Constant MIGRATION_008 

const MIGRATION_008: &str = r#"
-- Add video-specific metadata columns to downloads
ALTER TABLE downloads ADD COLUMN series_name TEXT;
ALTER TABLE downloads ADD COLUMN season_name TEXT;
ALTER TABLE downloads ADD COLUMN episode_number INTEGER;
ALTER TABLE downloads ADD COLUMN season_number INTEGER;
ALTER TABLE downloads ADD COLUMN quality_preset TEXT DEFAULT 'original';
ALTER TABLE downloads ADD COLUMN media_type TEXT DEFAULT 'audio';

-- Add pinning support to items table
-- Pinned items are protected from cache clear operations
ALTER TABLE items ADD COLUMN is_pinned INTEGER DEFAULT 0;

-- Index for efficiently finding pinned items
CREATE INDEX IF NOT EXISTS idx_items_pinned ON items(is_pinned) WHERE is_pinned = 1;

-- Index for efficiently querying downloads by series
CREATE INDEX IF NOT EXISTS idx_downloads_series ON downloads(series_name) WHERE series_name IS NOT NULL;

-- Index for filtering by media type
CREATE INDEX IF NOT EXISTS idx_downloads_media_type ON downloads(media_type);
"#;

Migration to add video download support and item pinning

• Adds video-specific metadata columns to downloads (series/episode info, quality preset)
• Adds media_type to distinguish audio vs video downloads
• Adds is_pinned column to items table for protecting metadata from cache clear