Implement Multi-Machine Priority with Per-Recipe Override Capability

[amgtree]

Description:
Enhance the building selection system with both global priority fallback ordering and the ability to override machine selection for individual recipes directly in the calculation view.

Current Limitations:

• Settings only allow one preferred machine.
• Changing machine preference for one recipe requires global setting changes
• No fallback system when preferred machines aren't suitable for specific recipes

Proposed Implementation:

Global Priority System:

• Replace single machine selection with ranked priority lists
• Drag-and-drop interface for ordering machine preferences
• Smart fallback based on recipe requirements and module compatibility
• Enable/disable specific machines within each category

Per-Recipe Override System:

• Clickable machine icons in the calculation results table
• Dropdown menu showing available machines for that specific output product
• Visual indicators for overridden machines (different icon style/color)
• Per-session persistence that doesn't affect global settings

User Interface:

• Settings: Priority-ordered lists with drag-and-drop functionality
• Results table: Click building icon → contextual menu with alternatives
• Clear visual distinction between default and overridden selections
• "Make this default" option in override menu for permanent changes

Use Cases:

• Mixed Production Lines: Global preference for Assembly Machine 3, but use foundries for specific smelting calculations
• Module Optimization: Prefer machines with more module slots, fallback to speed-focused machines for non-productivity recipes
• Resource Constraints: Model scenarios with limited advanced machine availability
• Comparison Testing: Quickly test different machines for the same recipe without losing global preferences
• Specialized Factory Sections: Override specific recipes to model dedicated production areas

Technical Considerations:

• Global priorities stored in settings, overrides stored per-session
• Integration with existing module compatibility system
• Clear precedence: per-recipe override > global priority > system default
• Recipe-specific overrides reset when changing global priorities
• This could integrate well with the profiles suggestion I made earlier

Alternative Approaches:

• Conditional logic system (if recipe allows productivity modules, use AM3)
• Simply just using little up and down buttons on machines with a priority number to let you ++ or -- priority
• Right-click context menus instead of click-to-open
• Advanced mode toggle for per-recipe controls
• Maybe expand the priority to other places like recipes (idk if there items that have multiple recipes on the same machine) and fuel sources.

Benefits:

• Reduces need to constantly adjust global settings
• Supports both more complex recipe chains using different machines and specific recipe configurations.
• Provides granular control without interface complexity

TL;DR: Replace single machine selection with priority-ordered fallback system plus clickable per-recipe overrides, enabling both global settings you never have to touch and an easy way of swapping machines within a recipe without having to leave the page.