hakurei 0.4.7

Fixes:
- Eliminate gzip-derived identifiers from `internal/pkg` tests.

Enhancements:
- Optionally block packages from early stages in `internal/rosa`.
- Implement nil identifier and improve bindings in `internal/rosa`.
- In-flight error-resolution in package `internal/pkg`.
- Terminate specified instance via `cmd/hakurei`.

Internal:
- Update test cases for jsonv2.
- Synchronise before copying from integration VM.
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