[App Config] az appconfig create/update/network-security-perimeter-configuration: Add NSP support

[Christine Wanjau (ChristineWanjau)]

Related command

az appconfig create\update
az appconfig network-security-perimeter-configuration

Description

This PR introduces Network Security Perimeter (NSP) support for Azure App Configuration stores in the Azure CLI, along with a new --public-network-access argument that supersedes --enable-public-network to enable the new SecuredByPerimeter access mode.

New command group: az appconfig network-security-perimeter-configuration

• list — List all NSP configurations associated with an App Configuration store.
• show — Show a specific NSP configuration by name.
• reconcile — Force a refresh of a specific NSP configuration.

az appconfig create / az appconfig update
Added --public-network-access with allowed values Enabled, Disabled, SecuredByPerimeter.
Deprecated --enable-public-network / -e (redirects to --public-network-access). The flag remains functional for backward compatibility

Deprecation message:

Testing Guide

History Notes

[App Config] az appconfig create/update: Add Network Security Perimeter (NSP) support
[App Config] az appconfig network-security-perimeter-configuration: Add Network Security Perimeter (NSP) support

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