[Core] Implement Type-Aware Clipboard for module copy/paste

[tensquaresoftware]

Build a clipboard system that understands module types (DCO, ENV, LFO) and allows intelligent copy/paste operations between compatible modules.

Tasks:

• Define Clipboard class with type awareness
• Implement copy functionality for DCO modules
• Implement copy functionality for ENV modules
• Implement copy functionality for LFO modules
• Implement paste functionality with type validation
• Handle incompatible paste attempts gracefully
• Add visual feedback for copy/paste operations
• Test cross-module copying (ENV1 → ENV2, etc.)

Context:
Users should be able to copy settings from one module and paste them into another compatible module (e.g., copy Env1 settings to Env2).