[DEPRECATED] Migrate streaming service to XML-based configuration

Overview

Migrate streaming-service configuration from JSON to XML format for enterprise compatibility.

Justification

• Enterprise customers require XML configs
• Aligns with legacy systems
• Industry standard in media streaming

Scope

• Convert application.json to application.xml
• XML parser implementation
• Schema validation
• Migration script for existing configs

Estimated Effort

• 5 days development
• 2 days testing
• 1 day deployment

NOTE: This work was started before deprecation announcement