Implement Multiple Construction Queues and Cancelation Support

[rluders]

📌 Description

Currently, the ConstructionManager only supports a single construction queue. To allow more flexibility, we need to implement support for multiple queues and add the ability to cancel constructions.

🎯 Goals

• Allow multiple construction queues per player or unit type.
• Implement a construction cancelation system.
• Improve UI interaction for queue management.

📂 Related Files

• construction/construction_manager.gd
• construction/queue_component.gd

✅ Acceptance Criteria

• The ConstructionManager can manage multiple queues.
• The UI allows interaction with specific queues.
• The player can cancel an ongoing construction.

[amitnos123]

About construction,
We want it to be a grid system or free hand?

Grid system : Red Alert
Free Hand = Generals

[rluders]

As for the Placement system related to the Construction system, I guess that the ideal solution should cover both approaches or allow extension to support both.

Probably the best is to make it as free hand and then extend it to grid based.