feat(framework): Allow TLS for flwr-model

[danielnugraha]

Issue

Description

Related issues/PRs

Proposal

Explanation

Checklist

• Implement proposed change
• Write tests
• Update documentation
• Address LLM-reviewer comments, if applicable (e.g., GitHub Copilot)
• Make CI checks pass
• Ping maintainers on Slack (channel #contributions)

Any other comments?

[Copilot]

Pull request overview

This PR enables TLS support for the flwr-model process by wiring CLI TLS flags through to the gRPC channel creation used to connect to SuperLink’s ServerAppIo API.

Changes:

• Forward --insecure and resolved root certificates from flwr-model CLI into the model task runtime.
• Update model task gRPC stub creation to use an explicit insecure flag (instead of inferring it from certificate presence).
• Adjust CLI wiring tests to include/verify the new insecure argument forwarding.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
framework/py/flwr/supercore/task_process/model/run_model.py	Accepts insecure and uses it when creating the ServerAppIo gRPC channel.
framework/py/flwr/supercore/cli/flwr_model.py	Removes TLS-not-supported guard and resolves/passes root certificates for TLS connections.
framework/py/flwr/supercore/cli/flwr_model_test.py	Updates CLI forwarding test inputs/assertions for the new TLS-related args.

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[panh99]

LGTM!