19,31 @@ body:
     validations:
       required: true
 
+  - type: textarea
+    id: code
+    attributes:
+      label: Minimal code sample
+      description: |
+        Reproducible code sample. Must list dependencies in [inline script metadata][]. When put in a file named `issue.py` using [uv run][] i.e., `uv run issue.py`, should show the issue.
+
+        [uv run]: https://docs.astral.sh/uv/guides/scripts/#running-a-script-with-dependencies
+        [inline script metadata]: https://packaging.python.org/en/latest/specifications/inline-script-metadata/#example
+      render: python
+      value: |
+        ```python
+        # /// script
+        # requires-python = ">=3.12"
+        # dependencies = [
+        #   "{{cookiecutter.package_name}}@git+https://github.com/scverse/{{cookiecutter.project_name}}.git@main",
+        # ]
+        # ///
+        #
+        # This script automatically imports the development branch of {{cookiecutter.package_name}} to check for issues
+
+        import {{cookiecutter.package_name}}
+        # your reproducer code
+          ```
+
   - type: textarea
     id: versions
     attributes: