Keep IsToken checks explicit across futures and direct spot symbols, move futures-derived spot mapping to a clearly named helper, and update token data collection to use related spot resolution.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Gate token detection via spot symbol resolution so chat flow accepts spot-only tokens, and add regression coverage for the fallback path.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>