feat: install medical-records package when --qe is used

When `dbx project add --qe` is run, call `_ensure_package_installed`
for `medical_records` after the project is created and dependencies are
installed. Prefers a local clone at base_dir/medical-records (or
base_dir/django/medical-records) over PyPI, consistent with how
`run_project` handles django_mongodb_extensions.

Author: aclark4life

src/dbx_python_cli/commands/project.py

@@ -596,6 +596,14 @@ def add_project(
         except Exception as e:
             typer.echo(f"⚠️  --with install failed: {e}", err=True)
 
+    if add_qe:
+        try:
+            _ensure_package_installed(
+                "medical_records", python_path, get_base_dir(get_config())
+            )
+        except Exception as e:
+            typer.echo(f"⚠️  Failed to install medical-records: {e}", err=True)
+
 
 def _install_with_repos(
     repo_names: List[str], python_path: str, verbose: bool = False