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.

apps/admin-web/src/lib/api.ts

@@ -18,6 +18,11 @@ import type {
   InstantTaskListParams,
   InstantTaskListResponse,
   JsonValue,
+  KnowledgeGroup,
+  KnowledgeGroupRequest,
+  KnowledgeItem,
+  KnowledgeTextItemRequest,
+  KnowledgeURLItemRequest,
   Keyword,
   KeywordRequest,
   LoginRequest,
@@ -225,6 +230,51 @@ export const articlesApi = {
   },
 };
 
+export const knowledgeApi = {
+  listGroups() {
+    return apiClient.get<KnowledgeGroup[]>("/api/tenant/knowledge/groups");
+  },
+  createGroup(payload: KnowledgeGroupRequest) {
+    return apiClient.post<KnowledgeGroup, KnowledgeGroupRequest>("/api/tenant/knowledge/groups", payload);
+  },
+  updateGroup(id: number, payload: KnowledgeGroupRequest) {
+    return apiClient.put<null, KnowledgeGroupRequest>(`/api/tenant/knowledge/groups/${id}`, payload);
+  },
+  removeGroup(id: number) {
+    return apiClient.remove<null>(`/api/tenant/knowledge/groups/${id}`);
+  },
+  listItems(groupId?: number) {
+    return apiClient.get<KnowledgeItem[]>("/api/tenant/knowledge/items", {
+      params: groupId ? { group_id: groupId } : undefined,
+    });
+  },
+  createTextItem(payload: KnowledgeTextItemRequest) {
+    return apiClient.post<KnowledgeItem, KnowledgeTextItemRequest>(
+      "/api/tenant/knowledge/items/text",
+      payload,
+    );
+  },
+  createURLItem(payload: KnowledgeURLItemRequest) {
+    return apiClient.post<KnowledgeItem, KnowledgeURLItemRequest>(
+      "/api/tenant/knowledge/items/url",
+      payload,
+    );
+  },
+  async createFileItem(payload: { group_id: number; name?: string; file: File }) {
+    const form = new FormData();
+    form.set("group_id", String(payload.group_id));
+    if (payload.name?.trim()) {
+      form.set("name", payload.name.trim());
+    }
+    form.set("file", payload.file);
+    const { data } = await apiClient.raw.post("/api/tenant/knowledge/items/file", form);
+    return data.data as KnowledgeItem;
+  },
+  removeItem(id: number) {
+    return apiClient.remove<null>(`/api/tenant/knowledge/items/${id}`);
+  },
+};
+
 export interface ArticleGenerationStreamEvent {
   type: string;
   article_id: number;