[TS-FIX] fix: Fix TypeScript errors in ai and budgets modules

AI module:
- Remove unused imports (DataSource, ERP_ROLES, LessThan, MoreThanOrEqual)
- Fix AIUsageLog properties (promptTokens, completionTokens)
- Fix AIModel property (modelId, inputCostPer1k)
- Add types to API response parsing

Budgets module (partial):
- Convert ConceptoService from extends BaseService to standalone
- Fix concepto.controller pagination format

Remaining: presupuesto.service needs conversion to standalone

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/modules/budgets/controllers/concepto.controller.ts

@@ -65,7 +65,7 @@ export function createConceptoController(dataSource: DataSource): Router {
       res.status(200).json({
         success: true,
         data: result.data,
-        pagination: result.meta,
+        pagination: { total: result.total, page: result.page, limit: result.limit, totalPages: result.totalPages },
       });
     } catch (error) {
       next(error);

src/modules/budgets/services/concepto.service.ts

@@ -7,10 +7,22 @@
  * @module Budgets
  */
 
-import { Repository, IsNull } from 'typeorm';
-import { BaseService, ServiceContext, PaginatedResult } from '../../../shared/services/base.service';
+import { Repository, IsNull, FindOptionsWhere } from 'typeorm';
 import { Concepto } from '../entities/concepto.entity';
 
+interface ServiceContext {
+  tenantId: string;
+  userId?: string;
+}
+
+interface PaginatedResult<T> {
+  data: T[];
+  total: number;
+  page: number;
+  limit: number;
+  totalPages: number;
+}
+
 export interface CreateConceptoDto {
   code: string;
   name: string;
@@ -29,9 +41,96 @@ export interface UpdateConceptoDto {
   isComposite?: boolean;
 }
 
-export class ConceptoService extends BaseService<Concepto> {
+export class ConceptoService {
+  private repository: Repository<Concepto>;
+
   constructor(repository: Repository<Concepto>) {
-    super(repository);
+    this.repository = repository;
+  }
+
+  async create(ctx: ServiceContext, data: Partial<Concepto>): Promise<Concepto> {
+    const entity = this.repository.create({
+      ...data,
+      tenantId: ctx.tenantId,
+      createdById: ctx.userId,
+    });
+    return this.repository.save(entity);
+  }
+
+  async findById(ctx: ServiceContext, id: string): Promise<Concepto | null> {
+    return this.repository.findOne({
+      where: { id, tenantId: ctx.tenantId, deletedAt: IsNull() } as FindOptionsWhere<Concepto>,
+    });
+  }
+
+  async findAll(
+    ctx: ServiceContext,
+    options: { page?: number; limit?: number; where?: FindOptionsWhere<Concepto> } = {}
+  ): Promise<PaginatedResult<Concepto>> {
+    const page = options.page || 1;
+    const limit = options.limit || 20;
+    const skip = (page - 1) * limit;
+
+    const where = {
+      ...options.where,
+      tenantId: ctx.tenantId,
+      deletedAt: IsNull(),
+    } as FindOptionsWhere<Concepto>;
+
+    const [data, total] = await this.repository.findAndCount({
+      where,
+      skip,
+      take: limit,
+      order: { code: 'ASC' },
+    });
+
+    return {
+      data,
+      total,
+      page,
+      limit,
+      totalPages: Math.ceil(total / limit),
+    };
+  }
+
+  async find(
+    ctx: ServiceContext,
+    options: { where?: FindOptionsWhere<Concepto>; order?: Record<string, 'ASC' | 'DESC'> } = {}
+  ): Promise<Concepto[]> {
+    return this.repository.find({
+      where: {
+        ...options.where,
+        tenantId: ctx.tenantId,
+        deletedAt: IsNull(),
+      } as FindOptionsWhere<Concepto>,
+      order: options.order,
+    });
+  }
+
+  async update(ctx: ServiceContext, id: string, data: Partial<Concepto>): Promise<Concepto | null> {
+    const entity = await this.findById(ctx, id);
+    if (!entity) return null;
+    Object.assign(entity, data);
+    return this.repository.save(entity);
+  }
+
+  async softDelete(ctx: ServiceContext, id: string): Promise<boolean> {
+    const entity = await this.findById(ctx, id);
+    if (!entity) return false;
+    entity.deletedAt = new Date();
+    await this.repository.save(entity);
+    return true;
+  }
+
+  async exists(ctx: ServiceContext, where: FindOptionsWhere<Concepto>): Promise<boolean> {
+    const count = await this.repository.count({
+      where: {
+        ...where,
+        tenantId: ctx.tenantId,
+        deletedAt: IsNull(),
+      } as FindOptionsWhere<Concepto>,
+    });
+    return count > 0;
   }
 
   /**
@@ -70,7 +169,7 @@ export class ConceptoService extends BaseService<Concepto> {
     return this.findAll(ctx, {
       page,
       limit,
-      where: { parentId: IsNull() } as any,
+      where: { parentId: IsNull() } as FindOptionsWhere<Concepto>,
     });
   }
 
@@ -82,7 +181,7 @@ export class ConceptoService extends BaseService<Concepto> {
     parentId: string
   ): Promise<Concepto[]> {
     return this.find(ctx, {
-      where: { parentId } as any,
+      where: { parentId } as FindOptionsWhere<Concepto>,
       order: { code: 'ASC' },
     });
   }
@@ -99,7 +198,7 @@ export class ConceptoService extends BaseService<Concepto> {
       : { parentId: IsNull() };
 
     const roots = await this.find(ctx, {
-      where: where as any,
+      where: where as FindOptionsWhere<Concepto>,
       order: { code: 'ASC' },
     });
 
@@ -151,7 +250,7 @@ export class ConceptoService extends BaseService<Concepto> {
    * Verificar si un código ya existe
    */
   async codeExists(ctx: ServiceContext, code: string): Promise<boolean> {
-    return this.exists(ctx, { code } as any);
+    return this.exists(ctx, { code } as FindOptionsWhere<Concepto>);
   }
 }