GRM-23: fix: improve make setup with version guard, pre-push hooks and commit-msg validator

Makefile

@@ -12,7 +12,16 @@ setup: $(VENV)/bin/activate .env activate-scripts checkmake
 	$(BIN)/ansible-galaxy collection install -r ansible/requirements.yml
 	$(BIN)/pre-commit install
 	$(BIN)/pre-commit install --hook-type commit-msg
-	@echo "Setup complete. Activate the virtual environment with: source .venv/bin/activate"
+	$(BIN)/pre-commit install --hook-type pre-push
+	@echo ""
+	@echo "Setup complete."
+	@echo "Activate the virtual environment with one of:"
+	@echo "  source .venv/bin/activate    (generic)"
+	@echo "  source activate.sh           (bash)"
+	@echo "  source activate.fish         (fish)"
+	@echo "  source activate.zsh          (zsh)"
+	@-$(BIN)/grm --version
+	@-$(BIN)/pre-commit --version
 
 .env:
 	@if [ ! -f .env ]; then \
@@ -21,6 +30,7 @@ setup: $(VENV)/bin/activate .env activate-scripts checkmake
 	fi
 
 $(VENV)/bin/activate:
+	@python3 -c "import sys; v=sys.version_info; assert v >= (3, 11), f'Python 3.11+ required, found {v.major}.{v.minor}'; print(f'Python {v.major}.{v.minor}.{v.micro} OK')"
 	$(PYTHON) -m venv $(VENV)
 	$(BIN)/pip install --upgrade pip setuptools wheel