apollo_storage: add patricia_proofs table for OS-input witnesses

[yoavGrs]

Mirrors the accessed_keys storage: a per-block table mapping BlockNumber to
a Patricia witness proofs payload (StarknetForestProofs), stored in an mmap
file. Gated behind the os_input feature. The batcher will use this to persist
the proofs returned by the committer's read_paths_and_commit_block endpoint.

Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

[reviewable-StarkWare]

This change is 

[yoavGrs]

• apollo_batcher: persist patricia proofs returned by the committer #14393
• apollo_batcher: route commitment through read_paths_and_commit_block under os_input #14392
• apollo_batcher: persist accessed keys before adding the commitment task #14391
• apollo_batcher: add ReadPathsAndCommitBlock committer task type #14385
• apollo_batcher: refactor commit metrics to read the label from the task output #14384
• apollo_batcher: refactor TaskTimer with a timer map per task label #14383
• apollo_storage: add patricia_proofs table for OS-input witnesses #14382 👈 (View in Graphite)
• main

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• Started at 2026-06-04T08:44:12Z

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PR Summary

Medium Risk
Introduces new on-disk tables and mmap files for OS witness data; behavior is feature-gated and mirrors an existing pattern, but incorrect persistence could affect downstream OS/batcher consumers.

Overview
Adds per-block Patricia witness storage (StarknetForestProofs) for Starknet OS inputs, following the same design as accessed_keys: an MDBX table maps BlockNumber → mmap LocationInFile, with JSON + zstd serialization.

Under the os_input feature, wiring includes a new patricia_proofs DB table, patricia_proofs.dat mmap handler, OffsetKind::PatriciaProofs, and MAX_DBS raised to 27. starknet_committer is added as an optional dependency (with os_input feature alignment).

The new patricia_proofs module exposes get_patricia_proofs, append_patricia_proofs, and revert_patricia_proofs on StorageTxn, plus unit tests for round-trip, empty payloads, and revert/no-op behavior.

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