{
    "app": {
        "debug": true,
        "log_level": "DEBUG",
        "environment": "development"
    },
    "data_sources": {
        "cache_ttl_seconds": 1800,
        "sample_data_enabled": true
    },
    "ai_engine": {
        "enabled": true,
        "cache_ttl_hours": 12,
        "retry_attempts": 2,
        "retry_delay_seconds": 1
    },
    "visualization": {
        "chart_height": 400,
        "debug_mode": true
    },
    "export": {
        "output_directory": "exports_dev",
        "pdf_quality": "medium"
    },
    "ui": {
        "default_language": "繁體中文",
        "debug_info": true
    },
    "security": {
        "require_api_key": false,
        "rate_limit_requests": 1000
    }
}