/// The `powerflow` module contains all logic related to the steady-state power flow calculation
/// in the ECS-based power system simulation framework.
///
/// It integrates initialization routines, system-level solving stages,
/// generator reactive limits enforcement, result extraction, and structural updates.
///
/// This module is a key part of the simulation backend, handling the Newton-Raphson iteration
/// and constraint scheduling mechanisms in coordination with ECS world data.
// System and resource initialization logic
// Generator reactive power limit handling
// Incremental branch analysis data
// Snapshot and result extraction into simulation state
// Dynamic structural updates triggered by simulation stages
// Core system stages for power flow iteration // Scheduler for non-linear solve steps (e.g., Q-limit enforcement)
/// Re-exports commonly used symbols from `init` and `systems` for easy access.