Implement gRPC translation client

[jdfalk]

Summary

• implement gRPC-based translation provider
• add --grpc flag to translate command
• update README to document remote translation option
• note gRPC client status in TODO
• test gRPC provider

Testing

• go test ./...

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https://chatgpt.com/codex/tasks/task_e_68438d582fd08321b322e317b21519dc

[Copilot]

Pull Request Overview

Adds support for a remote gRPC translation provider alongside existing services, updates the CLI and docs, and includes tests for the new client.

• Introduce GRPCTranslate in translator.go and wire it into the provider map
• Extend the translate command (--grpc flag) and update server stub
• Update tests to cover gRPC provider, README, and TODO

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
pkg/translator/translator.go	Added GRPCTranslate, imported gRPC packages, and extended Translate signature
pkg/translator/translator_test.go	Updated Translate calls, added TestGRPCTranslate and provider test
cmd/translate.go	Added --grpc flag, bound grpc_addr, and updated Translate invocation
cmd/grpcserver/main.go	Adjusted server handler to call Translate with empty grpcAddr
TODO.md	Marked gRPC client implementation status
README.md	Documented the --grpc flag for remote translation

Comments suppressed due to low confidence (2)

cmd/translate.go:66

• [nitpick] Flag name --grpc is ambiguous; consider renaming to --grpc-addr to clearly indicate it expects a server address.

translateCmd.Flags().String("grpc", "", "use remote gRPC translator at host:port")

pkg/translator/translator.go:108

• The code uses context.Background() but context is not imported; add import "context" to the import block.

resp, err := client.Translate(context.Background(), &pb.TranslateRequest{

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Issue closed via automated workflow.

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Issue closed via automated workflow.