feat: add macOS ZCode runtime support #14560

Job	Run time
Resolve runner profiles	10s
Detect validation scopes	15s
Static gate	13s
Workspace unit tests	1m 6s
UI P0 smoke	39s
E2E Vitest	37s
Preflight	58s
Web workspace tests	37s
Playwright visual (settings-workspace)	46s
UI P0 (workspace-restoration)	41s
Playwright visual (entry-navigation)	41s
UI P0 (project-workspace)	44s
UI P0 (project-runtime)	45s
UI P0 (entry-settings)	48s
Playwright critical (${{ matrix.group }})	0s
Validate Nix flake	0s
Docker image build	0s
Windows tools-pack payload tests	0s
Validate workspace	5s
Runtime summary	7s
	9m 12s

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