fix: resolve syntax errors in author_menu.go and main.go

- Fix unterminated string in author_menu.go line 418
- Fix invalid escape sequences in escapeDrawtextText function
- Remove orphaned code outside function body in main.go
- Fix extra parentheses causing syntax errors
- Ensure clean compilation for successful build

author_menu.go

@@ -415,8 +415,7 @@ func writeSpumuxXML(path, overlayPath, highlightPath, selectPath string, buttons
 	var b strings.Builder
 	b.WriteString("<subpictures>\n")
 	b.WriteString("  <stream>\n")
-	b.WriteString(fmt.Sprintf("    <spu start=\"00:00:00.00\" end=\"00:00:30.00\" image=\"%s\" highlight=\"%s\" select=\"%s\" force=\"yes\">
-",
+	b.WriteString(fmt.Sprintf("    <spu start=\"00:00:00.00\" end=\"00:00:30.00\" image=\"%s\" highlight=\"%s\" select=\"%s\" force=\"yes\"/>",
 		escapeXMLAttr(overlayPath),
 		escapeXMLAttr(highlightPath),
 		escapeXMLAttr(selectPath),
@@ -475,9 +474,9 @@ func findVTLogoPath() string {
 }
 
 func escapeDrawtextText(text string) string {
-	escaped := strings.ReplaceAll(text, "\", "\\\\")
+	escaped := strings.ReplaceAll(text, "\\", "\\\\")
 	escaped = strings.ReplaceAll(escaped, ":", "\\:")
-	escaped = strings.ReplaceAll(escaped, "'", "\' ")
+	escaped = strings.ReplaceAll(escaped, "'", "\\'")
 	escaped = strings.ReplaceAll(escaped, "%", "\\%")
 	return escaped
 }

main.go

@@ -10996,12 +10996,6 @@ func newPlaySession(path string, w, h int, fps, duration float64, targetW, targe
 		unifiedAdapter: unifiedAdapter,
 	}
 }
-	if targetW <= 0 {
-		targetW = 640
-	}
-	if targetH <= 0 {
-		targetH = int(float64(targetW) * (float64(h) / float64(utils.MaxInt(w, 1))))
-	}
 
 	// Create UnifiedPlayer adapter instead of dual-process player
 	adapter := player.NewUnifiedPlayerAdapter(path, w, h, fps, duration, targetW, targetH, prog, frameFunc, img)