Secure USD Checkout and Fairer Player-Spawned Bosses

What changed

• Pouch, Satchel, Chest, Vault and Treasury packages open a secure one-time Stripe Checkout at the USD package price shown in Shop; Stripe displays any applicable tax before payment.
• Stripe dynamically shows eligible payment methods such as card, Apple Pay, Google Pay and PayPal according to account and customer eligibility.
• NexusRPG never trusts a price or Credit amount from the browser. Credits enter the existing shared balance only after a signed paid Stripe event matches the locked package subtotal, account and currency, with any higher total fully explained by Stripe tax.
• Repeated Stripe events cannot grant the same purchase twice. Any signed payment mismatch grants nothing and appears in staff payment monitoring for manual verification.
• Each verified purchase now extends a +100% Global Supporter Bonus for every player: two minutes per 100 base Credits purchased, applied last to Battle XP, Gathering XP and Battle Gold. Gameplay-earned and purchased Credits remain one shared balance.
• The single-card tooltip for items already equipped in the right Equipment panel is now narrower, while Inventory comparison tooltips keep their two-column detail view.
• When a player action discovers a World Boss, its level is now rolled from 1 through that player’s current Character Level. Other online players no longer raise it, while automatic system and Clan Boss rules are unchanged.
• Automatic Plane Anomalies share one random timer from one second to twelve hours. Any automatic Anomaly spawn resets the whole Anomaly group, while automatic World Bosses use a separate random timer with the same range.