Enhance Rakesh Jhunjhunwala Agent with India Market Intelligence

The Rakesh Jhunjhunwala agent currently lacks India-specific context.
Propose enhancing it with real NSE FII/DII flows, promoter holding & pledge checks, and basic SEBI-style risk filters.
Also add a lightweight IndiaMarketAgent to provide overall market bias (risk-on / risk-off / domestic support).
This will make signals more realistic, explainable, and India-native