feat(asahi): add AsahiBootChain rollback model and bootChain schema field#26
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…ield schemas/boot-release-set.schema.json: adds optional bootChain field to spec with type enum (asahi-m1n1-uboot-systemd-boot, uefi-systemd-boot, uefi-grub, coreboot, uboot-generic) and asahi sub-object (m1n1Version, ubootVersion, efiVarsMutable, rollbackTarget[string|null]) asahi_boot_chain.py: non-mutating model of the m1n1→U-Boot→systemd-boot chain; AsahiBootChainInfo.validate() enforces efiVarsMutable=false (mandatory on Apple Silicon); AsahiBootChain.detect_generations() reads NixOS profile symlinks; plan_rollback() returns AsahiRollbackPlan targeting most-recent previous generation; no subprocess calls, no disk writes examples/builder-aarch64-dev-release.example.json: Phase 0 fixture pointing at local Katello content server (127.0.0.1:8101) with Asahi boot chain, dev lifecycle environment, katello:SocioProphet/sourceos-builder-aarch64/dev release set ref 13 tests, all passing
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Summary
boot-release-set.schema.json: adds optionalbootChainfield with type enum andasahisub-object;rollbackTargetacceptsstring | nullasahi_boot_chain.py: non-mutating rollback model;validate()enforcesefiVarsMutable=false(mandatory on Apple Silicon — prevents EFI namespace conflict with macOS);detect_generations()reads NixOS profile symlinks;plan_rollback()returns anAsahiRollbackPlantargeting the most-recent previous generationexamples/builder-aarch64-dev-release.example.json: Phase 0 fixture with Asahi boot chain, local Katello content server (127.0.0.1:8101),devlifecycle envTest plan
pytest tests/test_asahi_boot_chain.py)pytest)plan_rollback()returnsdeniedwhenefiVarsMutable=truedetect_generations()returns at least one generation