Make module registry URL configurable

[marklicata]

Summary

The module registry URL is now configurable via DEFAULTS.yaml and can be overridden by users in their settings.yaml files.

Changes Made

1. Added registry_url to DEFAULTS.yaml - Centralized the default registry URL configuration
2. Created get_system_registry_url() function - Similar to get_system_default_profile(), reads from DEFAULTS.yaml
3. Updated RegistryClient - Now accepts optional registry_url parameter and defaults to system configuration
4. Enhanced registry command output:
   • Added 'Installed' column to show which modules are already installed
   • Fixed Version column to use 'latest' field from JSON
   • Fixed Type column to use 'module_type' field from JSON
   • Added Tags column to display module tags

User Override Path

Users can now override the registry URL in their settings.yaml:

registry:
  url: https://example.com/my-custom-registry/index.json

Files Modified

• amplifier_app_cli/data/profiles/DEFAULTS.yaml - Added registry_url configuration
• amplifier_app_cli/data/profiles/__init__.py - Added get_system_registry_url() function
• amplifier_app_cli/registry/client.py - Updated to read from configuration
• amplifier_app_cli/registry/commands/registry.py - Enhanced table output with installation status, version, type, and tags

Related

This complements the existing profile configuration system and follows the same pattern for system defaults with user overrides.