v1.3.0

Release v1.3.0
Bug Fixes
Fixed async handlers blocking the event loop during node scanning, git operations, and pip installs
Fixed cache invalidation not actually clearing stale node data
Fixed detect_broken_nodes failing due to missing module import
Fixed exception handler NameError in PyPI update checks
Fixed restart using default profile instead of the currently active one
Fixed launch_comfy and launch_profile silently ignoring custom_flags_list from profiles
Removed duplicate package install endpoint
Added thread-safe singleton initialization and atomic JSON file writes
Security
Added path traversal validation to file location opener
Improved path traversal check in node removal
Escaped user input in PowerShell shortcut/dialog scripts to prevent injection
Restricted run_python_command to an allowlisted set of modules
Re-enabled SSL certificate verification for PyPI requests
New
Added api_core.py, shortcut_utils.py, modular frontend JS, SVG assets, Tailwind build tooling, and documentation