Build lending pool yield aggregator with best-rate routing

[Smartdevs17]

Context

Yield needs aggregation across pools for best rates.

Current Limitation

Yield optimization is manual.

Expected Outcome

• Yield aggregation across pools
• Best-rate routing
• Yield comparison tools
• Yield analytics

Acceptance Criteria

• Yield aggregation across pools
• Best-rate routing algorithm
• Yield comparison tools
• Yield analytics
• Yield alerts
• Yield API
• Yield documentation