[FEATURE]:Supplier template issue

[2841649220]

Feature hasn't been suggested before.

• I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

GitHub Copilot now supports GPT-5.3 Codex, while Alibaba Cloud Bailian Coding Plan has not yet been added to the supplier list.

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• The title "Supplier template issue" does not clearly describe what is being requested. Please use a descriptive title that summarizes the feature (e.g., "[FEATURE]: Add Alibaba Cloud Bailian Coding Plan provider").
• The description combines two separate, unrelated feature requests into one issue (GPT-5.3 Codex for GitHub Copilot + Alibaba Cloud Bailian Coding Plan). Please split these into separate issues.

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Support for Alibaba Model Studio Coding Plan as provider #14819: Support for Alibaba Model Studio Coding Plan as provider
• [FEATURE]:Hope to support Alibaba's coding plan. #15030: Hope to support Alibaba's coding plan
• [FEATURE]: 5.3 Codex for Github Copilot provider #12954: 5.3 Codex for GitHub Copilot provider

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This issue has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new issue that follows our issue templates.