fix(plugin-auth): 测试层的冗余 object 键跟进 DriverQuery，台账不抬 (#6075)

check:type-check-debt 的全仓 re-measure 报 plugin-auth 从 131 涨到 132
(+1)。plugin-auth 的 tsconfig 把 **/*.test.ts 排除在外，所以 per-package
`pnpm typecheck` 看不见它，只有把排除掀掉的全仓 re-measure 量得到。

定位到的就是一处：

  src/auth-where-operator-coverage.test.ts(383,7): error TS2353:
    Object literal may only specify known properties, and 'object'
    does not exist in type 'DriverQuery'.

`driver.find('sys_user', { object: 'sys_user', fields: ['id'] } satisfies
QueryAST)` —— 删掉的值与第一个实参逐字相同，属重拼类。承载类型按第三类
处置改为 `satisfies DriverQuery`：该处上方注释明确写了「这里不能用 as any，
否则会被 check:query-options-erasure (#4674/#4918) 记一笔」，所以保留
satisfies、只换目标类型，正是它原本的意图。

⛔ 未抬台账数字：门禁原话「the ledger is a ratchet and may only shrink」
(#5278)，本单是自己引入的 +1，属可约。改完复测回到 131，与台账记录一致。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WyvqvKMG6asi9aXjKE6xtx

Author: claude

packages/plugins/plugin-auth/src/auth-where-operator-coverage.test.ts

@@ -73,6 +73,7 @@ import { assertEngineDeleteDispatch } from '@objectstack/objectql';
 import { whereOperators } from '@better-auth/core/db/adapter';
 import { FILTER_OPERATORS } from '@objectstack/spec/data';
 import type { QueryAST } from '@objectstack/spec/data';
+import type { DriverQuery } from '@objectstack/spec/contracts';
 import type { IDataEngine } from '@objectstack/core';
 import {
   createObjectQLAdapterFactory,
@@ -380,9 +381,8 @@ describe('[#5813] the predicates really filter on a real backend', () => {
     // would be counted by `check:query-options-erasure` (#4674/#4918), and
     // nothing about this read is off-contract.
     const left = await driver.find('sys_user', {
-      object: 'sys_user',
       fields: ['id'],
-    } satisfies QueryAST);
+    } satisfies DriverQuery);
     expect(left.map((r: any) => r.id).sort()).toEqual(['u_abc1', 'u_abcz', 'u_xabc']);
   });
 });