feat: implement QuestionBank CRUD with pagination and template query

- Add pagination support to findAll (page, limit query params)
- Add findByTemplateId method to service
- Add GET /by-template/:templateId endpoint to controller
- Service already includes CRUD for QuestionBank and QuestionBankItem

web/services/chunkConfigService.ts

@@ -0,0 +1,37 @@
+import { apiClient } from './apiClient';
+
+export interface ChunkConfigLimits {
+  maxChunkSize: number;        // Max chunk size (tokens)
+  maxOverlapSize: number;      // Max overlap size (tokens)
+  minOverlapSize: number;      // Min overlap size (tokens)
+  defaultChunkSize: number;    // Default chunk size
+  defaultOverlapSize: number;  // Default overlap size
+  modelInfo: EmbeddingModelLimit; // Model info
+}
+
+export interface EmbeddingModelLimit {
+  name: string;              // Model name
+  maxInputTokens: number;    // Model input limit
+  maxBatchSize: number;      // Model batch limit
+  expectedDimensions: number; // Expected vector dimensions
+}
+
+export const chunkConfigService = {
+  
+  formatLimits(limits: ChunkConfigLimits): string {
+    return [
+      `Model: ${limits.modelInfo.name}`,
+      `Max Chunk: ${limits.maxChunkSize} tokens`,
+      `Max Overlap: ${limits.maxOverlapSize} tokens`,
+      `Batch Limit: ${limits.modelInfo.maxBatchSize}`,
+      `Vector Dimensions: ${limits.modelInfo.expectedDimensions}`,
+    ].join(' | ');
+  },
+
+  async getLimits(embeddingModelId: string, token?: string): Promise<ChunkConfigLimits> {
+    const response = await apiClient.get<ChunkConfigLimits>(
+      `/knowledge-bases/chunk-config/limits?embeddingModelId=${embeddingModelId}`
+    );
+    return response.data;
+  },
+};