Deprecate 'az neon' command group with end-of-life notice

[rsinghal26]

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[azure-client-tools-bot-prd]

Hi @rsinghal26,
Please write the description of changes which can be perceived by customers into HISTORY.rst.
If you want to release a new extension version, please update the version in setup.py as well.

[azure-client-tools-bot-prd]

Validation for Breaking Change Starting...

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[yonzhan]

Thank you for your contribution! We will review the pull request and get back to you soon.

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[github-actions]

Hi @rsinghal26

Release Suggestions

Module: neon

• Update VERSION to 1.0.1b2 in src/neon/setup.py

Notes

• For more info about extension versioning, please refer to Extension version schema

[Copilot]

Pull Request Overview

This PR introduces breaking change notifications for the Azure Neon CLI extension, announcing its deprecation and end-of-life date. The implementation adds proper deprecation warnings to inform users about the service sunset and provides migration guidance.

• Registers the 'az neon' command group as deprecated
• Adds a detailed deprecation notice with EOL date and migration documentation link

[Copilot]

[nitpick] The deprecation message should include information about when the deprecation was announced or when the warning period started. This helps users understand the timeline and urgency of the migration.

Suggested change

	reach end of life on January 31, 2026. Transfer your projects to a Neon managed organization
	reach end of life on January 31, 2026. Deprecation announced on June 1, 2024. Transfer your projects to a Neon managed organization

[Copilot]

[nitpick] Consider defining the command group name 'az neon' as a constant (e.g., COMMAND_GROUP = 'az neon') to avoid duplication on lines 5 and 11, improving maintainability if the command group name needs to change.

Suggested change

	register_command_group_deprecate('az neon')
	message = """Deprecation Notice: The Neon Azure Native Integration is being deprecated and will
	reach end of life on January 31, 2026. Transfer your projects to a Neon managed organization
	today. Migration documentation is available at https://neon.com/docs/import/migrate-from-azure-native"""
	register_other_breaking_change('az neon', message)
	COMMAND_GROUP = 'az neon'
	register_command_group_deprecate(COMMAND_GROUP)
	message = """Deprecation Notice: The Neon Azure Native Integration is being deprecated and will
	reach end of life on January 31, 2026. Transfer your projects to a Neon managed organization
	today. Migration documentation is available at https://neon.com/docs/import/migrate-from-azure-native"""
	register_other_breaking_change(COMMAND_GROUP, message)