feat(registry): Added StandardEngineReplicaVersionRecord proto and corresponding key.

[daniel-wong-dfinity-org-twin]

This isn't used yet. The plan is, later, this will be used to determine what Replica version engines run.

Next PR 👉

[zeropath-ai]

✅ No security or compliance issues detected. Reviewed everything up to eb3ab99.

Security Overview

• 🔎 Scanned files: 6 changed file(s)
• 🔗 Scan Link: https://zeropath.com/app/repositories/f975f1a5-0a47-4a3b-b7f0-a55609e90390?scanId=0825fa4c-51c5-4e2c-a0e7-2c5c0e0014b2&codeScanTypes=PrScan&tab=issues

Detected Code Changes

Change Type

Relevant files

Enhancement

► rs/protobuf/def/registry/standard_engine_replica_version/v1/standard_engine_replica_version.proto     Add StandardEngineReplicaVersionRecord message with deployment_progress field ► rs/protobuf/generator/src/lib.rs     Include standard_engine_replica_version proto in registry files ► rs/protobuf/src/gen/registry/registry.standard_engine_replica_version.v1.rs     Add generated ProtoRust binding for StandardEngineReplicaVersionRecord ► rs/protobuf/src/registry.rs     Register standard_engine_replica_version module ► rs/protobuf/src/registry/standard_engine_replica_version.rs     Expose v1 module for standard engine replica version ► rs/registry/keys/src/lib.rs     Add STANDARD_ENGINE_REPLICA_VERSION_RECORD_KEY constant and accessor ► rs/protobuf/generator/src/lib.rs     Update proto file list to include standard_engine_replica_version.proto

No behavior change yet.

[Copilot]

Pull request overview

Introduces a new registry singleton record for representing the “standard” (default) replica/GuestOS version configuration for engine subnets, along with a dedicated registry key constructor and protobuf plumbing to generate and expose the new type.

Changes:

• Added a new registry key (standard_engine_replica_version) and a helper to construct it in ic_registry_keys.
• Added a new protobuf definition StandardEngineReplicaVersionRecord (v1) describing rollout state (new/old version IDs + deployment progress).
• Wired the new proto into the protobuf generator and exposed it via rs/protobuf module exports (including checked-in generated Rust).

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
rs/registry/keys/src/lib.rs	Adds the singleton key constant and make_standard_engine_replica_version_record_key() helper.
rs/protobuf/src/registry/standard_engine_replica_version.rs	Adds module wrapper exposing generated v1 types.
rs/protobuf/src/registry.rs	Exports the new standard_engine_replica_version registry module.
rs/protobuf/src/gen/registry/registry.standard_engine_replica_version.v1.rs	Adds generated Rust types for the new proto message.
rs/protobuf/generator/src/lib.rs	Includes the new proto file in registry proto compilation inputs.
rs/protobuf/def/registry/standard_engine_replica_version/v1/standard_engine_replica_version.proto	Defines the StandardEngineReplicaVersionRecord proto message and documentation.

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