feat: Show major position changes over time in market view

[starksama]

Summary

Display major vaults and suppliers with their position changes over time in the market view.

Requested by

0xdatawolf

Use Cases

It helps a lot to see the balances of users in the market at a glance. This is especially helpful in helping us see who is increasing positions or decreasing them. Helps in evaluating if a large player is exiting a market and warrants more research.

Details

• Show major vaults/suppliers in market view
• Display their position changes over time
• Help identify large players entering/exiting
• Track who is increasing vs decreasing positions

Acceptance Criteria

• List of major position holders visible in market view
• Position change indicators (increasing/decreasing)
• Historical trend for major positions