v1.2.1

Version 1.2.1 improves the Achievements experience by moving it closer to a true user-facing Jellyfin section.

This update adds a standalone achievements route, improves current-user loading and refines the automatic integration flow so the sidebar no longer has to rely on sending users directly to a plugin configuration page.

Added
• Standalone achievements route at #!/achievements
• Standalone achievements interface script
• Automatic standalone route injection through File Transformation
• Improved route handling for user-facing navigation

Improved
• Sidebar navigation target for Achievements
• Current-user detection and page initialisation
• Error handling when loading badges
• Overall user-facing access flow
• Separation between admin/plugin pages and normal user experience

Technical
• Added standalone web page resource
• Expanded automatic File Transformation registration
• Updated sidebar route targeting
• Improved standalone dashboard mounting logic