Validate config

src/config.hpp

@@ -93,6 +93,19 @@ public:
   static std::optional<Config>
   parse_toml_string(const std::string &toml_content);
 
+  /**
+   * @brief Validate configuration values are within reasonable bounds.
+   *
+   * This function performs comprehensive validation of all configuration
+   * parameters and writes detailed diagnostic messages to stderr for any
+   * validation failures or warnings encountered.
+   *
+   * @param config Configuration object to validate
+   * @return true if configuration is valid, false otherwise
+   * @note Validation errors and warnings are written to stderr
+   */
+  static bool validate_config(const Config &config);
+
 private:
   // Generic configuration parsing utilities
   template <typename T>