🛠️ Devlog: Major Save System & Card Logic Overhaul

Version 1.6.0 – May 2025

• Universal unlock system: All games now share one master unlock list. Unlock it once—it's yours across all releases.
• Save migration: Old per-game PlayerPrefs are automatically converted to the new global unlock format on first launch, keeping all your earned progress intact.
• Centralized unlock checks: Any card, image, or video unlocked is now universally recognized by all relevant systems and menus across all connected titles.
• Full system integration: Gallery mode, deck spawner, and match validation all use the new universal unlock framework, removing inconsistencies.
• Legacy save consolidation: Isolated unlocks from prior builds are now merged into a single future-proofed system.
• Seamless upgrade path: Players updating from older builds get their unlocks automatically detected and transferred—no manual steps required.
• Future-ready: Backend unlock architecture built to support future DLC, game modes, and cross-title unlock continuity without breaking compatibility.