🔄 Pull Request

📝 Description

Background

The config file path was hardcoded as "config.yaml" in main.py, making it difficult to use different configurations for different environments or deployments.

Changes

• Added command line argument support: --config / -c
• Added environment variable support: SHS_MCP_CONFIG
• Updated README with configuration options

Usage

# Command line
python main.py --config /path/to/prod-config.yaml

# Environment variable
SHS_MCP_CONFIG=/path/to/staging-config.yaml python main.py

Priority: CLI argument > environment variable > default

🎯 Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📖 Documentation update
• 🧪 Test improvement
• 🔧 Refactoring (no functional changes)

🧪 Testing

• ✅ All existing tests pass (task test)
• 🔬 Tested with MCP Inspector
• 📊 Tested with sample Spark data
• 🚀 Tested with real Spark History Server (if applicable)

fixes: #112