Fix database connection handle in user active job endpoint and bump to v223

Auto-sort glTF binary and Kaydara FBX files by magic bytes to prevent mislabeling, bump to v222

Auto terminate stale orphaned tasks and cleanup progress overlay on failure, bump to v221

Optimize ZeroGPU sampling steps to guarantee task execution without aborts

Auto-filter corrupt FBX/non-GLB files in gallery and ensure clean GLTF binary loading

Add explicit MIME types map for GLB, GLTF and FBX in Python HTTP server

Add full forensic logging for Gradio 3D outputs and file magic bytes

Keep original GLB binary file intact and prevent blender export overwrite

Fix model substitution and clean mesh FBX generation logic to ensure GLB compatibility

Prevent Blender from overwriting raw Trellis GLB file

Fix GLTF vs FBX loader routing and Three.js parsing

Fix Three.js bone rotation null checks and backend max_dim preprocessing

Fix 429 Too Many Requests in UniRig rigging download and add auth headers

feat: sync active background generation status across devices and sessions via /api/user-active-job

feat: enable multithreaded worker pool and WAL SQLite mode for parallel multi-user jobs

fix: pad transparent subject canvas with 20% safe margin to prevent edge clipping

fix: pass explicit background removal flag to Trellis preprocessor

Add Pillow and numpy to requirements.txt and wrap image sanitation imports dynamically to fix HF Space startup error

Add automatic smart center-crop fallback and transparency sanitation to prevent flat 3D planes on full-frame photos

fix: implement backend profile update endpoints and sync user avatar and nick in header

fix: simplify password validation rules for registration

fix: auto-load local venv site-packages in server.py

Support generated_images URL path resolution in process_3d_job

Support URL paths and disk file paths in process_3d_job to prevent base64 decode errors

Add header login button, client cookie expiration, and cross-site logout headers

Save QuadriFlow remeshed models as a new item (_quad.glb) to keep the original raw Trellis model intact in library

Generate FBX immediately upon 3D generation completion so downloads are instant with zero wait time or duplicate items

Use non-destructive fast cleanup for FBX export to preserve original UV mapping, materials, and textures without distortion

Hide _clean.glb files from appearing as duplicate items in gallery list and update parent model download link

Fix EXT_texture_webp GLB import error in Blender by upgrading to Blender 4.2 LTS and sanitizing glTF extension headers

Implement asynchronous task queuing architecture with background workers and polling for 2D/3D generation

Enable concurrent requests by upgrading server to ThreadingHTTPServer

Fix get_generated_dir return statement bug

Update registration starting credits from 15 to 20 for new users

Implement dynamic 3D credit costing based on resolution and texture size

Replace Stripe with Lemon Squeezy integration including API checkout creation, webhook, and custom verification bypass for testing

Integrate Stripe Checkout sessions, stripe-webhook for credit topup, and frontend redirect callbacks

Implement SaaS Credits MVP system with db schema migration, credits validations, and checkout store modal

Add automatic persistent storage path resolution using HF storage buckets

Restructure repository layout: move server and scripts to backend/ and web assets to frontend/ (ignore database and generated outputs)