feat: add prediction engine category (12 AI prediction sources)
- Add prediction as 6th engine category across all source code and docs
- Update data source count from 72+ to 84+ (53 news + 9 listing + 3 onchain + 1 meme + 6 market + 12 prediction)
- Update engine category count from 5 to 6
- Add prediction sources: CORRELATION_LOGICAL, SMART_MONEY_TRADE, PRICE_SPIKE,
CLUSTER_ENTRY, WHALE_POSITION, NEW_WALLET_TRADE, INSIDER_PATTERN,
CORRELATION_NARRATIVE, CORRELATION_HEDGE, CORRELATION_ENTITY_GEO,
CORRELATION_CAUSAL, SETTLEMENT_ARBITRAGE
- Update all tool docstrings, FastMCP instructions, and engine type lists
- Update README.md, README_ZH.md, README_JA.md, README_KO.md
- Update knowledge/guide.md and SKILL.md
tkk
e4f40e1edd