M3: console.log -> Logger + UI redesign (QuestionBank) + S7/A9/A10/A11/U11 bug fixes + #1/#2/#3/#4 enhancements + i18n for QuestionBank pages

server/src/knowledge-group/knowledge-group.service.ts

@@ -1,5 +1,6 @@
 import {
   Injectable,
+  Logger,
   NotFoundException,
   ForbiddenException,
   Inject,
@@ -47,6 +48,8 @@ export interface PaginatedGroups {
 
 @Injectable()
 export class KnowledgeGroupService {
+  private readonly logger = new Logger(KnowledgeGroupService.name);
+
   constructor(
     @InjectRepository(KnowledgeGroup)
     private groupRepository: Repository<KnowledgeGroup>,
@@ -62,7 +65,7 @@ export class KnowledgeGroupService {
     userId: string,
     tenantId: string,
   ): Promise<GroupWithFileCount[]> {
-    console.log('[KnowledgeGroup findAll] userId:', userId, 'tenantId:', tenantId);
+    this.logger.log('[KnowledgeGroup findAll] userId: ' + userId + ', tenantId: ' + tenantId);
     // Return all groups for the tenant with file counts
     const queryBuilder = this.groupRepository
       .createQueryBuilder('group')
@@ -147,7 +150,7 @@ export class KnowledgeGroupService {
     tenantId: string,
     createGroupDto: CreateGroupDto,
   ): Promise<KnowledgeGroup> {
-    console.log('[KnowledgeGroup create] userId:', userId, 'tenantId:', tenantId);
+    this.logger.log('[KnowledgeGroup create] userId: ' + userId + ', tenantId: ' + tenantId);
     const group = this.groupRepository.create({
       ...createGroupDto,
       parentId: createGroupDto.parentId ?? null,
@@ -155,7 +158,7 @@ export class KnowledgeGroupService {
     });
 
     const saved = await this.groupRepository.save(group);
-    console.log('[KnowledgeGroup create] saved group tenantId:', saved.tenantId);
+    this.logger.log('[KnowledgeGroup create] saved group tenantId: ' + saved.tenantId);
     return saved;
   }
 
@@ -229,7 +232,7 @@ export class KnowledgeGroupService {
           );
         }
       } catch (error) {
-        console.error(
+        this.logger.error(
           `Failed to delete file ${file.id} when deleting group ${id}`,
           error,
         );