feature: Promote gRPC UpdateService to v1

[frhuelsz]

🔍 Description

Promote UpdateService to v1 stable.

[Copilot]

Pull request overview

Promotes the gRPC UpdateService from the preview API surface into the stable trident.v1 API, and updates related proto/Rust wiring so the server and client use the v1-generated types.

Changes:

• Move UpdateService proto package from trident.v1preview to trident.v1 and adjust referenced message types accordingly.
• Promote HostConfiguration into trident.v1 and update v1preview protos to reference trident.v1.HostConfiguration.
• Register the v1 UpdateService on the server unconditionally and update Rust service/client imports to use trident_proto::v1.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
proto/trident/v1preview/validation_service.proto	Switches HostConfiguration dependency to trident.v1 and qualifies message types.
proto/trident/v1preview/status_service.proto	Switches HostConfiguration dependency to trident.v1 and qualifies message types.
proto/trident/v1preview/install_service.proto	Switches HostConfiguration dependency to trident.v1 and qualifies message types.
proto/trident/v1/update_service.proto	Promotes UpdateService into trident.v1 package and uses in-package type references.
proto/trident/v1/host_config.proto	Promotes HostConfiguration into trident.v1 package.
crates/trident/src/server/tridentserver/services/update.rs	Updates the service implementation to the v1-generated proto module.
crates/trident/src/server/tridentserver/services/mod.rs	Makes the update service module part of the non-preview service set.
crates/trident/src/server/mod.rs	Registers UpdateServiceServer in the non-preview server router.
crates/trident/src/grpc_client/tridentclient.rs	Switches to v1 UpdateServiceClient and moves HostConfiguration import to v1 for preview install calls.