{AKS}: fix and enrich prompt message

[mainred]

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[Copilot]

Pull request overview

This PR fixes and enriches prompt messages in the AKS agent extension by dynamically generating CLI command flags to provide more accurate guidance to users. The changes ensure that error messages and help prompts display the correct command syntax with all required parameters.

Changes:

• Version bumped from 1.0.0b15 to 1.0.0b16
• Added command_flags() and init_command_flags() helper methods to both AKSAgentManager and AKSAgentManagerClient classes to dynamically generate CLI flags
• Updated all user-facing prompt messages to use these helper methods for consistent and accurate command suggestions
• Enhanced cluster mode cleanup to wait for pods to be removed after Helm uninstall

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/aks-agent/setup.py	Version bump to 1.0.0b16
src/aks-agent/azext_aks_agent/custom.py	Updated error/help messages to dynamically include correct CLI flags using new helper methods
src/aks-agent/azext_aks_agent/agent/k8s/aks_agent_manager.py	Added abstract method init_command_flags() and concrete implementations of both command_flags() and init_command_flags() in both manager classes; added _wait_for_pods_removed() method and integrated it into cleanup flow
src/aks-agent/azext_aks_agent/_help.py	Updated help text to include placeholder parameters in prerequisite command
src/aks-agent/HISTORY.rst	Added changelog entry for version 1.0.0b16 with description of fixes

[azclibot]

[Release] Update index.json for extension [ aks-agent-1.0.0b16 ] : https://dev.azure.com/msazure/One/_build/results?buildId=150911090&view=results