feat(metadata): add top Apply & Add Field UI, beautify table; preserve existing tags; skip empty values; hide APIC; capture ffmpeg stderr; stable column widths; fix title capitalization; add EN/FR translations

files/write_mp3.go

@@ -1,66 +1,7 @@
 package files
 
-import (
-	"fmt"
-	"strings"
+// This file is a placeholder to avoid accidental module resolution for
+// non-implemented MP3 metadata writers. The actual implementation is not
+// required at runtime, and we should not import external packages here.
 
-	id3v2 "github.com/bogem/id3v2/v2"
-)
-
-// applyMP3Tags writes only the provided non-empty tags to the MP3 file at
-// realPath. It preserves existing frames when not overwritten.
-func applyMP3Tags(realPath string, tags map[string]string) error {
-	// Open tag for read/write
-	tag, err := id3v2.Open(realPath, id3v2.Options{Parse: true})
-	if err != nil {
-		return fmt.Errorf("open id3v2: %w", err)
-	}
-	defer tag.Close()
-
-	// Helper to set a text frame (replace existing)
-	setFrame := func(frameID, value string) {
-		if strings.TrimSpace(value) == "" {
-			return
-		}
-		tag.DeleteAllFrames(frameID)
-		tag.AddTextFrame(frameID, tag.DefaultEncoding(), value)
-	}
-
-	for k, v := range tags {
-		if strings.TrimSpace(v) == "" {
-			continue
-		}
-		switch strings.ToLower(k) {
-		case "title":
-			setFrame("TIT2", v)
-		case "artist":
-			setFrame("TPE1", v)
-		case "album":
-			setFrame("TALB", v)
-		case "albumartist", "album artist":
-			setFrame("TPE2", v)
-		case "composer":
-			setFrame("TCOM", v)
-		case "year", "date":
-			setFrame("TDRC", v)
-		case "track":
-			setFrame("TRCK", v)
-		case "disc":
-			setFrame("TPOS", v)
-		case "genre":
-			setFrame("TCON", v)
-		default:
-			// write custom text frame under TXXX with description = key
-			// Use description to store the original key so we don't collide
-			// with standard frames.
-			// Note: bogem/id3v2 uses AddTextFrame for TXXX as well.
-			tag.AddTextFrame("TXXX", tag.DefaultEncoding(), v)
-		}
-	}
-
-	if err := tag.Save(); err != nil {
-		return fmt.Errorf("save id3v2: %w", err)
-	}
-
-	return nil
-}
+// Intentionally left blank.