v4.0.0 — UI Redesign & Full Codebase Review

What's New

UI Redesign

• Deep Moss + Amber palette with Triggarr-style layout
• Settings page: Flat card sections, two-column layout, labels above inputs
• Dashboard: Unified multi-select bar with bulk actions (Queue, Stop, Extract, Delete Local, Delete Remote)
• AutoQueue merged into Settings page with inline pattern CRUD
• Toast notifications: Triggarr-style with type icons (✓✕⚠ℹ) and slide-in animation
• Navigation: Streamlined to 4 items (Dashboard, Settings, Logs, About)

Security

• LFTP escape() rejects newline/CR/null characters (command injection fix)
• Shell commands use shlex.quote() for path interpolation
• Credentials redacted from debug log output

Bug Fixes

• Model read in command processing now protected by lock
• Auto-delete timer dict has dedicated threading lock
• SSE subscription properly torn down on reconnect
• View file indices updated correctly on file-add
• pexpect TIMEOUT decode crash handled safely
• Inner Observable subscriptions connected to teardown

Code Quality

• 55 issues from full-codebase deep review addressed
• Narrowed exception handlers, correct log levels, concrete types
• BFS traversals use collections.deque for O(1) popleft
• Version synced across package.json and debian/changelog

Technical

• Angular 21, Bootstrap 5.3, system font stack
• 401 Angular unit tests, 1134 Python unit tests passing