feat(api): Add blkio resource flags#17
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Two changes addressing review feedback from apple/containerization#739 and apple#1512 (comment): 1. Adopt the new `Containerization.LinuxBlockIO` wrapper added in containerization PR apple#739 (pin advanced to 3d009df). The wire format in `ContainerConfiguration.Resources.blockIO` stays as the Codable `ContainerizationOCI.LinuxBlockIO`; `RuntimeService.configureContainer` converts to the wrapper at the boundary via the new `toContainerizationBlockIO` helper. 2. Replace the six separate `--blkio-*` / `--device-*` flags with a single repeatable `--blkio` flag using key=value[,key=value] syntax, per apple#1512 (comment): --blkio weight=500 --blkio device=/dev/sda,weight=700,leaf-weight=300 --blkio device=/dev/sda,read-bps=1048576,write-bps=1048576 --blkio device=/dev/sda,read-iops=1000,write-iops=1000 Device values accept either an absolute host path (resolved via stat(2)) or a literal `<major>:<minor>`. Parser rejects unknown keys, conflicting global weights, and global-only keys appearing on device-less specs. Tests cover the combined spec, major:minor literal, invalid-weight, unknown-key, and global-only-on-device-spec error paths.
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Depends on apple/containerization#739