feature: add temporal control-plane connect service

[rustatian]

• add temporal.v1.TemporalService mirroring the temporal plugin's control RPC surface for the v6 Connect-RPC layer: RecordActivityHeartbeat, GetActivityNames/GetWorkflowNames, the four workflow replay methods (reusing the existing ReplayRequest/ReplayResponse/History messages), and UpdateAPIKey
• additive only — no existing messages changed

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📥 Commits

Reviewing files that changed from the base of the PR and between 826600e and cb450a3.

📒 Files selected for processing (3)

• roadrunner/api/centrifugo/api/v1/api.proto
• roadrunner/api/centrifugo/proxy/v1/proxy.proto
• roadrunner/api/temporal/v1/service.proto

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• Create PR with unit tests
• Commit unit tests in branch feature/temporal-service

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[Copilot]

Pull request overview

Adds a new temporal.v1.TemporalService protobuf service definition to expose the Temporal plugin’s control-plane RPC surface in the v6 Connect-RPC API layer, reusing existing replay-related message types already defined in temporal/v1/temporal.proto.

Changes:

• Introduces TemporalService with RPCs for activity heartbeats, workflow/activity name introspection, workflow replay/history tooling, and API key rotation.
• Adds new request/response messages for heartbeats, name listing, and API key updates, while reusing ReplayRequest, ReplayResponse, and History.

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