Initial commit: Polymarket Whale Watcher

- Add trade monitoring and whale detection system
- Add LLM-powered trade analysis
- Add market data fetching from Polymarket API
- Include example environment configuration
- Add automated report generation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/config/settings.py

@@ -0,0 +1,52 @@
+"""Application settings and configuration."""
+import os
+from functools import lru_cache
+from typing import Optional
+
+from dotenv import load_dotenv
+from pydantic import Field
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    """Application settings loaded from environment variables."""
+
+    # Gemini API
+    gemini_api_key: str = Field(default="", alias="GEMINI_API_KEY")
+
+    # Polygon Wallet
+    polygon_wallet_private_key: str = Field(default="", alias="POLYGON_WALLET_PRIVATE_KEY")
+
+    # MongoDB
+    mongodb_uri: str = Field(default="mongodb://localhost:27017/whale_watcher", alias="MONGODB_URI")
+
+    # Whale Detection Settings
+    min_trade_size_usd: float = Field(default=1000.0, alias="MIN_TRADE_SIZE_USD")
+    min_price: float = Field(default=0.2, alias="MIN_PRICE")
+    max_price: float = Field(default=0.8, alias="MAX_PRICE")
+
+    # Monitoring Settings
+    fetch_interval_seconds: int = Field(default=5, alias="FETCH_INTERVAL_SECONDS")
+    trending_markets_limit: int = Field(default=50, alias="TRENDING_MARKETS_LIMIT")
+
+    # LLM Settings (Gemini)
+    llm_model: str = Field(default="gemini-3-pro-preview", alias="LLM_MODEL")
+    llm_temperature: float = Field(default=0.0, alias="LLM_TEMPERATURE")
+
+    # Trade Execution
+    enable_trade_execution: bool = Field(default=False, alias="ENABLE_TRADE_EXECUTION")
+
+    # Logging
+    log_level: str = Field(default="INFO", alias="LOG_LEVEL")
+
+    class Config:
+        env_file = ".env"
+        env_file_encoding = "utf-8"
+        extra = "ignore"
+
+
+@lru_cache
+def get_settings() -> Settings:
+    """Get cached settings instance."""
+    load_dotenv()
+    return Settings()