Added

• The tier items are now informational only (they still list the potential runes), and do nothing when clicked.
• Bottom-middle slot (22) is now a “Get Rune” button
• Clicking Get Rune auto-selects the highest tier you can afford (uses XP minimums and, if enabled/available, per-tier BubbleCoin costs), then performs the same roll (including the crate-style delay if enabled).
• Added default messages file: messages.yml
• config.yml now lets you select an economy provider + currency id: economy.provider: "coinsengine" | "disabled" (or whatever your CoinsEngine currency is)

Changed

• Refactored RuneService#grantRune into smaller helpers to reduce method complexity and improve maintainability.

Fixed

• Cleaned up minor style issues (one-statement-per-line, formatting around method boundaries).
• Improved EcoEnchants enchanted-book generation by using more forgiving enchant ID lookup (namespaced keys + separator/case normalization) and better debug logging when an enchant cannot be resolved.