Replace hardcoded python3.13 paths with dynamic version detection

[github-actions]

These paths need manual updates when upgrading to Python 3.14+

tux/Containerfile

Lines 202 to 203 in dd4fddd

	# TODO: Replace hardcoded python3.13 paths with dynamic version detection
	# These paths need manual updates when upgrading to Python 3.14+

USER root

# TODO: Replace hardcoded python3.13 paths with dynamic version detection
# These paths need manual updates when upgrading to Python 3.14+
RUN set -eux; \
        find /app/.venv -name "*.pyc" -delete; \
        find /app/.venv -name "__pycache__" -type d -exec rm -rf {} + 2>/dev/null || true; \