fix(search): scope global result types

internal/handler/api/v1/search_handler.go

@@ -15,6 +15,13 @@ import (
 
 const chatwootSearchPerPage = 15
 
+var chatwootGlobalSearchTypes = []search.SearchResultType{
+	search.ResultTypeConversation,
+	search.ResultTypeContact,
+	search.ResultTypeMessage,
+	search.ResultTypeArticle,
+}
+
 // SearchHandler handles global search API endpoints.
 // Reference: Chatwoot GlobalSearchService — cross-entity search with advanced filtering.
 type SearchHandler struct {
@@ -79,6 +86,7 @@ func (h *SearchHandler) GlobalSearch(c *gin.Context) {
 
 	query := c.Query("q")
 	filter := parseChatwootSearchFilter(c)
+	filter.Types = append([]search.SearchResultType(nil), chatwootGlobalSearchTypes...)
 
 	result, svcErr := h.svc.GlobalSearch(c.Request.Context(), accountID, query, &filter)
 	if svcErr != nil {