feat(coin): 金币数值体系一期 — 签到加成 + 信息流广告结算

签到加成(boost):
- 新增 signin_boost_record 表(user+date 唯一)+ POST /api/v1/signin/boost
- signin 状态/结算逻辑调整

信息流广告结算:
- 新增 ad_feed_reward_record 表(client_event_id 幂等)+ POST /api/v1/ad/feed-reward
- ad_feed_reward 模型/repo、ad schema、按 ecpm/时长结算金币

金币数值:core/rewards.py 数值调整、config_schema/admin config 适配
迁移 coin_reward_phase1(down_revision pstat3growth);测试 + API/DB 文档同步

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

app/api/v1/ad.py

@@ -20,12 +20,15 @@ from app.core.config import settings
 from app.integrations import pangle
 from app.core.ratelimit import rate_limit
 from app.repositories import ad_ecpm as crud_ecpm
+from app.repositories import ad_feed_reward as crud_feed
 from app.repositories import ad_reward as crud_ad
 from app.repositories import ad_watch as crud_watch
 from app.schemas.ad import (
     AdRewardStatusOut,
     EcpmReportIn,
     EcpmReportOut,
+    FeedRewardIn,
+    FeedRewardOut,
     PangleCallbackOut,
     TestGrantOut,
     WatchReportIn,
@@ -112,15 +115,15 @@ def reward_status(user: CurrentUser, db: DbSession) -> AdRewardStatusOut:
 @router.post(
     "/watch-report",
     response_model=WatchReportOut,
-    summary="上报激励视频观看时长(每日 50 分钟防刷计时)",
+    summary="上报激励视频观看时长(旧客户端兼容字段)",
     dependencies=[Depends(rate_limit(120, 60, "ad-watch-report"))],
 )
 def watch_report(payload: WatchReportIn, user: CurrentUser, db: DbSession) -> WatchReportOut:
     """客户端在激励视频关闭(onAdClose)后上报本次实际观看秒数,服务端累计到当日总时长。
 
     Bearer 鉴权,user_id 取自 JWT(不信 body)。seconds 服务端夹 [0, MAX_SINGLE_WATCH_SECONDS]。
-    当日累计达 DAILY_AD_WATCH_SECONDS_LIMIT(50 分钟)后:① 本接口 / reward-status 返回 remaining=0,
-    客户端不再展示广告;② 后端发奖(S2S 回调)也会因时长闸记 capped 不发金币(双闸,前端绕不过)。
+    当前产品只保留每日 500 次上限,DAILY_AD_WATCH_SECONDS_LIMIT=0 表示时长闸不启用;该接口
+    仍保留用于旧客户端兼容和排查观看时长。
     """
     total = crud_watch.add_watch_seconds(db, user.id, payload.seconds)
     limit = rewards.DAILY_AD_WATCH_SECONDS_LIMIT
@@ -198,3 +201,36 @@ def test_grant(user: CurrentUser, db: DbSession) -> TestGrantOut:
         round_count=round_count,
         cooldown_until=cooldown_until,
     )
+
+
+@router.post(
+    "/feed-reward",
+    response_model=FeedRewardOut,
+    summary="信息流广告完成后结算金币",
+    dependencies=[Depends(rate_limit(120, 60, "ad-feed-reward"))],
+)
+def feed_reward(payload: FeedRewardIn, user: CurrentUser, db: DbSession) -> FeedRewardOut:
+    """点位 2:信息流广告每展示满 10 秒累计一份奖励,视频完成后一次性入账。
+
+    当前一期由客户端完成回调携带 eCPM / 展示秒数上报;client_event_id 做幂等键,避免重试重复发。
+    """
+    rec = crud_feed.grant_feed_reward(
+        db,
+        user.id,
+        client_event_id=payload.client_event_id,
+        ecpm=payload.ecpm,
+        duration_seconds=payload.duration_seconds,
+        adn=payload.adn,
+        slot_id=payload.slot_id,
+    )
+    logger.info(
+        "feed ad reward user_id=%d event=%s status=%s units=%d coin=%d",
+        user.id, rec.client_event_id, rec.status, rec.unit_count, rec.coin,
+    )
+    return FeedRewardOut(
+        granted=(rec.status == "granted"),
+        status=rec.status,
+        coin=rec.coin,
+        unit_count=rec.unit_count,
+        daily_limit=rewards.get_ad_daily_limit(db),
+    )

app/api/v1/signin.py

@@ -1,8 +1,9 @@
 """签到 endpoint。
 
 路由前缀 `/api/v1/signin`:
-  GET  /status    今日签到状态 + 7 天档位
+  GET  /status    今日签到状态 + 14 天档位
   POST /          执行今日签到
+  POST /boost     签到后看广告膨胀金币
 """
 from __future__ import annotations
 
@@ -12,7 +13,12 @@ from fastapi import APIRouter, HTTPException, status
 
 from app.api.deps import CurrentUser, DbSession
 from app.repositories import signin as crud_signin
-from app.schemas.welfare import SigninResultOut, SigninStatusOut
+from app.schemas.welfare import (
+    SigninBoostRequest,
+    SigninBoostResultOut,
+    SigninResultOut,
+    SigninStatusOut,
+)
 
 logger = logging.getLogger("shagua.signin")
 
@@ -42,3 +48,27 @@ def do_signin(user: CurrentUser, db: DbSession) -> SigninResultOut:
         streak=record.streak,
         coin_balance=balance,
     )
+
+
+@router.post("/boost", response_model=SigninBoostResultOut, summary="签到后看广告膨胀金币")
+def boost_signin(
+    payload: SigninBoostRequest, user: CurrentUser, db: DbSession
+) -> SigninBoostResultOut:
+    try:
+        record, balance = crud_signin.boost_today_signin(
+            db, user.id, ad_ref_id=payload.ad_ref_id
+        )
+    except crud_signin.NotSignedTodayError as e:
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="not signed today") from e
+    except crud_signin.AlreadyBoostedError as e:
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT, detail="already boosted today") from e
+
+    logger.info(
+        "signin boost ok user_id=%d date=%s coin=%d",
+        user.id, record.signin_date, record.coin_awarded,
+    )
+    return SigninBoostResultOut(
+        coin_awarded=record.coin_awarded,
+        coin_balance=balance,
+        signin_date=record.signin_date.isoformat(),
+    )