Normalise route naming scheme to 'Route X (Region)' format
Standardise 426 inconsistent route names across 33 seed data files (game data + boss files). Converts 'Region Route X' prefix style and 'Route X - Region' dash style to the consistent 'Route X (Region)' format. Resolves beans-r48e. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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