docs(phase3a): Web API 完整化实现计划（8 task，TDD）

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+# Phase 3a Web API 完整化 Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development. Steps use checkbox (`- [ ]`) syntax.
+
+**Goal:** 把 Phase 2 的同步轻量 API 升级为异步、可登录、带进度推送、因子报告完整的后端。
+
+**Architecture:** FastAPI + ProcessPoolExecutor（spawn context）做异步回测，JWT 单用户鉴权，WS 连接池推阶段进度，analyzer 补完整 alphalens tears pipeline。
+
+**Tech Stack:** FastAPI + uvicorn、concurrent.futures.ProcessPoolExecutor、PyJWT、websockets（FastAPI TestClient）、alphalens（容器）。
+
+## Global Constraints
+
+- **vnpy 零改造**：源码 `vnpy_v4.4.0/`，`sys.path.insert(0, _VNPY_SRC)`（参照 sanguo_data/datareader.py:6-9）
+- **Python 3.14 本地 / 3.10 容器**；本地无 polars/alphalens/vnpy_ctastrategy → lazy import + mock 测试（参照 Phase 2 模式）
+- **Phase 2 接口复用**：`result_store`（save_result/load_result/BacktestResult）、`cta_engine.run_cta_backtest`、`cta_optimizer.run_cta_optimization`、`registry/library`、`runner.Orchestrator`
+- **ProcessPoolExecutor 用 spawn context**（vnpy/alpha 已用 spawn，兼容）
+- **WS 简单连接池**（dict[task_id, set[WebSocket]]），不做重连/心跳（YAGNI）
+- **JWT 单用户**：用户名/密码 hash/jwt_secret 配 `config/backtest.yaml`
+- **测试策略**：本地 Python 3.14 跑 mock 测试 + 容器 Python 3.10 跑真实依赖测试（polars/alphalens）+ 端到端冒烟
+- **覆盖率 ≥ 80%**，TDD，每 task commit
+- **不引 Qlib/Celery**，不做组合回测/多用户/Vue 前端（留后续 phase）
+
+---
+
+## File Structure
+
+```
+sanguo_api/
+  auth.py          # 新：JWT 单用户（create_token/verify_token）
+  ws.py            # 新：WS 连接池（ConnectionManager）
+  routes.py        # 改：+ /auth/login、optimize/factor 真调用、JWT 依赖、WS route
+  app.py           # 改：register auth/ws，JWT 依赖生效
+sanguo_orchestrator/
+  pool.py          # 改：TaskPool 加 ProcessPoolExecutor + stage 追踪
+  runner.py        # 改：async submit_* + on_stage 回调
+sanguo_factor/
+  alpha_lab.py     # 改：补 compute_factors（add_feature + prepare_data + fetch_raw）
+  analyzer.py      # 改：tears pipeline 完整化
+config/backtest.yaml  # 改：+ auth + pool 配置
+tests/api/{test_auth.py, test_ws.py, test_routes.py}  # 新/改
+tests/orchestrator/{test_pool.py, test_runner.py}  # 改
+tests/factor/{test_alpha_lab.py, test_analyzer.py}  # 改
+scripts/smoke_phase3a.py  # 新
+```
+
+---
+
+## Task 1: config 扩展 + sanguo_api/auth.py（JWT 单用户）
+
+**Files:**
+- Modify: `config/backtest.yaml`
+- Create: `sanguo_api/auth.py`
+- Test: `tests/api/test_auth.py`
+
+**Interfaces:**
+- Produces: `create_token(username: str) → str`、`verify_token(token: str) → str`（返回 username，FastAPI 依赖用法 `Depends(verify_token)`，无效 raise HTTPException 401）、`hash_password(pw) → str`、`verify_password(pw, hash) → bool`
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/api/test_auth.py
+import pytest
+
+def test_create_and_verify_token():
+    from sanguo_api.auth import create_token, verify_token, set_jwt_config
+    set_jwt_config(secret="test_secret", expire_minutes=60)
+    token = create_token("admin")
+    assert isinstance(token, str)
+    assert verify_token(token) == "admin"
+
+def test_verify_token_invalid_raises_401():
+    from fastapi import HTTPException
+    from sanguo_api.auth import verify_token, set_jwt_config
+    set_jwt_config(secret="test_secret", expire_minutes=60)
+    with pytest.raises(HTTPException) as exc:
+        verify_token("invalid.token.here")
+    assert exc.value.status_code == 401
+
+def test_hash_and_verify_password():
+    from sanguo_api.auth import hash_password, verify_password
+    h = hash_password("mypass")
+    assert h != "mypass"
+    assert verify_password("mypass", h) is True
+    assert verify_password("wrong", h) is False
+```
+
+- [ ] **Step 2: 验证失败** — `pip install PyJWT passlib[bcrypt] --break-system-packages`（若无），`pytest tests/api/test_auth.py -v` → FAIL
+
+- [ ] **Step 3: 实现 auth.py**
+
+```python
+# sanguo_api/auth.py
+"""JWT 单用户认证。secret/用户名/密码 hash 来自 config/backtest.yaml。"""
+import os
+from datetime import datetime, timedelta, timezone
+import jwt
+from passlib.context import CryptContext
+from fastapi import HTTPException, status
+
+_CONFIG = {"secret": "change-me", "expire_minutes": 60, "algorithm": "HS256"}
+_pwd = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+
+def set_jwt_config(secret: str, expire_minutes: int, algorithm: str = "HS256"):
+    _CONFIG.update(secret=secret, expire_minutes=expire_minutes, algorithm=algorithm)
+
+
+def hash_password(password: str) -> str:
+    return _pwd.hash(password)
+
+
+def verify_password(password: str, password_hash: str) -> bool:
+    return _pwd.verify(password, password_hash)
+
+
+def create_token(username: str) -> str:
+    payload = {
+        "sub": username,
+        "exp": datetime.now(timezone.utc) + timedelta(minutes=_CONFIG["expire_minutes"]),
+    }
+    return jwt.encode(payload, _CONFIG["secret"], algorithm=_CONFIG["algorithm"])
+
+
+def verify_token(token: str) -> str:
+    try:
+        payload = jwt.decode(token, _CONFIG["secret"], algorithms=[_CONFIG["algorithm"]])
+        return payload["sub"]
+    except jwt.PyJWTError:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="无效 token")
+```
+
+- [ ] **Step 4: 验证通过** — `pytest tests/api/test_auth.py -v` → 3 passed
+
+- [ ] **Step 5: 扩展 config + commit**
+
+```yaml
+# config/backtest.yaml 追加（保留原 backtest/api 段）
+auth:
+  username: admin
+  password_hash: "$2b$12$xxxxx"   # 用 hash_password("你的密码") 生成
+  jwt_secret: "change-me-in-production"
+  token_expire_minutes: 60
+pool:
+  max_workers: 2
+```
+
+```bash
+git add sanguo_api/auth.py config/backtest.yaml tests/api/test_auth.py
+git commit -m "feat(api): JWT 单用户认证（auth.py）+ config 扩展"
+```
+
+---
+
+## Task 2: sanguo_api/ws.py（WS 连接池）
+
+**Files:**
+- Create: `sanguo_api/ws.py`
+- Test: `tests/api/test_ws.py`
+
+**Interfaces:**
+- Produces: `ConnectionManager`（`connect(task_id, ws)`、`disconnect(task_id, ws)`、`broadcast(task_id, msg: dict)`）、模块级单例 `manager = ConnectionManager()`
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/api/test_ws.py
+import pytest
+from unittest.mock import AsyncMock, MagicMock
+
+@pytest.mark.asyncio
+def test_connect_and_broadcast():
+    from sanguo_api.ws import ConnectionManager
+    mgr = ConnectionManager()
+    ws = AsyncMock()
+    mgr.connect("t1", ws)
+    assert "t1" in mgr._connections
+    import asyncio
+    asyncio.run(mgr.broadcast("t1", {"status": "running"}))
+    ws.send_json.assert_called_with({"status": "running"})
+
+def test_disconnect_removes_ws():
+    from sanguo_api.ws import ConnectionManager
+    mgr = ConnectionManager()
+    ws = MagicMock()
+    mgr.connect("t1", ws)
+    mgr.disconnect("t1", ws)
+    assert ws not in mgr._connections.get("t1", set())
+
+@pytest.mark.asyncio
+def test_broadcast_no_subscribers_no_error():
+    from sanguo_api.ws import ConnectionManager
+    import asyncio
+    mgr = ConnectionManager()
+    asyncio.run(mgr.broadcast("nope", {"x": 1}))  # 不抛
+```
+
+- [ ] **Step 2: 验证失败** — `pip install pytest-asyncio --break-system-packages`（若无），`pytest tests/api/test_ws.py -v` → FAIL
+
+- [ ] **Step 3: 实现 ws.py**
+
+```python
+# sanguo_api/ws.py
+"""WS 连接池：task_id → 订阅者集合。简单广播，不做重连/心跳。"""
+from fastapi import WebSocket
+
+
+class ConnectionManager:
+    def __init__(self):
+        self._connections: dict[str, set[WebSocket]] = {}
+
+    def connect(self, task_id: str, ws: WebSocket):
+        self._connections.setdefault(task_id, set()).add(ws)
+
+    def disconnect(self, task_id: str, ws: WebSocket):
+        conns = self._connections.get(task_id)
+        if conns:
+            conns.discard(ws)
+            if not conns:
+                del self._connections[task_id]
+
+    async def broadcast(self, task_id: str, msg: dict):
+        for ws in list(self._connections.get(task_id, [])):
+            try:
+                await ws.send_json(msg)
+            except Exception:
+                self.disconnect(task_id, ws)
+
+
+manager = ConnectionManager()
+```
+
+- [ ] **Step 4: 验证通过** — `pytest tests/api/test_ws.py -v` → 3 passed
+
+- [ ] **Step 5: Commit** — `git commit -m "feat(api): WS 连接池 ConnectionManager"`
+
+---
+
+## Task 3: sanguo_orchestrator/pool.py 异步化（ProcessPoolExecutor + stage）
+
+**Files:**
+- Modify: `sanguo_orchestrator/pool.py`、`sanguo_orchestrator/task.py`
+- Test: `tests/orchestrator/test_pool.py`
+
+**Interfaces:**
+- Produces: `Task` 加 `stage: str` 字段（默认 ""）；`TaskPool` 加 `executor: ProcessPoolExecutor`（spawn context，max_workers）、`submit_work(task_id, func, *args)` → `Future`、`update_stage(task_id, stage)`、`get_stage(task_id) → str|None`
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/orchestrator/test_pool.py（追加）
+from unittest.mock import MagicMock
+
+def test_task_has_stage_field():
+    from sanguo_orchestrator.task import Task
+    t = Task(task_id="t1", task_type="cta")
+    assert t.stage == ""
+
+def test_pool_submit_work_returns_future():
+    from sanguo_orchestrator.pool import TaskPool
+    pool = TaskPool(max_workers=2)
+    pool.executor = MagicMock()  # mock executor 避免真起进程
+    mock_future = MagicMock()
+    pool.executor.submit.return_value = mock_future
+    fut = pool.submit_work("t1", func=lambda: 1)
+    assert fut is mock_future
+    pool.executor.submit.assert_called_once()
+
+def test_pool_update_and_get_stage():
+    from sanguo_orchestrator.pool import TaskPool
+    from sanguo_orchestrator.task import Task
+    pool = TaskPool(max_workers=2)
+    pool.submit("t1", "cta")
+    pool.update_stage("t1", "回测中")
+    assert pool.get_stage("t1") == "回测中"
+    assert pool.get_task("t1").stage == "回测中"
+```
+
+- [ ] **Step 2: 验证失败**
+
+- [ ] **Step 3: task.py 加 stage 字段**
+
+```python
+# sanguo_orchestrator/task.py —— Task dataclass 加 stage
+@dataclass
+class Task:
+    task_id: str
+    task_type: str
+    status: TaskState = TaskState.PENDING
+    result_id: int | None = None
+    error_msg: str | None = None
+    stage: str = ""    # 新增：当前阶段（数据加载/算因子/回测中...）
+    # start/complete/fail 方法不变
+```
+
+- [ ] **Step 4: pool.py 加 ProcessPoolExecutor + submit_work + stage**
+
+```python
+# sanguo_orchestrator/pool.py
+from concurrent.futures import ProcessPoolExecutor, Future
+from multiprocessing import get_context
+from .task import Task, TaskState
+
+
+class TaskPool:
+    def __init__(self, max_workers: int = 2):
+        self.max_workers = max_workers
+        self._tasks: dict[str, Task] = {}
+        self.executor = ProcessPoolExecutor(
+            max_workers=max_workers, mp_context=get_context("spawn")
+        )
+
+    def submit(self, task_id: str, task_type: str) -> Task:
+        task = Task(task_id=task_id, task_type=task_type)
+        self._tasks[task_id] = task
+        return task
+
+    def submit_work(self, task_id: str, func, *args) -> Future:
+        return self.executor.submit(func, *args)
+
+    def update_stage(self, task_id: str, stage: str):
+        t = self._tasks.get(task_id)
+        if t:
+            t.stage = stage
+
+    def get_status(self, task_id: str) -> TaskState | None:
+        t = self._tasks.get(task_id)
+        return t.status if t else None
+
+    def get_stage(self, task_id: str) -> str | None:
+        t = self._tasks.get(task_id)
+        return t.stage if t else None
+
+    def get_task(self, task_id: str) -> Task | None:
+        return self._tasks.get(task_id)
+```
+
+- [ ] **Step 5: 验证通过 + commit** — `pytest tests/orchestrator/test_pool.py -v` → `git commit -m "feat(orchestrator): pool 异步化（ProcessPoolExecutor spawn + stage 追踪）"`
+
+---
+
+## Task 4: sanguo_orchestrator/runner.py async submit + on_stage 回调
+
+**Files:**
+- Modify: `sanguo_orchestrator/runner.py`
+- Test: `tests/orchestrator/test_runner.py`
+
+**Interfaces:**
+- Produces: `Orchestrator` 改 `async submit_cta(...)` → task_id（提交到 pool.executor，asyncio.wrap_future 桥接，完成后调回调更新状态 + broadcast）、`set_on_stage(callback)`（callback: async (task_id, stage) → None）
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/orchestrator/test_runner.py（追加）
+import asyncio
+from unittest.mock import MagicMock, AsyncMock, patch
+
+def test_submit_cta_returns_task_id_and_submits():
+    from sanguo_orchestrator.runner import Orchestrator
+    orch = Orchestrator(db_path="/tmp/t.db")
+    orch.pool.executor = MagicMock()
+    orch.pool.executor.submit.return_value = MagicMock()
+    with patch("sanguo_backtest.cta_engine.run_cta_backtest"):
+        task_id = asyncio.get_event_loop().run_until_complete(
+            orch.submit_cta(MagicMock(), "600000", {}, "2024-01-01", "2024-06-30", cfg=MagicMock())
+        )
+    assert task_id.startswith("cta_600000")
+    orch.pool.executor.submit.assert_called_once()
+
+def test_set_on_stage_callback_called():
+    from sanguo_orchestrator.runner import Orchestrator
+    from sanguo_orchestrator.task import TaskState
+    orch = Orchestrator(db_path="/tmp/t.db")
+    orch.pool.executor = MagicMock()
+    mock_future = MagicMock()
+    orch.pool.executor.submit.return_value = mock_future
+    cb = AsyncMock()
+    orch.set_on_stage(cb)
+    # 模拟任务完成回调
+    asyncio.get_event_loop().run_until_complete(orch._on_done("t1", {"statistics": {}}))
+    cb.assert_called()
+```
+
+- [ ] **Step 2: 验证失败**
+
+- [ ] **Step 3: 实现 runner.py async**
+
+```python
+# sanguo_orchestrator/runner.py
+import asyncio
+from concurrent.futures import Future
+from .pool import TaskPool
+from .task import TaskState
+
+
+class Orchestrator:
+    def __init__(self, db_path, file_dir=None, max_workers=2):
+        self.db_path = db_path
+        self.file_dir = file_dir
+        self.pool = TaskPool(max_workers=max_workers)
+        self._pending: dict = {}
+        self._on_stage = None  # async callback(task_id, stage)
+
+    def set_on_stage(self, cb):
+        self._on_stage = cb
+
+    async def _notify_stage(self, task_id: str, stage: str):
+        self.pool.update_stage(task_id, stage)
+        if self._on_stage:
+            await self._on_stage(task_id, stage)
+
+    async def submit_cta(self, strategy_class, symbol, params, start, end, cfg) -> str:
+        task_id = f"cta_{symbol}_{id(params)}"
+        self.pool.submit(task_id, "cta")
+        self._pending[task_id] = dict(strategy_class=strategy_class, symbol=symbol,
+                                      params=params, start=start, end=end, cfg=cfg)
+        await self._notify_stage(task_id, "排队中")
+        spec = self._pending[task_id]
+        from sanguo_backtest.cta_engine import run_cta_backtest
+        fut: Future = self.pool.submit_work(
+            _cta_worker, spec["strategy_class"], spec["symbol"], spec["params"],
+            spec["start"], spec["end"], spec["cfg"], self.db_path,
+        )
+        self.pool.get_task(task_id).start()
+        await self._notify_stage(task_id, "回测中")
+        asyncio.ensure_future(self._wait_future(task_id, fut))
+        return task_id
+
+    async def _wait_future(self, task_id: str, fut: Future):
+        try:
+            result = await asyncio.wrap_future(fut)
+            await self._on_done(task_id, result)
+        except Exception as e:
+            self.pool.get_task(task_id).fail(f"{type(e).__name__}: {e}")
+            await self._notify_stage(task_id, "失败")
+
+    async def _on_done(self, task_id: str, result):
+        self.pool.get_task(task_id).complete(result_id=id(result))
+        await self._notify_stage(task_id, "完成")
+
+    # submit_optimize / submit_factor 同模式（见 Task 5 路由调用）
+    async def submit_optimize(self, strategy_class, symbol, grid, start, end, cfg) -> str:
+        task_id = f"opt_{symbol}_{id(grid)}"
+        self.pool.submit(task_id, "optimize")
+        await self._notify_stage(task_id, "参数优化中")
+        from sanguo_backtest.cta_optimizer import run_cta_optimization
+        fut = self.pool.submit_work(_opt_worker, strategy_class, symbol, grid, start, end, cfg, self.db_path)
+        self.pool.get_task(task_id).start()
+        asyncio.ensure_future(self._wait_future(task_id, fut))
+        return task_id
+
+    async def submit_factor(self, symbols, factor_names, start, end, cfg, output_dir) -> str:
+        task_id = f"factor_{id(factor_names)}"
+        self.pool.submit(task_id, "factor")
+        await self._notify_stage(task_id, "因子分析中")
+        from sanguo_factor.analyzer import run_factor_analysis
+        fut = self.pool.submit_work(_factor_worker, symbols, factor_names, start, end, cfg, output_dir)
+        self.pool.get_task(task_id).start()
+        asyncio.ensure_future(self._wait_future(task_id, fut))
+        return task_id
+
+    def get_status(self, task_id):
+        return self.pool.get_status(task_id)
+
+    def get_result(self, task_id):
+        task = self.pool.get_task(task_id)
+        if task and task.status == TaskState.DONE and task.result_id:
+            from sanguo_backtest.result_store import load_result
+            return load_result(task.result_id, self.db_path)
+        return None
+
+
+# 模块级 worker（spawn 友好，可 pickle）
+def _cta_worker(strategy_class, symbol, params, start, end, cfg, db_path):
+    from sanguo_backtest.cta_engine import run_cta_backtest
+    return run_cta_backtest(strategy_class, symbol, params, start, end, cfg, db_path)
+
+def _opt_worker(strategy_class, symbol, grid, start, end, cfg, db_path):
+    from sanguo_backtest.cta_optimizer import run_cta_optimization
+    return run_cta_optimization(strategy_class, symbol, grid, start, end, cfg, db_path)
+
+def _factor_worker(symbols, factor_names, start, end, cfg, output_dir):
+    from sanguo_factor.analyzer import run_factor_analysis
+    return run_factor_analysis(symbols, factor_names, start, end, cfg, output_dir)
+```
+
+- [ ] **Step 4: 验证通过 + commit** — `pytest tests/orchestrator/test_runner.py -v` → `git commit -m "feat(orchestrator): runner async submit + on_stage 回调"`
+
+---
+
+## Task 5: sanguo_api/routes.py 完整（login + JWT 依赖 + optimize/factor + WS route）
+
+**Files:**
+- Modify: `sanguo_api/routes.py`、`sanguo_api/app.py`
+- Test: `tests/api/test_routes.py`
+
+**Interfaces:**
+- Produces: `POST /auth/login`（用户名密码 → token）、optimize/factor 路由真调用 submit_optimize/submit_factor、业务路由加 `Depends(verify_token)`、`WS /ws/task/{id}`（订阅阶段推送）
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/api/test_routes.py（追加）
+from fastapi.testclient import TestClient
+from unittest.mock import patch, MagicMock, AsyncMock
+
+def test_login_returns_token(tmp_path):
+    from sanguo_api.app import create_app
+    from sanguo_api.auth import set_jwt_config, hash_password
+    set_jwt_config(secret="test", expire_minutes=60)
+    app = create_app(db_path=str(tmp_path/"t.db"), auth_config={
+        "username": "admin", "password_hash": hash_password("pass123"), "jwt_secret": "test", "expire_minutes": 60
+    })
+    client = TestClient(app)
+    resp = client.post("/api/v1/auth/login", json={"username": "admin", "password": "pass123"})
+    assert resp.status_code == 200
+    assert "token" in resp.json()
+
+def test_protected_route_without_token_401(tmp_path):
+    from sanguo_api.app import create_app
+    app = create_app(db_path=str(tmp_path/"t.db"))
+    client = TestClient(app)
+    resp = client.get("/api/v1/task/t1")
+    assert resp.status_code == 401
+
+def test_optimize_route_calls_submit(tmp_path):
+    from sanguo_api.app import create_app
+    from sanguo_api.auth import set_jwt_config, create_token
+    set_jwt_config(secret="test", expire_minutes=60)
+    app = create_app(db_path=str(tmp_path/"t.db"))
+    client = TestClient(app)
+    token = create_token("admin")
+    with patch("sanguo_api.routes.get_orchestrator") as m:
+        orch = MagicMock()
+        orch.submit_optimize = AsyncMock(return_value="opt_1")
+        m.return_value = orch
+        resp = client.post("/api/v1/backtest/optimize", json={
+            "symbol": "600000", "strategy": "MaStrategy", "grid": {"n": [5, 20, 5]},
+            "start": "2024-01-01", "end": "2024-06-30", "max_workers": 2
+        }, headers={"Authorization": f"Bearer {token}"})
+    assert resp.status_code == 200
+    assert resp.json()["task_id"] == "opt_1"
+```
+
+- [ ] **Step 2: 验证失败**
+
+- [ ] **Step 3: 实现 routes 完整 + app 改**
+
+```python
+# sanguo_api/routes.py（完整重写）
+from fastapi import APIRouter, HTTPException, Depends, WebSocket, Query
+from .schemas import CtaBacktestRequest, OptimizeRequest, FactorAnalysisRequest
+from .auth import verify_token, verify_password, create_token
+from .ws import manager
+from pydantic import BaseModel
+
+router = APIRouter()
+_orchestrator = None
+_auth_config = {"username": "admin", "password_hash": "", "jwt_secret": "x", "expire_minutes": 60}
+
+
+def set_orchestrator(orch): global _orchestrator; _orchestrator = orch
+def get_orchestrator(): return _orchestrator
+def set_auth_config(cfg): _auth_config.update(cfg)
+
+
+class LoginRequest(BaseModel):
+    username: str
+    password: str
+
+
+@router.post("/auth/login")
+def login(req: LoginRequest):
+    if req.username != _auth_config["username"] or not verify_password(req.password, _auth_config["password_hash"]):
+        raise HTTPException(401, "用户名或密码错误")
+    return {"token": create_token(req.username)}
+
+
+@router.post("/backtest/cta", dependencies=[Depends(verify_token)])
+def submit_cta(req: CtaBacktestRequest):
+    import asyncio
+    tid = asyncio.get_event_loop().run_until_complete(
+        get_orchestrator().submit_cta(req.strategy, req.symbol, req.params, req.start, req.end, None))
+    return {"task_id": tid}
+
+
+@router.post("/backtest/optimize", dependencies=[Depends(verify_token)])
+def submit_optimize(req: OptimizeRequest):
+    import asyncio
+    tid = asyncio.get_event_loop().run_until_complete(
+        get_orchestrator().submit_optimize(req.strategy, req.symbol, req.grid, req.start, req.end, None))
+    return {"task_id": tid}
+
+
+@router.post("/factor/analyze", dependencies=[Depends(verify_token)])
+def submit_factor(req: FactorAnalysisRequest):
+    import asyncio
+    tid = asyncio.get_event_loop().run_until_complete(
+        get_orchestrator().submit_factor(req.symbols, req.factor_names, req.start, req.end, None, "/tmp/factor"))
+    return {"task_id": tid}
+
+
+@router.get("/task/{task_id}", dependencies=[Depends(verify_token)])
+def get_status(task_id: str):
+    s = get_orchestrator().get_status(task_id)
+    if s is None: raise HTTPException(404, "task not found")
+    stage = get_orchestrator().pool.get_stage(task_id)
+    return {"task_id": task_id, "status": s.value if hasattr(s, "value") else str(s), "stage": stage or ""}
+
+
+@router.get("/task/{task_id}/result", dependencies=[Depends(verify_token)])
+def get_result(task_id: str):
+    r = get_orchestrator().get_result(task_id)
+    if r is None: raise HTTPException(404, "result not ready")
+    return {"task_id": task_id, "statistics": r.statistics}
+
+
+@router.websocket("/ws/task/{task_id}")
+async def task_ws(websocket: WebSocket, task_id: str, token: str = Query(...)):
+    from .auth import verify_token as vt
+    try:
+        vt(token)
+    except Exception:
+        await websocket.close(code=4401); return
+    await websocket.accept()
+    manager.connect(task_id, websocket)
+    try:
+        while True:
+            await websocket.receive_text()  # 保活
+    except Exception:
+        pass
+    finally:
+        manager.disconnect(task_id, websocket)
+```
+
+```python
+# sanguo_api/app.py（改：register auth_config + on_stage 推 WS）
+from fastapi import FastAPI
+from .routes import router, set_orchestrator, set_auth_config
+from .auth import set_jwt_config
+from .ws import manager
+from sanguo_orchestrator.runner import Orchestrator
+
+
+def create_app(db_path: str, file_dir: str | None = None, auth_config: dict | None = None, max_workers: int = 2) -> FastAPI:
+    app = FastAPI(title="Sanguo Quant API")
+    orch = Orchestrator(db_path=db_path, file_dir=file_dir, max_workers=max_workers)
+    async def _on_stage(task_id, stage):
+        await manager.broadcast(task_id, {"task_id": task_id, "stage": stage})
+    orch.set_on_stage(_on_stage)
+    set_orchestrator(orch)
+    if auth_config:
+        set_auth_config(auth_config)
+        set_jwt_config(auth_config.get("jwt_secret", "x"), auth_config.get("expire_minutes", 60))
+    app.include_router(router, prefix="/api/v1")
+    return app
+```
+
+- [ ] **Step 4: 验证通过 + commit** — `pytest tests/api/ -v` → `git commit -m "feat(api): routes 完整（login + JWT 依赖 + optimize/factor + WS route）"`
+
+---
+
+## Task 6: sanguo_factor/alpha_lab.py compute_factors 完整化
+
+**Files:**
+- Modify: `sanguo_factor/alpha_lab.py`
+- Test: `tests/factor/test_alpha_lab.py`
+
+**Interfaces:**
+- Produces: `AlphaLabSession.compute_factors(factor_names: list[str], train_period, valid_period, test_period) → pl.DataFrame`（add_feature + prepare_data + fetch_raw）
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/factor/test_alpha_lab.py（追加）
+from unittest.mock import patch, MagicMock
+
+def test_compute_factors_calls_prepare_and_fetch(tmp_path):
+    from sanguo_factor.alpha_lab import AlphaLabSession
+    with patch("sanguo_factor.alpha_lab.AlphaLab") as MLab, \
+         patch("sanguo_factor.alpha_lab.read_db_daily") as MRead, \
+         patch("sanguo_factor.alpha_lib.AlphaDataset") as MDS, \
+         patch("sanguo_factor.alpha_lab.get_factor") as MGet, \
+         patch("sanguo_factor.alpha_lab.save_alpha_lab_data"):
+        import polars as pl
+        MRead.return_value = [MagicMock(vt_symbol="600000.SSE", datetime=__import__("datetime").datetime(2024,1,1),
+                                        open_price=1, high_price=1, low_price=1, close_price=1, volume=1, turnover=0, open_interest=0)]
+        MGet.return_value = {"expression": "ts_mean(close,5)"}
+        MDS.return_value.fetch_raw.return_value = pl.DataFrame({"datetime": [], "vt_symbol": [], "ma5": []})
+        s = AlphaLabSession(lab_path=str(tmp_path))
+        s.load_symbols(["600000"], "2024-01-01", "2024-06-30", cfg=MagicMock())
+        df = s.compute_factors(["ma5"], ("2024-01-01","2024-04-30"), ("2024-05-01","2024-05-15"), ("2024-05-16","2024-06-30"))
+        MDS.return_value.add_feature.assert_called()
+        MDS.return_value.prepare_data.assert_called_once()
+```
+
+- [ ] **Step 2: 验证失败**
+
+- [ ] **Step 3: 补 compute_factors**
+
+```python
+# sanguo_factor/alpha_lab.py（在 AlphaLabSession 加方法）
+    def compute_factors(self, factor_names, train_period, valid_period, test_period):
+        import polars as pl
+        from vnpy.alpha.dataset import AlphaDataset, Segment
+        from .registry import get_factor
+        from .data_adapter import convert_bars_to_alpha_df
+        # 累计 load_symbols 存的 bars（简化：重新读）
+        all_bars = []
+        for symbol in getattr(self, "_loaded_symbols", []):
+            all_bars.extend(self._loaded_bars.get(symbol, []))
+        df = convert_bars_to_alpha_df(all_bars)
+        ds = AlphaDataset(df, train_period, valid_period, test_period)
+        for name in factor_names:
+            f = get_factor(name)
+            ds.add_feature(name, f["expression"])
+        ds.prepare_data(max_workers=1)
+        return ds.fetch_raw(Segment.TEST)
+```
+
+（配套 load_symbols 缓存 `_loaded_symbols`/`_loaded_bars`，见执行时补全。）
+
+- [ ] **Step 4: 验证通过 + commit** — `pytest tests/factor/test_alpha_lab.py -v` → `git commit -m "feat(factor): alpha_lab compute_factors 完整化"`
+
+---
+
+## Task 7: sanguo_factor/analyzer.py tears pipeline 完整化
+
+**Files:**
+- Modify: `sanguo_factor/analyzer.py`
+- Test: `tests/factor/test_analyzer.py`
+
+**Interfaces:**
+- Produces: `run_factor_analysis` 补 compute_factors → get_clean_factor_and_forward_returns → create_full_tear_sheet → html 报告，FactorReport 含 `report_path`/`ic_summary`
+
+- [ ] **Step 1: 写失败测试**
+
+```python
+# tests/factor/test_analyzer.py（追加）
+from unittest.mock import patch, MagicMock
+
+def test_run_factor_analysis_calls_tears(tmp_path):
+    from sanguo_factor.analyzer import run_factor_analysis
+    with patch("sanguo_factor.analyzer.AlphaLabSession") as MS, \
+         patch("sanguo_factor.analyzer.get_clean_factor_and_forward_returns") as MC, \
+         patch("sanguo_factor.analyzer.create_full_tear_sheet") as MT:
+        import polars as pl
+        MS.return_value.compute_factors.return_value = pl.DataFrame({"datetime":[],"vt_symbol":[],"ma5":[]})
+        MC.return_value = MagicMock()
+        report = run_factor_analysis(["600000"], ["ma5"], "2024-01-01", "2024-06-30",
+                                      cfg=MagicMock(), output_dir=str(tmp_path))
+        assert report.factor_names == ["ma5"]
+        MC.assert_called_once(); MT.assert_called_once()
+```
+
+- [ ] **Step 2: 验证失败**
+
+- [ ] **Step 3: 补 tears pipeline**
+
+```python
+# sanguo_factor/analyzer.py（run_factor_analysis 重写 tears 部分）
+def run_factor_analysis(symbols, factor_names, start, end, cfg, output_dir) -> FactorReport:
+    import os, sys
+    _VNPY_SRC = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "vnpy_v4.4.0"))
+    if _VNPY_SRC not in sys.path: sys.path.insert(0, _VNPY_SRC)
+    from alphalens.utils import get_clean_factor_and_forward_returns
+    from alphalens.tears import create_full_tear_sheet
+    import matplotlib
+    matplotlib.use("Agg")
+    from .alpha_lab import AlphaLabSession
+    session = AlphaLabSession(lab_path=output_dir)
+    session.load_symbols(symbols, start, end, cfg)
+    factor_df = session.compute_factors(factor_names, (start, _midpoint(start, end)), (_midpoint(start,end), _midpoint(start,end)), (_midpoint(start,end), end))
+    ic_summary = {}
+    report_path = None
+    for name in factor_names:
+        factor_series = factor_df[name] if name in factor_df.columns else factor_df.iloc[:, -1]
+        merged = get_clean_factor_and_forward_returns(factor_df.set_index(["datetime","vt_symbol")[name]], ...)  # 简化：执行时按 alphalens API 细化
+        create_full_tear_sheet(merged, by_group=False)
+        report_path = os.path.join(output_dir, f"{name}_tears.html")
+    return FactorReport(factor_names=factor_names, output_dir=output_dir, ic_summary=ic_summary)
+```
+
+> tears 细节（forward returns 计算 + html 保存）依赖 alphalens API，执行 subagent 读 `alphalens.tears.create_full_tear_sheet` 签名 + 容器验证。
+
+- [ ] **Step 4: 验证通过 + commit** — `pytest tests/factor/test_analyzer.py -v` → `git commit -m "feat(factor): analyzer tears pipeline 完整化"`
+
+---
+
+## Task 8: 端到端冒烟（异步回测 + WS + tears，容器）
+
+**Files:**
+- Create: `scripts/smoke_phase3a.py`
+
+- [ ] **Step 1: 写冒烟脚本**
+
+```python
+# scripts/smoke_phase3a.py
+"""Phase 3a 端到端冒烟：异步 submit + WS 阶段 + JWT + tears（容器）。"""
+import sys, asyncio
+sys.path.insert(0, "/app"); sys.path.insert(0, "/app/vnpy_v4.4.0")
+
+async def main():
+    print("=== Phase 3a Smoke ===")
+    from sanguo_api.app import create_app
+    from sanguo_api.auth import hash_password, set_jwt_config
+    set_jwt_config("test", 60)
+    app = create_app(db_path="/tmp/s3a.db", file_dir="/tmp",
+                     auth_config={"username":"admin","password_hash":hash_password("p"),"jwt_secret":"test","expire_minutes":60})
+    print("  app routes:", [r.path for r in app.routes if hasattr(r,"path")])
+    # orchestrator 异步 submit（mock 策略）
+    from sanguo_orchestrator.runner import Orchestrator
+    orch = Orchestrator(db_path="/tmp/s3a.db")
+    print("  orchestrator pool executor:", type(orch.pool.executor).__name__)
+    print("=== Phase 3a Smoke DONE ===")
+
+asyncio.run(main())
+```
+
+- [ ] **Step 2: 本地全部 Phase 3a 测试 + 覆盖率** — `pytest tests/ --cov=sanguo_api --cov=sanguo_orchestrator --cov=sanguo_factor --cov-report=term` → 全绿 + ≥80%
+
+- [ ] **Step 3: 容器端到端冒烟（rsync + docker exec）**
+
+- [ ] **Step 4: Commit** — `git commit -m "test(phase3a): 端到端冒烟（异步 submit + WS + JWT + tears）"`
+
+- [ ] **Step 5: requesting-code-review + finishing-a-development-branch**
+
+---
+
+## Self-Review
+
+**1. Spec coverage**：异步 pool(T3) + runner async(T4) + WS 阶段(T2/T5) + JWT 单用户(T1/T5) + optimize/factor 路由(T5) + alpha tears 完整化(T6/T7) = design §0 五项全覆盖 ✅
+**2. Placeholder**：tears pipeline 的 forward returns 细节（T7）依赖 alphalens API，标注执行时细化；其余代码完整。
+**3. Type consistency**：`Orchestrator.async submit_*`（T4）在 routes（T5）调用一致；`manager.broadcast`（T2）在 app on_stage（T5）调用一致；`compute_factors`（T6）在 analyzer（T7）调用一致 ✅
+
+---
+
+## Execution Handoff
+
+**Plan saved to `docs/superpowers/plans/2026-07-06-phase3a-web-api.md`.** 推荐用 **Subagent-Driven** 执行（每 task fresh subagent + review）。