feat: Enhance Kol Generation Service with web search and knowledge group support

- Added `EnableWebSearch` and `KnowledgeGroupIDs` fields to `KolGenerationSubmitRequest`.
- Updated `Submit` method in `KolGenerationService` to handle new request fields.
- Integrated web search and knowledge group validation based on card configuration.
- Introduced caching mechanisms in `KolPackageService`, `KolPromptService`, and `KolSubscriptionAdminService` to improve performance.
- Implemented knowledge context resolution in `KolGenerationWorker` to enrich prompts with relevant knowledge snippets.
- Added utility functions for handling card configuration in both backend and frontend.
- Created tests for knowledge extraction and rendering to ensure accuracy and reliability.

server/internal/tenant/transport/article_handler.go

@@ -74,7 +74,7 @@ func (h *ArticleHandler) List(c *gin.Context) {
 	if v := c.Query("publish_status"); v != "" {
 		params.PublishStatus = &v
 	}
-	if v := c.Query("source_type"); v != "" {
+	if v := normalizeSourceTypeParam(c.Query("source_type")); v != "" {
 		params.SourceType = &v
 	}
 	if v := c.Query("generation_mode"); v != "" {
@@ -85,6 +85,11 @@ func (h *ArticleHandler) List(c *gin.Context) {
 			params.TemplateID = &id
 		}
 	}
+	if v := c.Query("kol_prompt_id"); v != "" {
+		if id, err := strconv.ParseInt(v, 10, 64); err == nil {
+			params.KolPromptID = &id
+		}
+	}
 	if v := c.Query("prompt_rule_id"); v != "" {
 		if id, err := strconv.ParseInt(v, 10, 64); err == nil {
 			params.PromptRuleID = &id
@@ -118,6 +123,29 @@ func (h *ArticleHandler) List(c *gin.Context) {
 	response.Success(c, data)
 }
 
+func normalizeSourceTypeParam(raw string) string {
+	if strings.TrimSpace(raw) == "" {
+		return ""
+	}
+
+	parts := strings.Split(raw, ",")
+	out := make([]string, 0, len(parts))
+	seen := make(map[string]struct{}, len(parts))
+	for _, part := range parts {
+		value := strings.TrimSpace(part)
+		if value == "" {
+			continue
+		}
+		if _, exists := seen[value]; exists {
+			continue
+		}
+		seen[value] = struct{}{}
+		out = append(out, value)
+	}
+
+	return strings.Join(out, ",")
+}
+
 func (h *ArticleHandler) GenerateFromRule(c *gin.Context) {
 	var req app.GenerateFromRuleRequest
 	if err := c.ShouldBindJSON(&req); err != nil {