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/knowledge.ts

@@ -0,0 +1,26 @@
+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[];
+}