feat: fix download-to-user matching, add cover art to downloads

- Fix seriesMap key (use Sonarr internal id, not tvdbId)
- Fix Sonarr tag resolution (use tag map like Radarr)
- Use sourceTitle for history record matching
- Fall back to embedded movie/series objects when API timeouts
- Add includeMovie/includeSeries params to queue/history API calls
- Add coverArt field to all download responses (TMDB poster URLs)
- Add cover art display to frontend download cards
- Fix user-summary route to use instance config and tag maps

.env.sample

@@ -0,0 +1,77 @@
+# sofarr Configuration
+# Copy this file to .env and update with your values
+
+# =============================================================================
+# SERVER SETTINGS
+# =============================================================================
+PORT=3001
+
+# Logging level: debug, info, warn, error, silent
+# - debug: Verbose logging for troubleshooting
+# - info:  Standard operational logging (default)
+# - warn:  Only warnings and errors
+# - error: Only errors
+# - silent: No logging
+LOG_LEVEL=info
+
+# =============================================================================
+# EMBY (Authentication - Required)
+# =============================================================================
+EMBY_URL=https://emby.example.com
+EMBY_API_KEY=your-emby-api-key-here
+
+# =============================================================================
+# SABNZBD INSTANCES (JSON Array Format)
+# Add one or more SABnzbd instances as a single-line JSON array
+# Format: [{"name":"instance-name","url":"https://...","apiKey":"..."}]
+# =============================================================================
+SABNZBD_INSTANCES=[{"name":"primary","url":"https://sabnzbd.example.com","apiKey":"your-sabnzbd-api-key"}]
+
+# Legacy single-instance format (optional - still supported)
+# SABNZBD_URL=https://sabnzbd.example.com
+# SABNZBD_API_KEY=your-sabnzbd-api-key
+
+# =============================================================================
+# QBITTORRENT INSTANCES (JSON Array Format)
+# Add one or more qBittorrent instances as a single-line JSON array
+# Uses username/password authentication (not API key)
+# Format: [{"name":"instance-name","url":"https://...","username":"...","password":"..."}]
+# =============================================================================
+QBITTORRENT_INSTANCES=[{"name":"main","url":"https://qbittorrent.example.com","username":"admin","password":"your-password"}]
+
+# Legacy single-instance format (optional - still supported)
+# QBITTORRENT_URL=https://qbittorrent.example.com
+# QBITTORRENT_USERNAME=admin
+# QBITTORRENT_PASSWORD=your-password
+
+# =============================================================================
+# SONARR INSTANCES (JSON Array Format)
+# Add one or more Sonarr instances as a single-line JSON array
+# Format: [{"name":"instance-name","url":"https://...","apiKey":"..."}]
+# =============================================================================
+SONARR_INSTANCES=[{"name":"main","url":"https://sonarr.example.com","apiKey":"your-sonarr-api-key"}]
+
+# Legacy single-instance format (optional - still supported)
+# SONARR_URL=https://sonarr.example.com
+# SONARR_API_KEY=your-sonarr-api-key
+
+# =============================================================================
+# RADARR INSTANCES (JSON Array Format)
+# Add one or more Radarr instances as a single-line JSON array
+# Format: [{"name":"instance-name","url":"https://...","apiKey":"..."}]
+# =============================================================================
+RADARR_INSTANCES=[{"name":"main","url":"https://radarr.example.com","apiKey":"your-radarr-api-key"}]
+
+# Legacy single-instance format (optional - still supported)
+# RADARR_URL=https://radarr.example.com
+# RADARR_API_KEY=your-radarr-api-key
+
+# =============================================================================
+# NOTES
+# =============================================================================
+# 1. All JSON arrays must be on a single line (no line breaks)
+# 2. Instance "name" can be anything descriptive (e.g., "main", "4k", "backup")
+# 3. URLs should include protocol (http:// or https://)
+# 4. For qBittorrent, ensure Web UI is enabled in settings
+# 5. User downloads are matched by tags in Sonarr/Radarr - tag your media!
+# =============================================================================