feat: improve restore algorithm

[aawsome]

Enhances the blob-reading optimization used in the restore to also read small holes, like in #448.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 42.2%. Comparing base (a5315cf) to head (2cbd12a).

Files with missing lines	Patch %	Lines
crates/core/src/commands/restore.rs	0.0%	19 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
crates/core/src/commands/restore.rs	0.0% <0.0%> (ø)

... and 16 files with indirect coverage changes

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