feat: add knowledge management functionality with CRUD operations and database schema

- Implemented KnowledgeHandler for managing knowledge groups and items, including listing, creating, updating, and deleting operations.
- Added database migration scripts to create necessary tables for knowledge management, including knowledge_groups, knowledge_items, knowledge_parse_tasks, and knowledge_chunks_meta.
- Introduced prompt_rule_knowledge_groups table to associate prompt rules with knowledge groups.

packages/shared-types/src/index.ts

@@ -526,6 +526,48 @@ export interface Competitor {
   created_at: string;
 }
 
+export interface KnowledgeGroup {
+  id: number;
+  name: string;
+  parent_id: number | null;
+  sort_order: number;
+  item_count: number;
+  created_at: string;
+  children: KnowledgeGroup[];
+}
+
+export interface KnowledgeGroupRequest {
+  name: string;
+  parent_id?: number | null;
+  sort_order?: number;
+}
+
+export interface KnowledgeItem {
+  id: number;
+  group_id: number;
+  group_name: string;
+  name: string;
+  source_type: "text" | "document" | "website";
+  source_uri: string | null;
+  status: string;
+  size_bytes: number;
+  error_message: string | null;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface KnowledgeTextItemRequest {
+  group_id: number;
+  name: string;
+  content: string;
+}
+
+export interface KnowledgeURLItemRequest {
+  group_id: number;
+  name: string;
+  url: string;
+}
+
 // --- Prompt Rule Groups ---
 
 export interface PromptRuleGroup {
@@ -550,12 +592,19 @@ export interface PromptRule {
   scene: string | null;
   default_tone: string | null;
   default_word_count: number | null;
+  knowledge_group_ids: number[];
+  knowledge_groups: KnowledgeGroupOption[];
   status: "enabled" | "disabled";
   article_count: number;
   created_at: string;
   updated_at: string;
 }
 
+export interface KnowledgeGroupOption {
+  id: number;
+  name: string;
+}
+
 export interface PromptRuleRequest {
   group_id?: number | null;
   name: string;
@@ -563,6 +612,7 @@ export interface PromptRuleRequest {
   scene?: string;
   default_tone?: string;
   default_word_count?: number;
+  knowledge_group_ids?: number[];
 }
 
 export interface PromptRuleListParams {