Creation Flow: Implement Priority Conflict Detection

[Jasrags]

Summary

Implement the TODO for priority conflict detection in character creation. Currently hardcoded to always return false, meaning priority conflicts are never detected.

Parent Issue

• Creation Sheet Verification & Polish #95 Creation Sheet Verification & Polish

Location

components/creation/PrioritySelectionCard.tsx:285

// TODO: Implement conflict detection for metatype/magic priority requirements
return false;

Problem

When players assign priorities (A-E) during character creation, certain combinations create conflicts:

1. Metatype requirements: Some metatypes require minimum priority levels (e.g., Troll might need Priority C or higher for metatype)
2. Magic/Resonance requirements: Magic users need sufficient priority to access their tradition
3. Cross-priority dependencies: Choosing a magic-heavy priority affects what metatypes are viable

Currently, players can assign any priority to any category without validation, potentially creating invalid characters.

Expected Behavior

• When assigning priorities, detect conflicts with already-selected metatype/magic path
• Show warning/error when conflict detected
• Prevent or warn about finalizing characters with priority conflicts

Implementation Notes

The function needs to check:

1. Current metatype selection and its minimum priority requirement
2. Current magic/resonance path and its minimum priority requirement
3. Whether the proposed priority assignment would violate these requirements

Acceptance Criteria

• Priority conflicts are detected when assigning priorities
• User sees clear feedback when a conflict exists
• Cannot finalize character with unresolved priority conflicts
• Existing valid characters are not affected
• Unit tests cover conflict detection logic