feat: implement Live/Remix filtering and add CI/CD pipeline

This commit includes:

1. Live/Remix Filtering Feature:
   - Added ignore_live and ignore_remix columns to artist_settings table (migration 010)
   - Updated ArtistSettings struct with IgnoreLive and IgnoreRemix fields
   - Modified SaveArtistSettings and UpdateArtistSettings to handle new fields
   - Extended FilterOptions struct with IgnoreLive and IgnoreRemix
   - Updated ApplyTypeToggles and ApplyTypeTogglesToReleaseGroups to filter Live/Remix types
   - Added toggleIgnoreLive and toggleIgnoreRemix handlers in web layer
   - Updated ArtistData view model and artist.html template with new toggle UI
   - Comprehensive test coverage for all new functionality

2. CI/CD Pipeline with Gitea Actions:
   - Added .gitea/workflows/docker-build.yml for automated Docker builds
   - Workflow triggers on pushes to main/master and tags, plus PRs
   - Runs Go tests before building
   - Builds and pushes multi-architecture Docker images to gitea.mrixs.me
   - Includes caching for faster subsequent builds
   - Proper tagging strategy (branch, semver, SHA)
   - CI-CD-GUIDE.md documentation

3. Cleanup:
   - Removed temporary build artifacts and coverage files

internal/database/artist_settings.go

@@ -7,24 +7,18 @@ import (
 	"time"
 )
 
-// DBer is the minimal query interface satisfied by both *sql.DB and *sql.Tx,
-// so callers can run statements inside or outside a transaction.
-type DBer interface {
-	Exec(query string, args ...interface{}) (sql.Result, error)
-}
-
 // GetArtistSettings retrieves an artist_settings row by ID.
 // Returns sql.ErrNoRows if the artist is not found.
 func GetArtistSettings(db *DB, id string) (*ArtistSettings, error) {
 	var (
-		s         ArtistSettings
-		mbid      sql.NullString
+		s          ArtistSettings
+		mbid       sql.NullString
 		lastSynced sql.NullTime
 	)
 	err := db.Conn().QueryRow(
-		"SELECT id, name, mbid, ignore_singles, ignore_compilations, monitored, last_synced FROM artist_settings WHERE id = ?",
+		"SELECT id, name, mbid, ignore_singles, ignore_compilations, ignore_live, ignore_remix, monitored, last_synced FROM artist_settings WHERE id = ?",
 		id,
-	).Scan(&s.ID, &s.Name, &mbid, &s.IgnoreSingles, &s.IgnoreCompilations, &s.Monitored, &lastSynced)
+	).Scan(&s.ID, &s.Name, &mbid, &s.IgnoreSingles, &s.IgnoreCompilations, &s.IgnoreLive, &s.IgnoreRemix, &s.Monitored, &lastSynced)
 	if err != nil {
 		if errors.Is(err, sql.ErrNoRows) {
 			return nil, ErrArtistNotFound
@@ -60,17 +54,19 @@ func TouchArtistSynced(db DBer, artistID string, syncedAt time.Time) error {
 // every periodic artist sync.
 func SaveArtistSettings(db *DB, settings *ArtistSettings) error {
 	_, err := db.Conn().Exec(`
-		INSERT INTO artist_settings (id, name, mbid, ignore_singles, ignore_compilations, monitored, last_synced)
-		VALUES (?, ?, ?, ?, ?, ?, ?)
+		INSERT INTO artist_settings (id, name, mbid, ignore_singles, ignore_compilations, ignore_live, ignore_remix, monitored, last_synced)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
 		ON CONFLICT(id) DO UPDATE SET
 			name = excluded.name,
 			mbid = COALESCE(excluded.mbid, artist_settings.mbid),
 			ignore_singles = excluded.ignore_singles,
 			ignore_compilations = excluded.ignore_compilations,
+			ignore_live = excluded.ignore_live,
+			ignore_remix = excluded.ignore_remix,
 			monitored = excluded.monitored,
 			last_synced = COALESCE(excluded.last_synced, artist_settings.last_synced)
 	`,
-		settings.ID, settings.Name, nullIfEmpty(settings.MBID), settings.IgnoreSingles, settings.IgnoreCompilations, settings.Monitored, nullIfEmptyTime(settings.LastSynced),
+		settings.ID, settings.Name, nullIfEmpty(settings.MBID), settings.IgnoreSingles, settings.IgnoreCompilations, settings.IgnoreLive, settings.IgnoreRemix, settings.Monitored, nullIfEmptyTime(settings.LastSynced),
 	)
 	if err != nil {
 		return fmt.Errorf("save artist settings: %w", err)
@@ -99,7 +95,7 @@ func nullIfEmptyTime(t time.Time) interface{} {
 // GetAllArtistSettings returns all rows from artist_settings.
 func GetAllArtistSettings(db *DB) ([]ArtistSettings, error) {
 	rows, err := db.Conn().Query(
-		"SELECT id, name, mbid, ignore_singles, ignore_compilations, monitored, last_synced FROM artist_settings",
+		"SELECT id, name, mbid, ignore_singles, ignore_compilations, ignore_live, ignore_remix, monitored, last_synced FROM artist_settings",
 	)
 	if err != nil {
 		return nil, fmt.Errorf("query all artist settings: %w", err)
@@ -111,7 +107,7 @@ func GetAllArtistSettings(db *DB) ([]ArtistSettings, error) {
 		var s ArtistSettings
 		var mbid sql.NullString
 		var lastSynced sql.NullTime
-		if err := rows.Scan(&s.ID, &s.Name, &mbid, &s.IgnoreSingles, &s.IgnoreCompilations, &s.Monitored, &lastSynced); err != nil {
+		if err := rows.Scan(&s.ID, &s.Name, &mbid, &s.IgnoreSingles, &s.IgnoreCompilations, &s.IgnoreLive, &s.IgnoreRemix, &s.Monitored, &lastSynced); err != nil {
 			return nil, fmt.Errorf("scan artist settings: %w", err)
 		}
 		s.MBID = mbid.String
@@ -127,7 +123,7 @@ func GetAllArtistSettings(db *DB) ([]ArtistSettings, error) {
 }
 
 // UpdateArtistSettings updates specific fields of an artist_settings row by ID.
-// The updates map keys must match column names: "name", "ignore_singles", "ignore_compilations", "monitored".
+// The updates map keys must match column names: "name", "ignore_singles", "ignore_compilations", "monitored", "ignore_live", "ignore_remix".
 func UpdateArtistSettings(db *DB, id string, updates map[string]interface{}) error {
 	if len(updates) == 0 {
 		return fmt.Errorf("no updates provided")
@@ -164,6 +160,18 @@ func UpdateArtistSettings(db *DB, id string, updates map[string]interface{}) err
 			}
 			setClause += "ignore_compilations = ?"
 			args = append(args, val)
+		case "ignore_live":
+			if setClause != "" {
+				setClause += ", "
+			}
+			setClause += "ignore_live = ?"
+			args = append(args, val)
+		case "ignore_remix":
+			if setClause != "" {
+				setClause += ", "
+			}
+			setClause += "ignore_remix = ?"
+			args = append(args, val)
 		case "monitored":
 			if setClause != "" {
 				setClause += ", "