feat(feedback): 补齐反馈历史审核发奖闭环

- 新增反馈审核字段和迁移，支持 pending/adopted/rejected、未采纳原因和采纳金币

- 增加用户端反馈历史 records 接口和 admin 采纳/拒绝接口

- 采纳时同事务写状态、金币流水和审计日志，拦截重复审核

- 验证：pytest tests/test_feedback.py tests/test_admin_write.py tests/test_admin_read.py

tests/test_admin_write.py

@@ -74,7 +74,7 @@ def _seed_feedback(phone: str) -> int:
     uid = _seed_user(phone)
     db = SessionLocal()
     try:
-        fb = Feedback(user_id=uid, content="测试", contact="wx", status="new")
+        fb = Feedback(user_id=uid, content="测试", contact="wx", status="pending")
         db.add(fb)
         db.commit()
         return fb.id
@@ -280,15 +280,90 @@ def test_super_admin_can_grant_coins(admin_client: TestClient, super_token: str)
     assert r.status_code == 200
 
 
-# ===== 反馈处理 =====
+# ===== 反馈审核 =====
 
-def test_handle_feedback(admin_client: TestClient, operator_token: str) -> None:
+def test_approve_feedback_grants_coins_and_audit(
+    admin_client: TestClient, operator_token: str
+) -> None:
     fid = _seed_feedback("13900000006")
-    r = admin_client.post(f"/admin/api/feedbacks/{fid}/handle", headers=_auth(operator_token))
-    assert r.status_code == 200
+    r = admin_client.post(
+        f"/admin/api/feedbacks/{fid}/approve",
+        json={"reward_coins": 800, "note": "真实详细,已采纳"},
+        headers=_auth(operator_token),
+    )
+    assert r.status_code == 200, r.text
+    assert r.json()["status"] == "adopted"
+    assert r.json()["reward_coins"] == 800
     db = SessionLocal()
     try:
-        assert db.get(Feedback, fid).status == "handled"
+        fb = db.get(Feedback, fid)
+        assert fb is not None
+        assert fb.status == "adopted"
+        assert fb.reward_coins == 800
+        assert fb.review_note == "真实详细,已采纳"
+        assert fb.reviewed_by_admin_id is not None
+        assert fb.reviewed_at is not None
+        assert db.get(CoinAccount, fb.user_id).coin_balance == 800
+        txns = db.execute(
+            select(CoinTransaction).where(
+                CoinTransaction.user_id == fb.user_id,
+                CoinTransaction.biz_type == "feedback_reward",
+                CoinTransaction.ref_id == str(fid),
+            )
+        ).scalars().all()
+        assert len(txns) == 1 and txns[0].amount == 800
+        logs = db.execute(
+            select(AdminAuditLog).where(
+                AdminAuditLog.action == "feedback.approve",
+                AdminAuditLog.target_id == str(fid),
+            )
+        ).scalars().all()
+        assert len(logs) == 1 and logs[0].detail["reward_coins"] == 800
+    finally:
+        db.close()
+
+    r = admin_client.post(
+        f"/admin/api/feedbacks/{fid}/approve",
+        json={"reward_coins": 100},
+        headers=_auth(operator_token),
+    )
+    assert r.status_code == 400
+
+
+def test_reject_feedback_records_reason_and_no_coin(
+    admin_client: TestClient, operator_token: str
+) -> None:
+    fid = _seed_feedback("13900000013")
+    r = admin_client.post(
+        f"/admin/api/feedbacks/{fid}/reject",
+        json={"reason": "暂未提供可复现信息", "note": "信息不足"},
+        headers=_auth(operator_token),
+    )
+    assert r.status_code == 200, r.text
+    assert r.json()["status"] == "rejected"
+    assert r.json()["reject_reason"] == "暂未提供可复现信息"
+    db = SessionLocal()
+    try:
+        fb = db.get(Feedback, fid)
+        assert fb is not None
+        assert fb.status == "rejected"
+        assert fb.reject_reason == "暂未提供可复现信息"
+        assert fb.review_note == "信息不足"
+        txns = db.execute(
+            select(CoinTransaction).where(
+                CoinTransaction.user_id == fb.user_id,
+                CoinTransaction.biz_type == "feedback_reward",
+                CoinTransaction.ref_id == str(fid),
+            )
+        ).scalars().all()
+        assert txns == []
+        logs = db.execute(
+            select(AdminAuditLog).where(
+                AdminAuditLog.action == "feedback.reject",
+                AdminAuditLog.target_id == str(fid),
+            )
+        ).scalars().all()
+        assert len(logs) == 1 and logs[0].detail["reason"] == "暂未提供可复现信息"
     finally:
         db.close()