docs(api): 更新电池分页接口说明

AGENTS.md

@@ -62,8 +62,8 @@ Rules:
 - Do not add mock/fallback rows. If MySQL is unavailable, surface the error.
 - `is_low_power` is stored as a string and normalized to boolean in `src/domain/battery.ts`.
 - `power_status` is normalized to `0 | 1 | 2`.
-- Without `mac`, battery list queries return the latest record per `mac`.
-- With `mac`, battery list queries return history ordered by `create_time DESC, id DESC`, limited to 500 rows.
+- `battery.batteries` returns paginated latest records per `mac`; supported filters are `pageSize`, `cursor`, `search`, `lowPower`, `powerStatus`, and `sort`.
+- `battery.history` takes `mac` and returns history ordered by `create_time DESC, id DESC`, limited to 500 rows.
 - Dashboard may call the external prediction API when `SOH_PREDICTION_API_BASE_URL` is configured. Prediction results are cached in memory by `mac` and latest history record.
 
 ## Layout
@@ -91,6 +91,7 @@ src/
 - Current business API:
   - `battery.dashboard`
   - `battery.batteries`
+  - `battery.history`
 
 ## CLI And Deploy