docs + chore(workplan): complete T05 for CYA-WP-0004 — lightweight release process (checklist + Makefile targets)

Makefile

@@ -1,7 +1,7 @@
 # Simple developer Makefile for can-you-assist
 # Focus: easy dev-head install and common tasks
 
-.PHONY: dev-install install test clean dist
+.PHONY: dev-install install test clean dist version release-prep check-dist
 
 # Install the package in editable mode from the current source
 # This is the recommended way to work on the latest code
@@ -27,4 +27,19 @@ dist: clean
 
 # Show current version (useful after setuptools_scm changes)
 version:
-	python3 -c "import cya; print(cya.__version__)"
+	python3 -c "import cya; print(cya.__version__)"
+
+# Prepare for a release (run tests + build clean artifacts)
+release-prep: clean test dist
+	@echo ""
+	@echo "Release artifacts ready in dist/"
+	@echo "Next steps: create annotated git tag and push it."
+
+# Verify the built wheel in an isolated environment
+check-dist:
+	@echo "Testing wheel in fresh venv..."
+	@python3 -m venv /tmp/cya-dist-check
+	@/tmp/cya-dist-check/bin/pip install dist/can_you_assist-*.whl --quiet
+	@/tmp/cya-dist-check/bin/cya --version
+	@rm -rf /tmp/cya-dist-check
+	@echo "Wheel verification successful."