feat(napi): add slot and V2 shred fields to deshred bindings

[leafaar]

Summary

• Add slot variant to deshred update oneof in NAPI bindings
• Add slots filter to deshred request
• Add completed data set shred index fields to deshred transaction info
• Depends on proto 12.2.0 (feat(proto): add slot updates and V2 shred fields to deshred protos #726)

[Copilot]

Pull request overview

Adds support in the NodeJS N-API bindings for new deshred proto features (slot update variant, slots request filter, and V2 shred index fields on deshred transaction info).

Changes:

• Extend deshred update oneof handling to include the slot variant across TS/Rust bindings.
• Add slots filtering to deshred subscribe request bindings and update related test fixtures.
• Expose completed data set shred index fields on SubscribeUpdateDeshredTransactionInfo in Rust + TS typings, and bump yellowstone-grpc-proto dependency.

Reviewed changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
yellowstone-grpc-client-nodejs/src/index.ts	Maps the new deshred update oneof slot variant into the JS SDK shape.
yellowstone-grpc-client-nodejs/napi/tests/js_types_tests.rs	Updates deshred request/update-oneof test structs for new fields.
yellowstone-grpc-client-nodejs/napi/src/lib.rs	Updates N-API stream tests/helpers to include the new deshred request slots field.
yellowstone-grpc-client-nodejs/napi/src/js_types.rs	Implements conversions for deshred slot oneof variant, deshred request slots map, and new shred index fields on transaction info.
yellowstone-grpc-client-nodejs/napi/src/encoding.rs	Updates encoding test data to include new transaction info fields.
yellowstone-grpc-client-nodejs/napi/index.d.ts	Updates TypeScript declarations for new deshred request/update/transaction-info fields.
yellowstone-grpc-client-nodejs/napi/Cargo.toml	Bumps yellowstone-grpc-proto dependency to 12.2.0.
yellowstone-grpc-client-nodejs/napi/Cargo.lock	Lockfile update for yellowstone-grpc-proto 12.2.0.

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