feat: actionable internal-host allowlist error guidance for desktop/BYOK providers #14643

Job	Run time
Resolve runner profiles	13s
Detect validation scopes	18s
Static gate	12s
Preflight	32s
Web workspace tests	40s
E2E Vitest	39s
Workspace unit tests	32s
UI P0 smoke	27s
Playwright visual (settings-workspace)	40s
Playwright visual (entry-navigation)	28s
UI P0 (project-workspace)	40s
UI P0 (entry-settings)	27s
UI P0 (project-runtime)	41s
UI P0 (workspace-restoration)	38s
Playwright critical (${{ matrix.group }})	0s
Validate Nix flake	0s
Windows tools-pack payload tests	0s
Docker image build	0s
Validate workspace	6s
Runtime summary	9s
	7m 22s

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