Intelligent Configuration Management System with Dynamic Overrides

Create a robust configuration management class that supports hierarchical configuration loading from multiple sources (environment variables, JSON files, YAML, command-line arguments) with intelligent merging and type-safe resolution. Implement a priority-based override system that allows for environment-specific configurations, with built-in validation for required fields and type checking. The system should support nested configurations, provide clear error messages for misconfiguration, and allow runtime configuration reloading.