PR Summary

Low Risk
Test-only and fixture-generation changes in central_systest_blobs; no production runtime paths.

Overview
Updates the central systest blob regression harness so generated GCS fixtures match production cende blobs for OS witness inputs, not just block metadata.

Block close now derives AccessedKeys from execution, commits via commit_state_diff_with_witnesses on IndexDb, and stores state_commitment_infos plus initial_reads trimmed to accessed keys (same as the batcher). BlobFactory::finalize attaches recent_state_commitment_infos with a one-block lag (blob N carries block N−1’s infos; genesis blob has none), mirroring recent block hashes.

Regression compares blobs with to_comparable_blobs (decompresses commitment infos for stable JSON). GCS fixture generation bumps 55 → 59.

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This change is 

• apollo_integration_tests: verify Patricia storage proofs of persisted witnesses in flow tests #14905
• apollo_integration_tests: validate cende blob witness fields in the dummy recorder #14904
• apollo_integration_tests: assert witnesses persisted for committed heights in flow tests #14903
• central_systest_blobs: publish a decoded commitment-infos companion beside the blobs #14917
• central_systest_blobs: carry real witness fields in the regression blobs #14910 👈 (View in Graphite)
• workspace,ci: remove the os_input feature (make it unconditional) #14902 : 2 other dependent PRs (#14907 , #14909 )
• main

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