feat(billing): 任务换额度定稿闭环——claim 凭据校验（40311）+ 定稿 4 任务目录

- claim_task_bonus 在幂等快捷路径前做完成凭据校验：report_feedback 查当日 rp_feedback、first_report 查 succeeded rp_report，无凭据 40311 且不打流水；sign_in/share_report 不校验（产品决策：签到行为即领取，分享内测期接受端侧自报，hard_cap 锁死刷量收益）
- task_bonus_rules 默认值与 .env.example 同步产品定稿（产品方案 §3.2，2026-09-11）：sign_in 对话+10/day、report_feedback 发型+2/day、share_report 换装+3/day、first_report 重生成+1/lifetime；下架 invite_friend/profile_complete
- billing/repo 新增只读凭据探测 has_feedback_between/has_completed_report（import-linter 禁 billing→report，直查 shared.models 的 rp_* 表，永远只读）
- 测试：test_task_bonus_eligibility 5 用例（40311 两分支/凭据后 200/40910/40410/零流水）

偏差说明：test_task_bonus 与 test_task_bonus_rules 断言数值随定稿更新（发放/幂等/封顶语义未动）；quota.py docstring「占位值」说法顺手更正。

tests/integration/test_task_bonus.py

@@ -86,15 +86,15 @@ async def test_claim_grants_immediately_and_repeats_are_rejected(client: Any) ->
     assert body["data"] == {
         "task_key": "sign_in",
         "quota_key": "agent_chat",
-        "amount": 1,  # 占位值；正式数值由产品定稿后改 TASK_BONUS_RULES_JSON
-        "bonus_granted": 1,
-        "remaining": 11,  # base_limit 10 + bonus 1 - used 0
+        "amount": 10,  # §3.2 定稿值（T2b）；改 TASK_BONUS_RULES_JSON 即生效
+        "bonus_granted": 10,
+        "remaining": 20,  # base_limit 10 + bonus 10 - used 0
     }
 
     # 发放即到账：额度视图立刻可见。
     view = await _quota_view(client, headers, "agent_chat")
-    assert view["bonus_granted"] == 1
-    assert view["remaining"] == 11
+    assert view["bonus_granted"] == 10
+    assert view["remaining"] == 20
 
     # 同一任务同一周期重复 claim → 40910（FR-BILL-03 发放幂等）。
     again = await client.post("/api/v1/quota/tasks/sign_in/claim", headers=headers)
@@ -108,43 +108,67 @@ async def test_claim_grants_immediately_and_repeats_are_rejected(client: Any) ->
     assert rows[0].status == "committed"
     assert rows[0].reason == "sign_in"
     assert rows[0].ref_type == "task_bonus"
-    assert rows[0].balance_after == 10 + 1
+    assert rows[0].balance_after == 10 + 10
     assert rows[0].idempotency_key.startswith(f"grant:{user_id}:sign_in:")
 
     # 幂等拒绝不改变账面。
     view = await _quota_view(client, headers, "agent_chat")
-    assert view["bonus_granted"] == 1
+    assert view["bonus_granted"] == 10
 
 
-async def test_all_five_frbill03_tasks_land_on_their_quotas(client: Any) -> None:
+async def test_final_catalog_tasks_land_on_their_quotas(client: Any) -> None:
     headers, user_id = await _login(client)
 
+    # T2b 起 report_feedback 需当日 rp_feedback 凭据、first_report 需已完成
+    # rp_report 凭据（否则 40311）：先落齐两行。本用例聚焦「各任务落到各自
+    # 配额」的发放语义，不覆盖凭据闸门（见 test_task_bonus_eligibility.py）。
+    from packages.domain.ids import next_id
+    from packages.shared.db import session_scope
+    from packages.shared.models import RpFeedback, RpReport
+
+    async with session_scope() as session:
+        report_id = next_id()
+        session.add(RpReport(report_id=report_id, user_id=user_id, status="succeeded"))
+        session.add(
+            RpFeedback(
+                feedback_id=next_id(),
+                report_id=report_id,
+                user_id=user_id,
+                dimension_key="overall",
+                verdict="accurate",
+            )
+        )
+
+    # §3.2 定稿目录（T2b）：invite_friend/profile_complete 已下架，不在 env。
     all_tasks = (
         "sign_in",
-        "profile_complete",
         "report_feedback",
         "share_report",
-        "invite_friend",
+        "first_report",
     )
     for task_key in all_tasks:
         resp = await client.post(f"/api/v1/quota/tasks/{task_key}/claim", headers=headers)
         assert resp.status_code == 200, task_key
         assert resp.json()["code"] == 0, task_key
 
-    # agent_chat 吃两个任务（sign_in + profile_complete）；tryon 吃两个；report_regen 一个。
+    # 定稿数值：sign_in→agent_chat+10、report_feedback→hairstyle+2、
+    # share_report→tryon+3、first_report→report_regen+1，各自落各自配额。
     chat = await _quota_view(client, headers, "agent_chat")
-    assert chat["bonus_granted"] == 2
-    assert chat["remaining"] == 12
+    assert chat["bonus_granted"] == 10
+    assert chat["remaining"] == 20
+    hairstyle = await _quota_view(client, headers, "hairstyle")
+    assert hairstyle["bonus_granted"] == 2
+    assert hairstyle["remaining"] == 5  # base 3 + bonus 2（task_bonus_max=2 触顶即止）
     tryon = await _quota_view(client, headers, "tryon")
-    assert tryon["bonus_granted"] == 2
-    assert tryon["remaining"] == 5  # base 3 + bonus 2（task_bonus_max=3 未触顶）
+    assert tryon["bonus_granted"] == 3
+    assert tryon["remaining"] == 6  # base 3 + bonus 3（task_bonus_max=3 未触顶）
     regen = await _quota_view(client, headers, "report_regen")
     assert regen["bonus_granted"] == 1
     assert regen["remaining"] == 2
 
     rows = await _system_grant_rows(user_id)
-    assert len(rows) == 5
-    assert len({row.idempotency_key for row in rows}) == 5
+    assert len(rows) == 4
+    assert len({row.idempotency_key for row in rows}) == 4
 
 
 async def test_unknown_task_returns_40410(client: Any) -> None: