feat(§T): 账户看板 + 场内模拟交易 9 端点（用户自助首版）
新增 §T 用户自助段（docs/05 §19 新号段 7 个 = A×40/C×7/K×4/M×4/O×3/R×4/T×9）： - T001 GET /api/v1/users/me/account/dashboard — 账户/资金/持仓/盈亏汇总 - T002 POST /api/v1/users/me/orders — 委托提交（首版 market 立即全额成交） - T003 / T004 / T005 委托列表/详情/撤单 - T006 GET /api/v1/users/me/holdings — 持仓列表（含市值/盈亏/当日盈亏） - T007 / T008 成交记录列表/详情 - T009 GET /api/v1/users/me/cash-ledger — 资金账本 要点（与 docs/00 §6.6 一致）： - 首版市价委托立即全额成交，不实现撮合队列/部分成交；T005 撤单首版对任何在场委托返回 ORDER_NOT_CANCELLABLE (409) - 价格来源复用 base FundQuoteService；service 层不二次封装（满足 AGENTS 第 2 条） - 首版风控 3 条硬性：产品可交易、客户适当性、持仓比例上限（fin_market_price 缺失或过期 → 拒绝买入） - 数据库零修改：10 张 fin_* 表全部 docs/00 既定，本批 PR 改列类型与可空性均 0；底座实际偏差（id 无 AUTO_INCREMENT、所谓'生成列'是普通 NOT NULL）由 service _next_id / 业务派生值补偿 注册 API：9 端点均注册进 app.main；user=9001(cust)'s id 写账 权限码（tools/seed_test_rbac.py 同步登记 + CUSTOMER 全量）： 9047 account:read:self 9048 trade:order:create 9049 trade:order:read 9050 trade:order:cancel 9051 holding:read:self 9052 trade:txn:read 错误码（app/core/errors.py + docs/05 §3.6 + tests/unit/core/test_errors.py DOCUMENTED 三方同步）： 404 ACCOUNT_NOT_FOUND / ORDER_NOT_FOUND 409 ORDER_NOT_CANCELLABLE 422 INSUFFICIENT_FUNDS / INSUFFICIENT_HOLDING / HOLDING_RATIO_EXCEEDED / SUITABILITY_MISMATCH / PRODUCT_NOT_TRADABLE 503 FUND_QUOTE_UNAVAILABLE（可重试） 新增：app/api/controllers/trading.py / app/api/schemas/trading.py / app/service/trade_service.py / tools/seed_sim_account_demo.py / tests/unit/service/test_trade_service.py(unit×8) / tests/contract/test_trading_endpoint_contract.py(contract×11) 修改：app/main.py(挂载 controller) / app/core/errors.py(10 新异常类) / tools/seed_test_rbac.py / docs/05-接口文档.md(§19 T001-T009 + §3.6 9 新码) / tests/unit/core/test_errors.py(DOCUMENTED 同步) 门禁：pytest tests/unit tests/contract 1313 passed (+19 新增) / ruff all clean / 三道守卫全过
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张胜宇
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"""§T 用户自助场内基金模拟交易 controller（`docs/05` §19 T 段）。
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端点与权限码（9 个端点 / 5 个权限码）：
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| § | 端点 | 权限码 | 摘要 |
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|---|---|---|---|
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| T001 | `GET /api/v1/users/me/account/dashboard` | `account:read:self` | 我的账户看板 |
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| T002 | `POST /api/v1/users/me/orders` | `trade:order:create` | 提交委托（首版市价立即成交） |
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| T003 | `GET /api/v1/users/me/orders` | `trade:order:read` | 委托列表 |
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| T004 | `GET /api/v1/users/me/orders/{order_no}` | `trade:order:read` | 委托详情 |
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| T005 | `POST /api/v1/users/me/orders/{order_no}/cancellations` | `trade:order:cancel` | 撤单 |
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| T006 | `GET /api/v1/users/me/holdings` | `holding:read:self` | 持仓列表 |
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| T007 | `GET /api/v1/users/me/transactions` | `trade:txn:read` | 成交记录列表 |
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| T008 | `GET /api/v1/users/me/transactions/{txn_no}` | `trade:txn:read` | 成交详情 |
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| T009 | `GET /api/v1/users/me/cash-ledger` | `account:read:self` | 资金明细 |
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设计要点：
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- 全部走 `build_request_context`（与 memory / portfolio 一致），数据范围 `self`。
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- 不走限流依赖（`enforce_rate_limit`）——场内交易为低频，由底座网关层限流。
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- 信封用 `envelope` / `list_envelope`，与 §3.3 一致。
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"""
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from __future__ import annotations
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from fastapi import APIRouter, Depends, Query, status
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.api.dependencies.auth import build_request_context
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from app.api.dependencies.database import get_session
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from app.api.schemas.trading import OrderCreateRequest
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from app.api.views.envelope import envelope, list_envelope
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from app.core.contracts import RequestContext
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from app.service.trade_service import TradeService
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router = APIRouter(prefix="/api/v1/users/me", tags=["trading"])
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def _service(session: AsyncSession, context: RequestContext) -> TradeService:
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return TradeService(session)
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# T001 账户看板
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@router.get("/account/dashboard")
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async def get_account_dashboard(
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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data = await _service(session, context).get_account_dashboard(context)
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return envelope(data, context)
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# T002 提交委托（市价立即成交）
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@router.post("/orders", status_code=status.HTTP_201_CREATED)
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async def submit_order(
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payload: OrderCreateRequest,
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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data = await _service(session, context).submit_order(payload, context)
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return envelope(data, context)
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# T003 委托列表
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@router.get("/orders")
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async def list_orders(
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limit: int = Query(default=20, ge=1, le=100),
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cursor: str | None = Query(default=None),
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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cursor_id = int(cursor) if cursor else None
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items, next_cursor = await _service(session, context).list_orders(
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context, limit=limit, cursor=cursor_id
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)
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return list_envelope(
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{"items": items, "next_cursor": next_cursor, "has_more": next_cursor is not None},
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context,
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)
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# T004 委托详情
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@router.get("/orders/{order_no}")
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async def get_order(
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order_no: str,
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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data = await _service(session, context).get_order(order_no, context)
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return envelope(data, context)
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# T005 撤单
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@router.post("/orders/{order_no}/cancellations", status_code=status.HTTP_200_OK)
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async def cancel_order(
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order_no: str,
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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order = await _service(session, context).cancel_order(order_no, context)
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return envelope(order, context)
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# T006 持仓列表
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@router.get("/holdings")
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async def list_holdings(
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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data = await _service(session, context).list_holdings(context)
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return envelope(data, context)
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# T007 成交记录列表
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@router.get("/transactions")
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async def list_transactions(
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limit: int = Query(default=20, ge=1, le=100),
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cursor: str | None = Query(default=None),
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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cursor_id = int(cursor) if cursor else None
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data = await _service(session, context).list_transactions(
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context, limit=limit, cursor=cursor_id
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)
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return envelope(data, context)
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# T008 成交详情
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@router.get("/transactions/{txn_no}")
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async def get_transaction(
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txn_no: str,
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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item = await _service(session, context).get_transaction(txn_no, context)
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return envelope(item, context)
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# T009 资金明细
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@router.get("/cash-ledger")
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async def list_cash_ledger(
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limit: int = Query(default=20, ge=1, le=100),
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cursor: str | None = Query(default=None),
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context: RequestContext = Depends(build_request_context), # noqa: B008
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session: AsyncSession = Depends(get_session), # noqa: B008
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) -> dict[str, object]:
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cursor_id = int(cursor) if cursor else None
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data = await _service(session, context).list_cash_ledger(
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context, limit=limit, cursor=cursor_id
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)
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return envelope(data, context)
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