Build System for Game Creator 2

GC2 Build System is a complete runtime construction module designed for Unity 6+ and Game Creator 2. It allows players to place, rotate, snap, edit, confirm, cancel, and dismantle build parts directly in-game. The system includes ghost previews, placement validation, grid snapping, socket-based connections, edit mode, destroy preview, and refund workflows. It supports saving placed structures, organizing builds by chunk and zone, and streaming nearby structures for scalability. Optional NavMesh rebuild support keeps runtime navigation aligned with player-created content. The module integrates with Game Creator 2 Visual Scripting, making it accessible for creators who prefer instruction-based workflows.