Restore video search base URL handling

backend/services/cse.go

@@ -63,7 +63,7 @@ func NewSearchService(baseURL, googleVideoEngine, webEngine string) *SearchServi
 		webEngine = "google"
 	}
 	return &SearchService{
-		BaseURL:           strings.TrimRight(baseURL, "/"),
+		BaseURL:           normalizeBaseURL(baseURL),
 		GoogleVideoEngine: googleVideoEngine,
 		WebEngine:         webEngine,
 		Client:            &http.Client{Timeout: 20 * time.Second},
@@ -77,6 +77,17 @@ func NewSearchService(baseURL, googleVideoEngine, webEngine string) *SearchServi
 	}
 }
 
+func normalizeBaseURL(raw string) string {
+	trimmed := strings.TrimSpace(raw)
+	if trimmed == "" {
+		return ""
+	}
+	if !strings.Contains(trimmed, "://") {
+		trimmed = "http://" + trimmed
+	}
+	return strings.TrimRight(trimmed, "/")
+}
+
 func (s *SearchService) SearchMedia(queries []string, enabledPlatforms map[string]bool) ([]SearchResult, SearchExecutionMeta, error) {
 	return s.SearchMediaWithDeadline(queries, enabledPlatforms, time.Time{})
 }