Changelog — fomo-research skill

- **Traders search** (`GET /v1/traders/search`) — compound filtering by win rate, PnL, trades, chain - **Handle positions** (`GET /v1/handle/:handle/positions`) — computed open/closed positions from activity data - **Handle theses** (`GET /v1/handle/:handle/theses`) — all Fomo thesis comments by a specific trader - New workflow examples: elite trader search, position checking, trader thesis lookup - Updated API reference with response schemas and query params for all v0.3.0 endpoints