feat: add Crypto DeFi Reasoning community environment

environments/community/crypto_defi_reasoning/README.md

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+# Crypto DeFi Reasoning Environment
+
+## Overview
+Trains LLMs to reason about DeFi protocol health, tokenomics, liquidity metrics,
+and on-chain data using structured mathematical analysis.
+
+The model is given real-world style DeFi scenarios and must:
+1. Reason through the data mathematically inside `<reasoning>` tags
+2. Produce a verdict: **HEALTHY**, **OVERVALUED**, **UNDERVALUED**, or **RISKY**
+
+## Scenario Types
+| Type | Description |
+|---|---|
+| Tokenomics Health | FDV/MCap ratio, circulating supply pressure, volume analysis |
+| Liquidity Analysis | TVL/MCap ratio, protocol revenue, inflation rate |
+| DeFi Yield | APY sustainability, token emission pressure on TVL |
+| On-Chain Activity | Active wallets, transaction volume vs market cap |
+
+## Reward Signal
+| Component | Score |
+|---|---|
+| Correct verdict label | 0.5 |
+| Has `<reasoning>` block | 0.2 |
+| Reasoning contains numerical calculations | 0.1 |
+| Reasoning depth (>100 chars) | 0.1 |
+| Has `<verdict>` block | 0.1 |
+
+## Usage
+```bash
+python environments/community/crypto_defi_reasoning/crypto_defi_reasoning_server.py serve \
+  --openai.model_name NousResearch/Hermes-3-Llama-3.1-8B \
+  --slurm false
+```
+
+## Author
+Investorquab — community contributor