Add deployable consultant research reference

Execute Phase 13 updates: Purge ts_skewness and ts_kurtosis, define explicit safe list of operators, and prevent constant/no-trades expressions

Execute Phase 13: Synchronize all remaining local prompt adjustments, regional weight configurations, and operator diversity instructions

QuantForge v2.0 Phase 1 & 2: Core Async client, models, configuration, and Agentic Generation Layer