feat: add new interfaces, services, and utilities for API integration

refactor: reorganize type definitions and improve type safety

build: add lodash and @types/lodash as dependencies

chore: update tsconfig and vite config for path aliases

style: improve code organization and add documentation comments

fix: correct type usage in LanguageSwitcher component

perf: implement snackbar provider for global notifications

test: add new test interfaces and utility functions

ci: update pnpm-lock.yaml with new dependencies

src/interfaces/request/agent.ts

@@ -0,0 +1,4 @@
+export interface IDebugSingleRequestBody {
+  component_id: string;
+  params: Record<string, any>;
+}

src/interfaces/request/base.ts

@@ -0,0 +1,7 @@
+export interface IPaginationRequestBody {
+  keywords?: string;
+  page?: number;
+  page_size?: number; // name|create|doc_num|create_time|update_time, default：create_time
+  orderby?: string;
+  desc?: string;
+}

src/interfaces/request/chat.ts

@@ -0,0 +1,11 @@
+export interface IFeedbackRequestBody {
+  messageId?: string;
+  thumbup?: boolean;
+  feedback?: string;
+}
+
+export interface IAskRequestBody {
+  question: string;
+  kb_ids: string[];
+  search_id?: string;
+}

src/interfaces/request/document.ts

@@ -0,0 +1,18 @@
+export interface IChangeParserConfigRequestBody {
+  pages: number[][];
+  chunk_token_num: number;
+  layout_recognize: boolean;
+  task_page_size: number;
+}
+
+export interface IChangeParserRequestBody {
+  parser_id: string;
+  pipeline_id: string;
+  doc_id: string;
+  parser_config: IChangeParserConfigRequestBody;
+}
+
+export interface IDocumentMetaRequestBody {
+  documentId: string;
+  meta: string; // json format string
+}

src/interfaces/request/file-manager.ts

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+import { IPaginationRequestBody } from './base';
+
+export interface IFileListRequestBody extends IPaginationRequestBody {
+  parent_id?: string; // folder id
+}
+
+interface BaseRequestBody {
+  parentId: string;
+}
+
+export interface IConnectRequestBody {
+  fileIds: string[];
+  kbIds: string[];
+}

src/interfaces/request/flow.ts

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+export interface IDebugSingleRequestBody {
+  component_id: string;
+  params: any[];
+}

src/interfaces/request/knowledge.ts

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+export interface ITestRetrievalRequestBody {
+  question: string;
+  similarity_threshold: number;
+  vector_similarity_weight: number;
+  rerank_id?: string;
+  top_k?: number;
+  use_kg?: boolean;
+  highlight?: boolean;
+  kb_id?: string[];
+}
+
+export interface IFetchKnowledgeListRequestBody {
+  owner_ids?: string[];
+}
+
+export interface IFetchKnowledgeListRequestParams {
+  kb_id?: string;
+  keywords?: string;
+  page?: number;
+  page_size?: number;
+}
+
+export interface IFetchDocumentListRequestBody {
+  suffix?: string[];
+  run_status?: string[];
+}

src/interfaces/request/llm.ts

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+export interface IAddLlmRequestBody {
+  llm_factory: string; // Ollama
+  llm_name: string;
+  model_type: string;
+  api_base?: string; // chat|embedding|speech2text|image2text
+  api_key: string;
+  max_tokens: number;
+}
+
+export interface IDeleteLlmRequestBody {
+  llm_factory: string; // Ollama
+  llm_name?: string;
+}

src/interfaces/request/mcp.ts

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+import { IExportedMcpServer } from '@/interfaces/database/mcp';
+
+export interface ITestMcpRequestBody {
+  server_type: string;
+  url: string;
+  headers?: Record<string, any>;
+  variables?: Record<string, any>;
+  timeout?: number;
+}
+
+export interface IImportMcpServersRequestBody {
+  mcpServers: Record<
+    string,
+    Pick<IExportedMcpServer, 'type' | 'url' | 'authorization_token'>
+  >;
+}

src/interfaces/request/system.ts

@@ -0,0 +1,5 @@
+export interface ISetLangfuseConfigRequestBody {
+  secret_key: string;
+  public_key: string;
+  host: string;
+}