* chore(io): Migrate pkg/cli to Medium abstraction
- Update `PIDFile` struct to include `io.Medium` field.
- Update `NewPIDFile` signature to accept `io.Medium`.
- Update `PIDFile` methods to use injected medium instead of `io.Local`.
- Add `Medium` field to `DaemonOptions`.
- Update `NewDaemon` to default to `io.Local` if no medium is provided.
- Update `pkg/cli/daemon_test.go` to reflect changes and add mock medium tests.
* chore(io): Migrate pkg/cli to Medium abstraction
- Update `PIDFile` struct to include `io.Medium` field.
- Update `NewPIDFile` signature to accept `io.Medium`.
- Update `PIDFile` methods to use injected medium instead of `io.Local`.
- Add `Medium` field to `DaemonOptions`.
- Update `NewDaemon` to default to `io.Local` if no medium is provided.
- Update `pkg/cli/daemon_test.go` to reflect changes and add mock medium tests.
- Fix flaky test `TestLinuxKitManager_Stop_Good_ContextCancelled` by checking context at the start of `Stop`.
- Add fail-fast context checks to all `LinuxKitManager` methods taking a context.
2e6a0f4ef3