v0.7.6

What's Changed

• feat(oci): store OCI layers as content-addressed artifacts (layers survive) by @jaredLunde in #71
• ext4: group-aware allocator, metadata-aware dedup alignment, e2fsck-gated harness by @jaredLunde in #72
• block: zstd compression (codec auto-detect) + deduplication-model docs by @jaredLunde in #73
• EROFS read-only OCI images + automatic cold-start pack-window readahead by @jaredLunde in #74
• Cold-start boot-set: EROFS reorder + universal precise-coalesced warm + profiler by @jaredLunde in #75
• fix(ublk-zc): re-backfill sub-block writes evicted in the pre_write→gate gap by @jaredLunde in #77

Full Changelog: v0.7.5...v0.7.6