Write a document that outlines our telemetry usage/strategy including limitations on metric count, cardinality, etc. and add it to the sail-operator repository. It should also contain advice on when/how to add metrics for new functionality.

This is a design doc task for planing and team discussion.

Action items:

• Write a Sail Operator doc PR before implementing new telemetry data collection and measurements.
• Discuss the current usage and improvement plan in a team call and address PR review feedbacks.