feat(research): Send only aggregated summary to AI (not raw transfers)

- Extract compact JSON summary from OVSM result
- Send only token summaries with top 5 senders/receivers
- Removes ALL raw transfer data from AI payload (massive size reduction)
- Timeout already set to 120s per attempt, 4 attempts total
- This should fix osvm.ai timeouts by reducing payload from ~150 transfers to ~7 token summaries

Before: Sending debug string of 102 unique transfers (huge!)
After: Sending clean JSON with just aggregated stats per token

Author: 0xrinegade