v0.3.0 - UI Improvements & State Reliability

New Features

Navigation Enhancements

• Active-route highlighting - Visual indicator shows which page you're currently on
• Lucide icons - All navbar links now have icons for better visual identification
• Improved navbar spacing - Added padding for better visual balance

CSS Design System

• Design tokens for colors, spacing, radius, shadows, and transitions
• Focus ring styles for improved keyboard accessibility
• Consistent styling across all components

Responsive Layouts

• Dashboard grid adapts to screen size (1/2/3 columns)
• Generator page stacks on mobile screens
• Doctor page uses responsive grid

Real Provider Tests

• Settings page now tests actual AI provider connections
• Settings page now tests actual embedding provider connections
• Replaces previous stub implementations

State Management

• Global cleanup handlers for background tasks on client disconnect
• Improved state isolation between clients

Bug Fixes

TaggingState

• Added missing set_edit_tags, set_edit_environments, set_edit_instruments handlers

UI Fixes

• Fixed operator precedence bug in tagging page button disabled logic
• Fixed Library regenerate confirm dialog Cancel button
• Fixed track table checkbox callbacks to accept optional checked value

Changes

App Configuration

• Consolidated app entrypoints to use consistent orange theme and dark mode
• Dashboard and Doctor on_load now wired at app level
• Library stats now use SQLiteManager for consistency

Testing

All 116 tests passing ✅

Files Changed

• plexmix_ui/plexmix_ui.py - Consolidated app configuration
• src/plexmix/ui/app.py - Added doctor route
• src/plexmix/ui/components/navbar.py - Icons, active states, padding
• src/plexmix/ui/states/tagging_state.py - Missing handlers
• src/plexmix/ui/states/settings_state.py - Real provider tests
• src/plexmix/ui/states/library_state.py - Cleanup handlers
• src/plexmix/ui/pages/*.py - Responsive grids, bug fixes
• assets/styles.css - Design tokens, transitions
• tests/ui/test_states.py - New unit tests

Installation

```bash
pip install plexmix==0.3.0
```

Or update existing installation:

```bash
pip install --upgrade plexmix
```