feat: implement permission control systems for users, bypass dashboard for guests, and fix modal select styling

feat: implement administrative CRUD accounts management panel with role-based access check

feat: implement database-backed user login system with default admin seeding

feat: complete AI Batch Video & Image Generator tool integration with Replicate API

feat: implement 4 new AI creator tools for youtube and tiktok with interactive mockups and planners

feat: make major sidebar navigation sections collapsible and persist their state in localStorage

style: group sidebar navigation links into clean logical sections using uppercase category headers

feat: complete backend controllers, dynamic Select2 templates, and sidebar layouts for all 4 new AI tools

feat: design modern, premium global Select2 dropdown styles and integrate with dynamic options reloading across all tools

feat: add AI Audio Story Studio tool for prompt-based audiobook synthesis

feat: add Truyen Audio prompt category with high-view clickbait genres

feat: add AI Prompt Studio tool with 11 prompt categories and clean dropdown selector

Initial commit: PUM'S TOOLKIT - AI-powered tools collection