Add the 8.4k-line broker gateway (AMP Futures/CQG FIX routing) to workspace members. Fix 16 compilation errors from API drift: - Replace sqlx::query! macros with runtime sqlx::query (no .sqlx cache) - Add FromRow structs for typed query results - Remove unused imports, use safe indexing 7 tests pass. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>