refactor(build): run venv-dependent scripts via 'uv run python'

The architecture validators (validate_cqrs.py, check_architecture.py) import
PyYAML but were invoked as bare ./script.py, i.e. under the system Python with
no venv — so they failed with ModuleNotFoundError once dependency setup stopped
leaving the venv active.  Invoke every venv-dependent project script via
'uv run python ./...' (matching ci-arch-imports).  Bootstrap scripts that must
run before the venv exists stay bare; installed console tools keep using
run-tool.

Author: fgogolli

makefiles/ci.mk

@@ -26,21 +26,24 @@ ci-quality: ci-quality-ruff ci-quality-pyright  ## Run all enforced code quality
 ci-quality-full: ci-quality-ruff ci-quality-ruff-optional ci-quality-pyright  ## Run all code quality checks including optional
 
 # Individual architecture quality targets (with tool names)
+# Run the validators via `uv run` so they use the project venv (which has
+# PyYAML etc.), not the ambient system Python.  A bare `./script.py` relied on
+# the venv being pre-activated by an earlier step, which no longer holds.
 ci-arch-cqrs:  ## Run CQRS pattern validation
 	@echo "Running CQRS pattern validation..."
-	./dev-tools/quality/validate_cqrs.py
+	uv run python ./dev-tools/quality/validate_cqrs.py
 
 ci-arch-clean:  ## Run Clean Architecture dependency validation
 	@echo "Running Clean Architecture validation..."
-	./dev-tools/quality/check_architecture.py
+	uv run python ./dev-tools/quality/check_architecture.py
 
 ci-arch-imports: dev-install  ## Run import validation
 	@echo "Running import validation..."
 	uv run python ./dev-tools/quality/validate_imports.py
 
 ci-arch-file-sizes:  ## Check file size compliance
 	@echo "Running file size checks..."
-	./dev-tools/quality/dev_tools_runner.py check-file-sizes --warn-only
+	uv run python ./dev-tools/quality/dev_tools_runner.py check-file-sizes --warn-only
 
 ci-arch-lint-imports: dev-install  ## Run import-linter layer-boundary contracts
 	@echo "Running import-linter layer-boundary checks..."

makefiles/quality.mk

@@ -119,12 +119,12 @@ security-scan: ; @$(MAKE) security
 # Architecture Quality Gates
 architecture-check: dev-install  ## Run architecture compliance checks
 	@echo "Running architecture quality checks..."
-	./dev-tools/quality/validate_cqrs.py --warn-only
-	./dev-tools/quality/check_architecture.py --warn-only
+	uv run python ./dev-tools/quality/validate_cqrs.py --warn-only
+	uv run python ./dev-tools/quality/check_architecture.py --warn-only
 
 architecture-report: dev-install  ## Generate detailed architecture report
 	@echo "Generating architecture dependency report..."
-	./dev-tools/quality/check_architecture.py --report
+	uv run python ./dev-tools/quality/check_architecture.py --report
 
 # Architecture Documentation Generation
 quality-gates: lint test architecture-check  ## Run all quality gates