Alchemy System

Files
file	alchemy_graph_manager.gd
	Validates data-driven alchemy reaction graphs for unreachable nodes and dangling ids.
file	alchemy_manager.gd
	Data-driven chemistry/reaction lookup for discovery-focused games.
file	research_lab_manager.gd
	Inventory-consuming research attempts for discovery/lab style games.

Detailed Description

Loads elements, compounds, reactions, and graph validation helpers for discovery-driven experimentation.