WIP: snapchain migration

[aditiharini]

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PR-Codex overview

This PR introduces a new PruneMessages feature to manage message pruning in the system, including new request and response message types in Protobuf, updates to the RPC service, and modifications to various components to support the new functionality.

Detailed summary

• Added PruneMessagesRequest and PruneMessagesResponse messages in protobufs/schemas/request_response.proto.
• Updated rpc.proto to include PruneMessages RPC method.
• Implemented clearCachedMessageCount and clearStorageCacheForFid in storeEventHandler.ts and engine/index.ts.
• Enhanced AdminServer to handle pruneMessages RPC call.
• Modified L2EventsProvider to support a stopping block feature.
• Updated CLI options in cli.ts for --stop-fname-transfer-id.
• Refactored message reconciliation logic in messageReconciliation.ts.
• Added migration logic for handling on-chain events and username proofs in migration.ts.
• Updated package files to reflect new dependencies and configurations.

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Name	Status	Preview	Comments	Updated (UTC)
hub-monorepo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 2, 2025 9:08pm

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Latest commit: 0be21aa

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