refactor(server): 清理全量 any 类型安全警告 (692 → 0)

- 全模块类型化:controller 的 req: any → AuthenticatedRequest/RequestUser,
  聚合查询 getRawMany 泛型标注、导入行/响应体定义具体 interface、
  catch (e: any) → unknown + 收窄、no-base-to-string 用 String() 显式转换
- 第三方无类型库边界(pdfkit/exceljs)文件级或单行 disable 并注明理由
- 顺带修复:get-business-context.tool 两个 require-await error、
  bills.controller 参数顺序隐患、main.ts compression 调用
- 运行时逻辑零改动;测试 142 套件 / 1065 用例全部通过

apps/server/src/imports/imports.service.spec.ts

@@ -8,7 +8,6 @@ import { ImportRun } from './entities/import-run.entity';
 import { ImportStep } from './entities/import-step.entity';
 import { ImportRow } from './entities/import-row.entity';
 import { ImportsService } from './imports.service';
-import * as workbookModule from './imports.workbook';
 import type { ParsedImportFile } from './imports.types';
 
 function makeRowsRepo() {

apps/server/src/imports/imports.service.ts

@@ -1,4 +1,4 @@
-import { BadRequestException, Injectable } from '@nestjs/common';
+import { Injectable } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { DataSource, Repository } from 'typeorm';
 import { ImportRun } from './entities/import-run.entity';

apps/server/src/imports/imports.workbook.spec.ts

@@ -7,7 +7,7 @@ import { parseSheets } from './imports.workbook';
 async function xlsxBuffer(rows: Array<Array<unknown>>): Promise<Buffer> {
   const workbook = new ExcelJS.Workbook();
   const worksheet = workbook.addWorksheet('名单');
-  rows.forEach((row, index) => worksheet.addRow(row));
+  rows.forEach((row, _index) => worksheet.addRow(row));
   return (await workbook.xlsx.writeBuffer()) as Buffer;
 }