feat(ad): 记录不发金币的原因(closed_early / too_short)

让广告收益报表能呈现「有展示、没发金币」的原因:
- grant_feed_reward 改整场结算:aborted→closed_early、整场总时长<10s→too_short(均 coin=0)
- 新增 record_reward_noshow + POST /api/v1/ad/reward-noshow(激励视频提前关留痕;
  同 ad_session_id 已 granted 则跳过,防与 S2S 发奖重复)
- feed-reward 加 aborted 入参
- 文档:feed-reward / 两张表 status 取值、新增 ad-reward-noshow、README 索引
- alembic: 合并 ad_revenue_report_cols 与 store_mapping_tb_dl_invalid 双 head(空迁移)

报表复算无需改(非 granted 状态走 else 分支 expected=0 自动归类)。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/api/v1/ad.py

@@ -32,6 +32,8 @@ from app.schemas.ad import (
     FeedRewardIn,
     FeedRewardOut,
     PangleCallbackOut,
+    RewardNoShowIn,
+    RewardNoShowOut,
     TestGrantIn,
     TestGrantOut,
     WatchReportIn,
@@ -363,6 +365,7 @@ def feed_reward(payload: FeedRewardIn, user: CurrentUser, db: DbSession) -> Feed
         slot_id=payload.slot_id,
         app_env=payload.app_env,
         our_code_id=payload.our_code_id,
+        aborted=payload.aborted,
     )
     logger.info(
         "feed ad reward user_id=%d event=%s status=%s units=%d coin=%d",
@@ -375,3 +378,30 @@ def feed_reward(payload: FeedRewardIn, user: CurrentUser, db: DbSession) -> Feed
         unit_count=rec.unit_count,
         daily_limit=rewards.get_ad_daily_limit(db),
     )
+
+
+@router.post(
+    "/reward-noshow",
+    response_model=RewardNoShowOut,
+    summary="激励视频提前关闭/未发奖留痕",
+    dependencies=[Depends(rate_limit(120, 60, "ad-reward-noshow"))],
+)
+def reward_noshow(payload: RewardNoShowIn, user: CurrentUser, db: DbSession) -> RewardNoShowOut:
+    """激励视频展示了但用户提前关/跳过、未触发 S2S 发奖时,客户端 best-effort 上报一条留痕,
+    让广告收益报表能呈现「有展示、没发金币」的原因。不发金币;同一 session 已发奖则跳过。
+    """
+    rec = crud_ad.record_reward_noshow(
+        db,
+        user.id,
+        ad_session_id=payload.ad_session_id,
+        ecpm=payload.ecpm,
+        adn=payload.adn,
+        slot_id=payload.slot_id,
+        app_env=payload.app_env,
+        our_code_id=payload.our_code_id,
+    )
+    logger.info(
+        "ad reward noshow user_id=%d session=%s watched=%ds -> status=%s",
+        user.id, payload.ad_session_id, payload.watched_seconds, rec.status,
+    )
+    return RewardNoShowOut(ok=True, status=rec.status)