fix(admin): 按任务白名单聚合常规任务金币 (#157)

## 背景

大盘“常规任务金币”原先采用“全部正向金币减排除清单”的反向口径。线上新增 `feed_ad_reward_coupon` / `feed_ad_reward_comparison` 后未同步加入排除清单，导致领券和比价奖励误计入常规任务金币。

## 修改

- 改为明确白名单：`signin`、历史 `signin_boost`、全部 `task_` 任务、`price_report_reward`、`feedback_reward`
- 未知新 `biz_type` 默认不进入常规任务桶
- 增加覆盖领券、比价、广告、邀请、管理员及未知类型的回归测试
- 顺带修复改动文件已有的 Ruff `UP017`

## 验证

- 线上只读 PostgreSQL：新口径全量为 108,022，领券/比价误计差额为 450,675
- Ruff：通过
- `pytest tests/test_admin_read.py tests/test_cps_admin.py -q`：23 passed

---------

Co-authored-by: unknown <798648091@qq.com>
Reviewed-on: #157
Co-authored-by: linkeyu <linkeyu@wonderable.ai>
Co-committed-by: linkeyu <linkeyu@wonderable.ai>

tests/test_admin_read.py

@@ -455,3 +455,62 @@ def test_period_coupon_reward_excludes_reward_video(
     coins = r.json()["period"]["coins"]
     assert coins["coupon_reward_coin_total"] == 0        # 激励视频不计入领券奖励
     assert coins["reward_video_coin_total"] == 50        # 仍计入激励视频卡
+
+
+def test_period_regular_task_coin_uses_explicit_allowlist(
+    admin_client: TestClient, admin_token: str
+) -> None:
+    """常规任务金币只加明确任务来源，领券/比价及未知新类型不得自动混入。"""
+    from datetime import datetime
+
+    from app.models.wallet import CoinTransaction
+
+    d = "2021-06-18"
+    included = {
+        "signin": 100,
+        "signin_boost": 200,
+        "task_enable_notification": 300,
+        "task_other": 400,
+        "price_report_reward": 500,
+        "feedback_reward": 600,
+    }
+    excluded = {
+        "feed_ad_reward_coupon": 700,
+        "feed_ad_reward_comparison": 800,
+        "feed_ad_reward": 900,
+        "reward_video": 1000,
+        "admin_grant": 1100,
+        "invite_inviter": 1200,
+        "future_unknown_reward": 1300,
+    }
+    db = SessionLocal()
+    try:
+        uid = user_repo.upsert_user_for_login(
+            db, phone="13800008804", register_channel="sms"
+        ).id
+        balance = 0
+        rows = []
+        for index, (biz_type, amount) in enumerate((included | excluded).items(), start=1):
+            balance += amount
+            rows.append(CoinTransaction(
+                user_id=uid,
+                amount=amount,
+                balance_after=balance,
+                biz_type=biz_type,
+                ref_id=f"regular-task-{index}",
+                created_at=datetime(2021, 6, 18, 12, 0, index),
+            ))
+        db.add_all(rows)
+        db.commit()
+    finally:
+        db.close()
+
+    response = admin_client.get(
+        "/admin/api/stats/overview",
+        params={"date_from": d, "date_to": d},
+        headers=_auth(admin_token),
+    )
+    assert response.status_code == 200, response.text
+    coins = response.json()["period"]["coins"]
+    assert coins["regular_task_coin_total"] == sum(included.values())
+    assert coins["task_coin_total"] == 700