Refine Full Player UI, album palette management, and component styling

- **Settings & Theme Management**:
    - Adds "Force Album Palette Regeneration" in Developer settings, allowing users to select a song and rebuild all its cached color variants from scratch.
    - Implements `PaletteRegenerateSongSheetContent` with a searchable song list and progress indicator for palette rebuilding.
    - Updates `ThemeStateHolder` and `ColorSchemeProcessor` to support full style invalidation and clearing of the extracted color cache.
- **Full Player & Playback UI**:
    - Overhauls the color palette in `FullPlayerContent` to use semantic colors (e.g., `onPrimaryContainer`, `secondaryContainer`) for better contrast and visual consistency.
    - Updates `AnimatedPlaybackControls` to support independent color/tint customization for previous, play/pause, and next buttons.
    - Improves visibility of the "Cast" connection state by removing fixed alpha overlays on album art.
    - Refines playback control chips and secondary action rows (shuffle, repeat, favorite) with updated container colors and corner smoothing.
- **Component Styling & Theming**:
    - Wraps `QueueBottomSheet` and `LyricsMoreBottomSheet` in localized `MaterialTheme` providers to ensure they inherit the active album-based color scheme.
    - Replaces manual alpha backgrounds with `graphicsLayer` alpha on the playback queue scrim for better performance.
    - Updates button backgrounds in the compact player to use `onPrimary` for improved clarity against dynamic backgrounds.
- **Refactoring**:
    - Adds `forceRegenerateAlbumPaletteForSong` to `PlayerViewModel` to bridge the UI and theme processing logic.
    - Cleans up unused imports and unused variables across player components.

- **Theming & Color Logic**:
    - Improves `GenreThemeUtils` by introducing an `LruCache` for `ColorScheme` instances to optimize performance.
    - Refactors `getGenreThemeColor` and `getGenreColorScheme` to support explicit hex color overrides (dark/light) from `Genre` models.
    - Adds logic to derive consistent secondary and tertiary colors using seed-based scheme generation.
    - Implements fallback mechanisms for seed color resolution based on genre IDs.
- **Genre Detail Screen**:
    - Integrates the updated dynamic theming to ensure the entire screen (including status bar and components) reflects genre-specific colors.
    - Optimizes `GenreDetailScreen` by resolving the genre from the library state to ensure metadata consistency.
    - Refines typography and layout, removing unnecessary `CompositionLocalProvider` wrappers and simplifying color references.
    - Ensures proper "Shuffle" labels and display names are used when playing music from the genre view.
- **Data & Repositories**:
    - Updates `MusicRepositoryImpl` to sanitize genre IDs by replacing slashes with underscores, preventing navigation and lookup issues.
- **UI Components**:
    - Updates `GenreCategoriesGrid` to utilize the enhanced `getGenreThemeColor` signature for more accurate grid item coloring.

- **Dynamic Theming**:
    - Introduces `albumColorScheme` which reactively updates the screen's color palette based on the current album art.
    - Integrates `getAlbumColorSchemeFlow` from `playerViewModel` to fetch and collect theme states for specific album URIs.
    - Wraps the screen content in a localized `MaterialTheme` provider to apply the album-specific colors (supporting both light and dark modes).
- **UI Structure**:
    - Refactors `AlbumDetailScreen` layout to accommodate the new theme provider.
    - Maintains existing state management for loading indicators, error handling, and the collapsing top bar within the new theme context.
- **State Management**:
    - Updates `AlbumDetailScreen` to use `remember` and `collectAsState` for efficiently handling color scheme transitions when the album changes.

- **UI Consistency**:
    - Wraps the `SongInfoBottomSheet` in `UnifiedPlayerSheet` and `GenreDetailScreen` with a `MaterialTheme` that uses the context-specific color scheme (`albumColorScheme` and `genreColorScheme` respectively).
    - This ensures that the bottom sheet's UI components (buttons, text, background) correctly inherit the dynamic colors derived from the album art or genre, providing a more cohesive and visually integrated user experience.

…player components

- **Settings & Navigation**:
    - Replaces the `Album Art Palette Style` inline selector in `SettingsCategoryScreen` with a dedicated `SettingsItem` that navigates to a new `PaletteStyleSettingsScreen`.
    - Registers the `PaletteStyle` route in `AppNavigation` with standard transitions.
    - Adds `PaletteStyle` to the list of routes that hide the navigation bar in `MainActivity`.
- **Theme & UI Consistency**:
    - Wraps `CastBottomSheet` in `UnifiedPlayerSheet` with a explicit `MaterialTheme` block to ensure `LocalMaterialTheme` colors are correctly applied to the component and its children.
    - Wraps `FetchLyricsDialog` in both `LyricsSheet` and `FullPlayerContent` with `MaterialTheme` to ensure consistent styling and color scheme application when displayed over player content.
- **Components**:
    - Introduces `PaletteStyleSettingsScreen` to provide a live preview and specialized interface for choosing tonal recipes for album-art themes.

…ayer sheet's visual transitions and theme integration.

- **Palette Style Settings**:
    - Introduces `PaletteStyleSettingsScreen`, allowing users to choose between different color schemes (Tonal Spot, Vibrant, Expressive, Fruit Salad, Monochrome) for the player UI based on album art.
    - Features a high-fidelity "Skeleton Preview" of the player UI that dynamically updates to reflect selected palette styles.
    - Includes a description for each palette style to guide user choice.
- **Unified Player Sheet**:
    - Implements a scale-in and fade-in animation (`miniAppearProgress`) for the player area when album art color schemes are loading.
    - Refines the "bounce" collapse animation logic to only trigger when explicitly collapsing from an expanded state.
    - Improves theme handling by conditionally applying the album art color scheme or system scheme based on the `playerThemePreference`.
    - Updates shadow and elevation logic to smoothly interpolate during expansion and theme transitions.
- **Player & ViewModels**:
    - Exposes `playerThemePreference` in `PlayerViewModel` to allow components to react to theme setting changes.
    - Updates `UnifiedPlayerSheet` to use `CompositionLocalProvider` for more stable theme propagation across mini and full player transitions.