fix: unescape HTML entities in SearXNG article titles and descriptions

go-backend/internal/services/official_accounts_service.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"encoding/xml"
 	"fmt"
+	"html"
 	"io"
 	"net/http"
 	"strings"
@@ -291,9 +292,9 @@ func (s *OfficialAccountsService) FetchSearXNGNews(ctx context.Context, site str
 			continue
 		}
 		item := RSSItem{
-			Title:       r.Title,
+			Title:       html.UnescapeString(r.Title),
 			Link:        r.URL,
-			Description: r.Content,
+			Description: html.UnescapeString(r.Content),
 			GUID:        r.URL, // use the actual URL as GUID for dedup
 		}
 		if r.PublishedDate != "" {