Implements the snack.Manager interface for Alpine Linux's apk-tools:
- Install, Remove, Purge, Upgrade, Update operations
- List installed, Search, Info, IsInstalled, Version queries
- Output parsing for apk list, search, and info formats
- Linux-only implementation with build-tag stubs for other platforms
- Options support: WithSudo, WithDryRun, WithRoot
- Tests for all output parsing functions
