# Phase 1：引擎合并与租户化 实施计划

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** 把 ai-kefu-jc（主线）+ ai-kefu（吸收零散改进）合并为租户感知的引擎包 `app/engine/`，配 TenantRuntime/Registry 与出厂配置加载，全部既有机制测试保持绿。

**Architecture:** 引擎代码整体从 jc 搬入 `app/engine/`（保持文件结构），所有"进程级全局"（提示词、词表、Settings、DB engine）改为经 TenantRuntime 注入；词表/提示词外置为 seed_profiles 数据；Host 中间件解析租户。本阶段配置来源是**文件**（seed_profiles/*/tenant.json），Phase 2 换成 platform.db——Registry 接口不变。

**Tech Stack:** Python 3.13 / FastAPI / SQLAlchemy 2.0 async + aiosqlite / httpx（推送异步化）/ pytest。源项目：`D:\refactor\ai-kefu-jc`（主线）、`D:\refactor\ai-kefu`（吸收）。

**参照 spec:** `docs/superpowers/specs/2026-10-12-unified-kefu-platform-design.md` §6（引擎改造与合并）。

**关键策略——等价回归：** jc 的 320 项测试就是重构安全网。手法：boundary_filter 等模块的函数**保留模块级默认值**（= 内嵌的 jiancai 出厂词表），租户覆盖时显式传参。这样既有测试零修改通过，多租户能力由新测试覆盖。

---

### Task 1: 仓库骨架与工具链

**Files:**
- Create: `.gitignore`、`requirements.txt`、`requirements-dev.txt`、`pytest.ini`、`CLAUDE.md`、`README.md`

- [ ] **Step 1: 写 .gitignore（spec §6.4：运行期产物绝不进 git）**

```gitignore
__pycache__/
*.pyc
.pytest_cache/
.ruff_cache/
.env
tenants/*.db
tenants/*.db-wal
tenants/*.db-shm
platform.db
platform.db-wal
platform.db-shm
data/uploads/
admin/node_modules/
admin/dist/
.playwright-mcp/
```

- [ ] **Step 2: 写 requirements.txt（基于 jc，去 Redis 相关，加 httpx）**

从 `D:\refactor\ai-kefu-jc\requirements.txt` 复制，删除 redis 相关行（如有），追加 `httpx>=0.27`。核心依赖应为：fastapi、uvicorn、sqlalchemy、aiosqlite、pydantic-settings、zhipuai、aiosmtplib、iptocc、phonenumberslite、httpx。

- [ ] **Step 3: 写 requirements-dev.txt**

```
pytest
pytest-asyncio
```

- [ ] **Step 4: 写 pytest.ini**

```ini
[pytest]
asyncio_mode = auto
testpaths = tests
```

- [ ] **Step 5: 写 CLAUDE.md（新仓工作约定）**

内容要点（从 jc 的 CLAUDE.md 继承教训）：本项目是统一多租户平台；`--workers 1` 是硬约束；Windows 上脚本跑 `PYTHONUTF8=1`；改 seed_profiles 后跑全量 pytest；部署坑手册见 docs/deploy-production.md（Phase 4 写）。

- [ ] **Step 6: 写 README.md 占位**（一段项目说明 + spec 链接）

- [ ] **Step 7: 提交**

```bash
git add -A && git commit -m "chore: 仓库骨架（gitignore/依赖/pytest/CLAUDE.md）"
```

---

### Task 2: 引擎代码整体搬运（jc 主线）

**Files:**
- Create: `app/__init__.py`、`app/engine/__init__.py`、`app/engine/services/*`、`app/engine/providers/*`、`app/engine/routes/*`、`app/engine/models.py`、`app/engine/prompts/*`（4 个 md）、`app/main.py`、`tests/*`

- [ ] **Step 1: 拷贝 jc 代码**

```
jc/app/services/      → app/engine/services/
jc/app/providers/     → app/engine/providers/
jc/app/api/routes/    → app/engine/routes/     （admin.py 本阶段不拷，Phase 2 重写）
jc/app/models/database.py → app/engine/models.py
jc/app/prompts/       → app/engine/prompts/    （4 个 md 原样）
jc/app/config.py      → app/engine/config.py   （Phase 1 全程暂留作 .env 回退；Task 9 的 email 平台默认回退读它）
jc/tests/             → tests/                 （去掉 test_admin_*；Phase 2 恢复）
jc/pytest.ini 的 testpaths 已在 Task 1 建
```

- [ ] **Step 2: 全局替换 import 路径**

`app.services` → `app.engine.services`，`app.providers` → `app.engine.providers`，`app.api.routes` → `app.engine.routes`，`app.models.database` → `app.engine.models`，`app.config` → `app.engine.config`。在 tests/ 里同样替换。

- [ ] **Step 3: 过渡版 app/main.py —— 照抄 jc main.py 全文（含模块级 engine/async_session/Base 与 lifespan），只改 import 路径与去掉 admin 路由**

⚠️ **不要写"最小 main"**：`chat.py`/`chat_rest.py`/`lead_push_service.py` 都 `from app.main import async_session`，jc 的 conftest 还 `from app.main import engine`——jc conftest 里文档化过 main→chat_rest 的循环导入次序坑。过渡期保留 jc main.py 的全局 engine/async_session 结构（Task 5b 才由 Registry 接管），admin 路由 import 行删除。同时先把 `jc/static/` 整目录拷到 `static/`（删掉 admin.html——旧单文件后台，Phase 2 重写；Task 10 才改造其余文件，但 `StaticFiles(directory="static")` 需要目录先存在）。

- [ ] **Step 4: 跑全量测试建立基线**

Run: `python -m pytest -x -q`
Expected: 除 admin 相关（已删）外全部 PASS。若有 FAIL，逐个修复 import/fixture 问题直到绿——**这一步的绿色就是后续所有重构的对照基线**。

- [ ] **Step 5: 提交**

```bash
git add -A && git commit -m "feat: jc 引擎主线搬入 app/engine（315 测试基线全绿：320 去掉 admin 5 用例）"
```

---

### Task 3: 出厂默认与深合并

**Files:**
- Create: `app/platform/__init__.py`、`app/platform/defaults.py`、`app/platform/tenant_config.py`
- Test: `tests/test_config_merge.py`

- [ ] **Step 1: 写失败测试**

```python
# tests/test_config_merge.py
from app.platform.defaults import DEFAULT_CONFIG, deep_merge

def test_missing_keys_filled_from_defaults():
    snapshot = {"brand": {"title": "X"}}          # 快照缺一大堆键
    merged = deep_merge(DEFAULT_CONFIG, snapshot)
    assert merged["brand"]["title"] == "X"         # 覆盖生效
    assert "color" in merged["brand"]              # 缺省补齐
    assert "wall" in merged and "push" in merged   # 顶层组补齐

def test_snapshot_not_mutated():
    snapshot = {"brand": {"title": "X"}}
    deep_merge(DEFAULT_CONFIG, snapshot)
    assert snapshot == {"brand": {"title": "X"}}

def test_nested_override_keeps_sibling():
    snapshot = {"email": {"sender_name": "【T】"}}
    merged = deep_merge(DEFAULT_CONFIG, snapshot)
    assert merged["email"]["sender_name"] == "【T】"
    assert "notify_emails" in merged["email"]      # 兄弟键保留默认
```

- [ ] **Step 2: 跑测试确认失败**

Run: `python -m pytest tests/test_config_merge.py -v`
Expected: FAIL（ModuleNotFoundError: app.platform）

- [ ] **Step 3: 实现 DEFAULT_CONFIG + deep_merge**

```python
# app/platform/defaults.py
"""出厂默认配置。结构 = spec §5.1 的 9 个配置组。
本阶段 brand/wall 的默认值由 Task 4 从 jc 代码提取填充。"""
import copy

DEFAULT_CONFIG: dict = {
    "brand": {
        "title": "AI Support", "color": "#066fc0", "avatar": "/static/kefu-small.png",
        "welcome": "", "topics": [], "placeholder": "",
        "whatsapp": "", "email": "", "privacy_url": "",
    },
    "wall": {},   # Task 4 填充
    "contact": {"cc_completion": True, "email_light_ask": True, "template_languages": ["en", "zh", "es"]},
    "email": {"smtp": None, "sender_name": "", "notify_emails": []},
    "push": {"enabled": False, "url": "", "api_key": "", "prefix": "", "timeout": 10,
             "max_attempts": 3, "retry_backoff_base": 1.0},
    "ai": {"provider": "glm", "api_key": None, "base_url": None, "model": "glm-4-flash"},
    "engine": {"context_seed_keys": {}, "rate_limit_per_hour": 30},
    "misc": {"name_to_region_extras": {}},
}

def deep_merge(base: dict, override: dict) -> dict:
    """override 逐层覆盖 base；dict 递归合并，其余类型整体替换。不修改入参。"""
    out = copy.deepcopy(base)
    for k, v in (override or {}).items():
        if isinstance(v, dict) and isinstance(out.get(k), dict):
            out[k] = deep_merge(out[k], v)
        else:
            out[k] = copy.deepcopy(v)
    return out
```

```python
# app/platform/tenant_config.py
from dataclasses import dataclass, field
from app.platform.defaults import DEFAULT_CONFIG, deep_merge

@dataclass(frozen=True)
class Site:
    slug: str
    name: str
    domains: tuple[str, ...]
    brand: dict                 # 站点门面覆盖层 ⊕ 租户默认 brand（已深合并）

@dataclass(frozen=True)
class TenantConfig:
    slug: str
    name: str
    status: str                 # active | disabled
    data: dict                  # deep_merge(DEFAULT_CONFIG, snapshot)
    sites: tuple[Site, ...] = ()

    @classmethod
    def from_snapshot(cls, slug, name, snapshot, sites=(), status="active"):
        merged = deep_merge(DEFAULT_CONFIG, snapshot)
        resolved = tuple(
            Site(s["slug"], s.get("name", s["slug"]), tuple(s.get("domains", ())),
                 deep_merge(merged["brand"], s.get("brand", {})))
            for s in sites)
        return cls(slug=slug, name=name, status=status, data=merged, sites=resolved)
```

- [ ] **Step 4: 跑测试确认通过**

Run: `python -m pytest tests/test_config_merge.py -v`
Expected: 3 PASS

- [ ] **Step 5: 提交**

```bash
git add app/platform tests/test_config_merge.py && git commit -m "feat: 出厂默认与快照深合并（E4 配置演进）"
```

---

### Task 4: 词表数据化（wall 外置）

**Files:**
- Create: `app/engine/wall_schema.py`（编译器）、`seed_profiles/jiancai/wall.json`、`seed_profiles/auto/wall.json`
- Modify: `app/engine/services/boundary_filter.py`（纯函数化+模块级默认）

**思路：** 把 jc `boundary_filter.py` 和 `conversation.py` 里所有正则/话术常量提取成 `wall.json`；`compile_wall(json) → CompiledWall`；boundary_filter 函数加 `wall: CompiledWall | None = None` 参数（None=用模块级默认，默认=jiancai 出厂）——**既有 320 测试零修改**。

- [ ] **Step 0: 先写 scripts/extract_config.py（配置内容机器提取，不手抄）**

从两个老项目确定性生成 seed_profiles 骨架：wall.json（正则/话术从 `boundary_filter.py`/`conversation.py` 的常量提取——**用 AST 解析源码取常量赋值，不要 import 源模块**：conversation.py 的 import 链会拉起 ai_service（它 import 时读提示词文件），脚本本身会挂）、品牌值（chat.html / widget.js / chat.js 三处硬编码 + .env 的 NOTIFY_EMAIL 等归一）、提示词 md（直接拷贝）。脚本幂等可重跑。Task 5a/6 直接消费其产出——词表正确性由 Step 7 等价回归兜底，品牌值从此有单一可信来源（Phase 4 的 extract 职责就此完成，只剩 import_legacy.py）。

- [ ] **Step 1: 生成 jiancai 词表**（用 Step 0 脚本产出，按下述 schema 校对）：

```json
{
  "price_patterns": ["<PRICE_PATTERNS 每条 pattern 原样——防误杀断言就在 pattern 内，一并保留>"],
  "deflections": {"en": ["..."], "zh": ["..."], "es": ["..."]},
  "deflections_contact": {"en": ["<DEFLECTIONS_*_CONTACT 已留资变体池>"], "zh": ["..."], "es": ["..."]},
  "no_contact": {"web": "<NO_CONTACT_WEB>", "app": "<NO_CONTACT_APP>", "already": "<NO_CONTACT_ALREADY>"},
  "triggers": {"boundary": ["..."], "budget": ["..."], "contact_ask": ["..."]},
  "reminders": {"boundary": "<边界提醒>", "contact_ask": "<索要提醒>", "language_follow": "<语言跟随提醒>",
                 "lead_given": "<已留资禁令>", "cc_guide": "<CC 确认指引>", "email_light": "<邮箱轻补>"},
  "cc_templates": {"en": ["<回显确认模板 EN>"], "zh": ["<ZH>"], "es": ["<ES>"]}
}
```

⚠️ **anti_kill 不设字段**：两个源项目的防误杀都不是独立常量，而是内嵌在正则断言里（如后顾放行、`(?!\s*(公里|km))` 排除）——没有可提取的"清单"。两租户防误杀差异由各自 price_patterns 自带断言体现，CompiledWall 不设 anti_kill。

`seed_profiles/auto/wall.json`：同一结构，price_patterns 用上游 ai-kefu 的中英+$ 词表（汽车防误杀断言如 km/年款内置于其 pattern）、deflections 去掉 es。

- [ ] **Step 2: 写编译器（先写失败测试）**

```python
# tests/test_wall_schema.py
import json, pathlib, re
from app.engine.wall_schema import compile_wall

JIANCE = json.loads(pathlib.Path("seed_profiles/jiancai/wall.json").read_text(encoding="utf-8"))

def test_compile_produces_regex_objects():
    wall = compile_wall(JIANCE)
    assert all(isinstance(p, re.Pattern) for p in wall.price_patterns)
    assert wall.deflections["es"]                    # jc 有西语池
    assert any(p.search("precio de DN800") for p in wall.price_patterns) or True  # 行为等价由既有测试保证

def test_compile_rejects_bad_regex():
    bad = dict(JIANCE, price_patterns=["([unclosed"])
    try:
        compile_wall(bad)
        assert False, "应抛 WallConfigError"
    except Exception as e:
        assert "price_patterns" in str(e) or "regex" in str(e).lower()
```

- [ ] **Step 3: 跑测试确认失败** → `ModuleNotFoundError: app.engine.wall_schema`

- [ ] **Step 4: 实现编译器**

```python
# app/engine/wall_schema.py
import re
from dataclasses import dataclass

class WallConfigError(ValueError): pass

@dataclass(frozen=True)
class CompiledWall:
    price_patterns: tuple
    deflections: dict
    deflections_contact: dict
    no_contact: dict
    triggers: dict      # 每值 tuple[re.Pattern]
    reminders: dict     # 六类轮中提醒话术（_build_context_reminder 的数据源）
    cc_templates: dict

def compile_wall(cfg: dict) -> CompiledWall:
    try:
        prices = tuple(re.compile(p) for p in cfg.get("price_patterns", []))
        triggers = {k: tuple(re.compile(p) for p in v)
                    for k, v in cfg.get("triggers", {}).items()}
    except re.error as e:
        raise WallConfigError(f"regex 编译失败: {e}") from e
    return CompiledWall(
        price_patterns=prices,
        deflections={k: list(v) for k, v in cfg.get("deflections", {}).items()},
        deflections_contact={k: list(v) for k, v in cfg.get("deflections_contact", {}).items()},
        no_contact=dict(cfg.get("no_contact", {})),
        triggers=triggers,
        reminders=dict(cfg.get("reminders", {})),
        cc_templates={k: list(v) for k, v in cfg.get("cc_templates", {}).items()},
    )
```

- [ ] **Step 5: boundary_filter 纯函数化**。函数签名改为接收 `wall: CompiledWall | None = None`，模块顶部 `DEFAULT_WALL = compile_wall(json.loads(_default_wall_json))`（`_default_wall_json` 内联读 `seed_profiles/jiancai/wall.json`）；函数体内所有模块常量引用改为 `w = wall or DEFAULT_WALL`。**函数逻辑一行不动**，只换数据来源。

- [ ] **Step 6: conversation.py 三组触发正则同法**：`BOUNDARY_TRIGGER_RE` 等 → 由 `config.wall.triggers` 编译产物替代；`_build_context_reminder` 的六类逐字话术改为从 `config.wall.reminders` 取（jc 原文进 jiancai 的 reminders 字段——schema 已定义，见 Step 1）。

- [ ] **Step 7: 跑全量回归**

Run: `python -m pytest -q`
Expected: 全绿（既有测试用默认 wall=jiancai，行为不变）。若 boundary 相关测试红，说明 JSON 提取漏了/抄错了正则，对照 jc 原文件修正 JSON 直到绿。

- [ ] **Step 8: 提交**

```bash
git add -A && git commit -m "feat: 词表数据化——boundary/conversation 正则话术外置 wall.json（等价回归全绿）"
```

---

### Task 5a: TenantRuntime + Registry（文件加载器，纯单元级）

**Files:**
- Create: `app/platform/registry.py`、`seed_profiles/jiancai/tenant.json`、`seed_profiles/auto/tenant.json`

（app 装配与服务构造线改造拆到 Task 5b——本任务只做 Registry 本体，单元测试验证，不碰 app 与既有测试。）

- [ ] **Step 1: 写两个 tenant.json**

**seed_profiles/jiancai/tenant.json**（纯 JSON，无注释；**站点模型**——域名挂在站点上，站点属于租户）：

```json
{ "slug": "jiancai", "name": "HESUPIPE 建材", "status": "active",
  "sites": [
    { "slug": "main", "domains": ["chat2.agent.hnxinyouhe.com", "localhost.jc"] },
    { "slug": "es", "domains": [],
      "brand": {"title": "HESUPIPE Soporte", "welcome": "¡Hola! ¿En qué podemos ayudarle?"} }
  ],
  "config": { "brand": {"title": "HESUPIPE Support", "color": "#066fc0",
      "whatsapp": "+8615937108317", "email": "hesu@hesuu.com",
      "privacy_url": "https://hesupipe.com/privacy-policy"},
    "push": {"prefix": "ai-kefu-jc"},
    "engine": {"context_seed_keys": {"product_name": "app_product_name",
                                       "product_id": "app_product_id"}} } }
```

规则：每租户**至少一个站点**；`site.brand` 是覆盖层（缺省项继承 `config.brand`，用 deep_merge）；`site.domains` 非空的站点按 Host 识别，空域名的站点（如 es）靠嵌入代码 `data-site="es"` 接入（共用挂件域名）；site slug 不可变。auto 同理（main 站 domains: chat.agent.hnxinyouhe.com，prefix ai-kefu，context_seed_keys 用 vehicle_*，品牌橙 #f08a31）。`config` 内**不含** prompts（prompts 由目录内 md 提供，见 Task 6）与 wall（同目录 wall.json）。

- [ ] **Step 2: 写失败测试**

```python
# tests/test_registry.py
import pytest
from app.platform.registry import TenantRegistry, UnknownTenantError, make_tenant_engine

def test_resolve_by_host(tmp_path):
    reg = TenantRegistry.load_from_dir("seed_profiles", data_dir=tmp_path)
    rt = reg.resolve("chat2.agent.hnxinyouhe.com")
    assert rt.config.slug == "jiancai"
    assert rt.config.data["push"]["prefix"] == "ai-kefu-jc"

def test_unknown_host_404_semantics(tmp_path):
    reg = TenantRegistry.load_from_dir("seed_profiles", data_dir=tmp_path)
    with pytest.raises(UnknownTenantError):
        reg.resolve("nope.example.com")

def test_tenant_db_isolated_per_slug(tmp_path):
    reg = TenantRegistry.load_from_dir("seed_profiles", data_dir=tmp_path)
    a, b = reg.resolve("chat2.agent.hnxinyouhe.com"), reg.resolve("chat.agent.hnxinyouhe.com")
    assert a.db_path != b.db_path and a.db_path.name == "jiancai.db"

def test_reload_swaps_config_atomically(tmp_path):
    reg = TenantRegistry.load_from_dir("seed_profiles", data_dir=tmp_path)
    rt = reg.resolve("chat2.agent.hnxinyouhe.com")
    reg.registry_reload("jiancai")          # 重新读盘
    assert reg.resolve("chat2.agent.hnxinyouhe.com") is not rt

def test_site_brand_overlay_and_inheritance(tmp_path):
    reg = TenantRegistry.load_from_dir("seed_profiles", data_dir=tmp_path)
    rt, site = reg.resolve_site("chat2.agent.hnxinyouhe.com")
    assert site.slug == "main"
    es = rt.site_by_slug("es")              # 空域名站点按 slug 取
    assert es.brand["title"] == "HESUPIPE Soporte"          # 覆盖生效
    assert es.brand["color"] == rt.config.data["brand"]["color"]  # 未覆盖项继承租户默认
```

- [ ] **Step 3: 跑测试确认失败**

- [ ] **Step 4: 实现 registry.py**

```python
# app/platform/registry.py
import json, pathlib
from sqlalchemy import event, text
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from app.engine.models import Base
from app.engine.services.conversation import ConversationManager
from app.engine.services.ai_service import PromptProvider
from app.engine.wall_schema import compile_wall
from app.platform.tenant_config import TenantConfig

class UnknownTenantError(LookupError): pass

def make_tenant_engine(db_path: pathlib.Path):
    engine = create_async_engine(
        f"sqlite+aiosqlite:///{db_path}", pool_size=2, max_overflow=0,
        connect_args={"timeout": 30})
    @event.listens_for(engine.sync_engine, "connect")
    def _wal(dbapi_conn, _):                     # spec §6.1 WAL 纪律
        dbapi_conn.execute("PRAGMA journal_mode=WAL")
    return engine

class TenantRuntime: ...
    # dataclass: config, db_path, engine, session_factory, manager, prompts, compiled_wall
    # + sites: tuple[Site]（slug/domains/brand 覆盖层已 deep_merge）+ site_by_slug(slug)

class TenantRegistry:
    def __init__(self): self._by_host, self._by_slug = {}, {}
    @classmethod
    def load_from_dir(cls, seed_dir, data_dir): ...
        # 每个 seed_profiles/<slug>/tenant.json → TenantConfig.from_snapshot
        # + 同目录 wall.json/prompts/*.md 并入 snapshot 后再 merge
        # data_dir/<slug>.db 懒建（首次 resolve 时 ensure schema: Base.metadata.create_all + _migrate）
    def resolve(self, host) -> TenantRuntime: ...
    def registry_reload(self, slug): ...
```

（实现要点：懒创建用 `_lock` 串行；首次 resolve 执行 `run_sync(Base.metadata.create_all)` 与 jc `_migrate` 同等加列逻辑；ConversationManager 构造参数改为接收 session_factory + config + prompts + wall；`resolve(host)` 只是 `resolve_site(host)[0]` 的便捷形式——双 API 一层实现防漂移；registry 提供 `dispose_all()` 关闭全部 engine——**测试 teardown 必须调它，Windows 上连接不关文件锁着、tmp 目录删不掉**。）

- [ ] **Step 5: 跑单元测试 + 提交**

Run: `python -m pytest tests/test_registry.py -q`
Expected: 5 项 PASS（不动全量——装配在 5b）

```bash
git add -A && git commit -m "feat: TenantRuntime/Registry——每租户懒建 engine(WAL/pool2)+文件加载器+站点解析"
```

### Task 5b: 装配切换（main 重装配 + 服务构造线 + conftest 全量迁移）

**Files:**
- Modify: `app/main.py`（Registry 装配，去全局单例）、`app/engine/routes/chat.py`、`chat_rest.py`、各 services 构造线、`tests/conftest.py`
- Test: 全量回归（本任务的验收就是 315+5 全绿）

- [ ] **Step 1: main.py 装配**：lifespan 里 `registry = TenantRegistry.load_from_dir("seed_profiles", data_dir=Path("tenants"))` 挂 `app.state.registry`；逐租户启动 `sweep_stale_pending`；删除全局 engine/async_session。**过渡兜底**：中间件（Task 7）上线前，路由取租户处加"state 无租户 → 默认取 jiancai"的 fallback（Task 7 完成后删除，避免 API 测试在 5b→7 之间拿不到 state 挂掉）

- [ ] **Step 2: 服务构造线注入**：ConversationManager 由 registry 造（session_factory + config + prompts + wall）；WS/REST 路由从 `request.state.tenant` / `websocket.state.tenant` 取 runtime（经 Step 1 兜底）

- [ ] **Step 3: conftest 全量迁移**：每测试 tmp `data_dir` + registry 夹具（含 **teardown 调 `registry.dispose_all()`** 再清目录——Windows 文件锁）；jc 原先 `from app.main import engine` 的 autouse 夹具改从 registry 取

- [ ] **Step 4: 全量回归**

Run: `python -m pytest -q`
Expected: 315 + 5 全绿。红了逐个修夹具，不改产品断言

- [ ] **Step 5: 提交**

```bash
git add -A && git commit -m "feat: 装配切换——main/服务构造线/conftest 迁至 Registry（含默认租户过渡兜底）"
```

---

### Task 6: PromptProvider + $DEFLECTION_POOL 注入

**Files:**
- Create: `app/engine/prompts/__init__.py` 更新、`seed_profiles/*/prompts/*.md`（4 件套各租户一份）
- Modify: `app/engine/services/ai_service.py`

- [ ] **Step 1: 拷提示词**：jc 4 个 md → seed_profiles/jiancai/prompts/；ai-kefu 4 个 md → seed_profiles/auto/prompts/。`app/engine/prompts/` 保留 jiancai 副本作代码级默认。

- [ ] **Step 2: 写失败测试**

```python
# tests/test_prompt_provider.py
from app.engine.services.ai_service import PromptProvider

def test_provider_loads_from_tenant_dir():
    p = PromptProvider.from_dir("seed_profiles/jiancai/prompts")
    assert "HESUPIPE" in p.company_facts or "管道" in p.system

def test_system_prompt_injects_deflection_pool():
    p = PromptProvider.from_dir("seed_profiles/jiancai/prompts")
    wall_json = ...  # 读 jiancai wall.json
    sysprompt = p.build_system(wall_deflections=wall_json["deflections"])
    for lang, lines in wall_json["deflections"].items():
        for line in lines[:1]:
            assert line in sysprompt        # 话术池注入 = 单一事实源（R1）
    assert "HESUPIPE" in sysprompt          # 事实卡拼接保留
```

- [ ] **Step 3: 实现 PromptProvider**：`from_dir` 读 4 个 md；`build_system(wall_deflections)` = system.md 中 `$DEFLECTION_POOL` 占位符替换为按语言枚举的话术清单 + "\n\n" + company_facts.md。stream_chat/extract/evaluate 的 $existing_info 等替换逻辑原样搬入 Provider 方法。删除 ai_service 模块级 import 时读文件的行为。

- [ ] **Step 4: jc 的 system.md 里"模板句枚举"段落替换为 `$DEFLECTION_POOL` 占位符**（原枚举文本已进 wall.json，提示词与墙从此同源）。auto 的 system.md 同法。

- [ ] **Step 5: 全量回归 + 提交**

Run: `python -m pytest -q` → 全绿（提示词文案断言测试若断言旧枚举文本，改为断言注入结果）。

```bash
git add -A && git commit -m "feat: PromptProvider 化 + $DEFLECTION_POOL 单一事实源注入"
```

---

### Task 7: 路由租户化 + Host 中间件 + 停用页

**Files:**
- Create: `app/platform/host_middleware.py`
- Modify: `app/engine/routes/chat.py`、`chat_rest.py`、`app/main.py`、`tests/conftest.py`
- Test: `tests/test_host_routing.py`

⚠️ conftest 需新增 `build_app(seed_dir, data_dir)` 工厂与 `app_client` 夹具（jc conftest 没有这个）：临时目录建租户库 → Registry.load_from_dir → 挂中间件的 app → TestClient（可设 host 头）。后续 Task 9/10 的接线测试复用它。

- [ ] **Step 1: 写失败测试**

```python
# tests/test_host_routing.py
from fastapi.testclient import TestClient
# conftest 提供 build_app(seed_dir, data_dir) 工厂

def test_known_host_serves_health(app_client):
    r = app_client.get("/health")
    assert r.status_code == 200

def test_unknown_host_gets_404(app_client):
    app_client.headers = {"host": "nope.example.com"}
    r = app_client.get("/health")
    assert r.status_code == 404

def test_disabled_tenant_gets_pause_page(app_client):
    # 把 jiancai tenant.json status 改 disabled 的夹具
    r = app_client.get("/api/chat/session", headers={"host": "chat2.agent.hnxinyouhe.com"})
    assert r.status_code == 503 and "暂停" in r.text
```

- [ ] **Step 2: 实现纯 ASGI 中间件**（http + websocket 都覆盖，BaseHTTPMiddleware 不处理 WS）：

```python
# app/platform/host_middleware.py
class TenantHostMiddleware:
    def __init__(self, app, registry): self.app, self.registry = app, registry
    async def __call__(self, scope, receive, send):
        if scope["type"] not in ("http", "websocket"):
            return await self.app(scope, receive, send)
        host = dict(scope.get("headers", {})).get(b"host", b"").decode().split(":")[0].lower()
        try:
            rt, site = self.registry.resolve_site(host)   # 域名→站点→租户
        except UnknownTenantError:
            if scope["type"] == "http":
                resp = PlainTextResponse("not found", status_code=404)
                return await resp(scope, receive, send)
            raise WebSocketException(1008)  # 或 close
        if rt.config.status == "disabled":
            # 503 中性暂停页（同上双通道处理）
            ...
        scope["state"] = scope.get("state") or {}
        scope["state"]["tenant"], scope["state"]["site"] = rt, site
        await self.app(scope, receive, send)
```

- [ ] **Step 3: routes 从 scope/request.state.tenant 取 runtime**，替换原全局 manager 引用；WS 循环与 REST 聚合逻辑不变。

- [ ] **Step 4: 全量回归 + 提交**

```bash
git add -A && git commit -m "feat: Host 中间件租户路由（未知404/停用503暂停页/WS覆盖）"
```

---

### Task 8: WS 每 IP 连接上限

**Files:**
- Create: `app/engine/services/conn_limiter.py`
- Modify: `app/engine/routes/chat.py`
- Test: `tests/test_conn_limiter.py`

- [ ] **Step 1: 失败测试**（纯单元）：

```python
def test_limit_per_ip():
    lim = ConnectionLimiter(limit=2)
    assert lim.try_acquire("1.1.1.1") and lim.try_acquire("1.1.1.1")
    assert not lim.try_acquire("1.1.1.1")          # 第 3 个拒绝
    lim.release("1.1.1.1")
    assert lim.try_acquire("1.1.1.1")              # 释放后可再进
    assert lim.try_acquire("2.2.2.2")              # 其他 IP 不受影响
```

- [ ] **Step 2: 实现**（dict[str,int] + 上下文计数，release 在 WS finally 里调用；limit 进 engine 配置组，默认 10）

- [ ] **Step 3: 全量回归 + 提交** `git commit -m "feat: WS 每 IP 并发连接上限（默认10）"`

---

### Task 9: 服务层配置接线（email/push/rate_limit/AI 凭据/行为开关/映射表/种子键）

**背景（评审核实 + 缺口分析）：** jc 现状——email_service 读全局 settings（SMTP_*/NOTIFY_EMAIL，发件名硬编码【HESUPIPE】）；lead_push_service 读 settings.PUSH_*；rate_limit 的 key=(ip, device)；glm provider 实例化读 settings 的智谱凭据；cc_completion 的 NAME_TO_REGION 与 chat_rest 的种子键白名单是代码常量。DEFAULT_CONFIG 里定义的 ai/contact/misc/engine 组**没人读**——既有测试 monkeypatch 的都是 settings，缺口测试暴露不了，必须新增接线测试逼出来。不接线的话：两租户联调静默错配（auto 用上 jc 的 SMTP/推送目标），且"租户用自己的 AI key""关掉邮箱轻补"是摆设开关。

另：jc 的 lead_push 已是 httpx.AsyncClient（`_do_post`）、glm 已走 executor，零同步 IO 纪律在主线已满足，无需改造（Task 12 做审计确认）。

**Files:**
- Modify: `app/engine/services/email_service.py`、`lead_push_service.py`、`rate_limit.py`、`ai_service.py`（provider 工厂）、`cc_completion.py`（映射表合并）、`app/engine/routes/chat_rest.py`（种子键白名单）
- Test: `tests/test_tenant_config_wiring.py`

- [ ] **Step 1: 写失败测试**

```python
# tests/test_tenant_config_wiring.py
from types import SimpleNamespace
from app.platform.tenant_config import TenantConfig

def _cfg(over=None):
    snap = {"email": {"smtp": {"host": "s", "port": 465, "user": "u", "pass": "p"},
                       "sender_name": "【T】", "notify_emails": ["a@b.c"]},
            "push": {"enabled": True, "url": "http://x", "api_key": "k",
                      "prefix": "t1", "timeout": 5, "max_attempts": 1,
                      "retry_backoff_base": 1.0}}
    snap.update(over or {})
    return TenantConfig.from_snapshot("t1", "T", snap)

def test_email_reads_tenant_smtp(monkeypatch):
    import app.engine.config as cfg_mod
    monkeypatch.setattr(cfg_mod, "settings",
        SimpleNamespace(SMTP_HOST="WRONG", SMTP_PORT=1, SMTP_USER="WRONG",
                        SMTP_PASS="WRONG", NOTIFY_EMAIL="wrong@x"))
    resolved = resolve_email_settings(_cfg())          # 期望读租户段而非全局
    assert resolved.notify_emails == ["a@b.c"] and resolved.sender_name == "【T】"

def test_push_reads_tenant_section():
    p = resolve_push_settings(_cfg())
    assert p.url == "http://x" and p.prefix == "t1"

def test_rate_limit_key_includes_tenant():
    from app.engine.services.rate_limit import RateLimiter
    lim = RateLimiter()
    assert lim.check("t1", "1.1.1.1", "dev1", limit=2) is True
    assert lim.check("t1", "1.1.1.1", "dev1", limit=2) is True
    assert lim.check("t2", "1.1.1.1", "dev1", limit=2) is True   # 换租户不受影响

def test_ai_settings_override_and_fallback(monkeypatch):
    import app.engine.config as cfg_mod
    monkeypatch.setattr(cfg_mod, "settings",
        SimpleNamespace(ZHIPU_API_KEY="ENV_KEY", ZHIPU_BASE_URL=None, AI_MODEL="glm-4-flash"))
    fb = resolve_ai_settings(_cfg())                        # 未覆盖 → 回退 env
    assert fb.api_key == "ENV_KEY" and fb.model == "glm-4-flash"
    ov = resolve_ai_settings(_cfg({"ai": {"api_key": "k2", "model": "glm-4-plus"}}))
    assert ov.api_key == "k2" and ov.model == "glm-4-plus"

def test_contact_toggles_resolve():
    flags = resolve_contact_flags(_cfg({"contact": {"cc_completion": False,
                                                    "email_light_ask": False}}))
    assert flags.cc_completion is False and flags.email_light_ask is False

def test_name_to_region_extras_merged():
    cfg = _cfg({"misc": {"name_to_region_extras": {"德意志": "DE"}}})
    from app.engine.services.cc_completion import region_for_name
    assert region_for_name("德意志", cfg) == "DE"

def test_chat_rest_seed_keys_from_config():
    keys = allowed_seed_keys(_cfg({"engine": {"context_seed_keys":
        {"vehicle_name": "app_vehicle_name", "vehicle_id": "app_vehicle_id"}}}))
    assert keys == {"vehicle_name", "vehicle_id"}
```

- [ ] **Step 2: 跑测试确认失败**

Run: `python -m pytest tests/test_tenant_config_wiring.py -v`
Expected: FAIL（resolve_* 函数不存在 / rate_limit 不收 tenant 参数）

- [ ] **Step 3: 实现接线**：
  - email/push：`resolve_email_settings(config)` / `resolve_push_settings(config)`（读 config.data 对应组；email.smtp 为 None 回退 env settings）
  - AI：`resolve_ai_settings(config)` 供 provider 工厂按租户实例化 glm（api_key/base_url/model 未覆盖回退 env settings）
  - contact 开关：`resolve_contact_flags(config)` 接进 conversation 的 `_cc_pre_turn` 门控与邮箱轻补分支
  - 映射表：cc_completion 查表函数加 extras 参数（NAME_TO_REGION ⊕ misc.name_to_region_extras）
  - 种子键：chat_rest 白名单改读 `config.engine.context_seed_keys` 的键集合
  - rate_limit：桶 key 改 `(tenant_slug, ip, device)`、limit 读 `config.engine.rate_limit_per_hour`

- [ ] **Step 4: 既有 email/push 测试回归**：monkeypatch 点从 settings 迁到 resolve_*_settings 返回值（或直接传 config 夹具），断言不变

- [ ] **Step 5: 全量回归 + 提交**

```bash
git add -A && git commit -m "feat: 服务层配置接线——email/push/rate_limit/AI凭据/行为开关/映射表/种子键"
```

---

### Task 10: /api/public/brand + 前端租户化

**Files:**
- Create: `app/engine/routes/public.py`、`seed_profiles/jiancai/assets/kefu-small.png`（自 jc/static 拷）、`seed_profiles/auto/assets/kefu-small.png`（自 ai-kefu/static 拷——**两项目头像不同，各归各**）
- Modify: `static/widget.js`、`static/js/chat.js`、`static/chat.html`（从 jc 拷入后改）
- Test: `tests/test_brand_endpoint.py`、`tests/test_widget_namespacing.py`

- [ ] **Step 1: 失败测试**

```python
BRAND_EXPECTED = {"slug", "title", "color", "avatar", "welcome", "topics",
                  "placeholder", "whatsapp", "email", "privacy_url"}

def test_brand_whitelist_only(app_client):
    r = app_client.get("/api/public/brand", headers={"host": "chat2.agent.hnxinyouhe.com"})
    assert r.status_code == 200
    assert set(r.json().keys()) == BRAND_EXPECTED      # 白名单，绝不多吐
    assert "api_key" not in r.text and "smtp" not in r.text.lower()
    assert r.headers["access-control-allow-origin"] == "*"

def test_brand_site_overlay(app_client):
    h = {"host": "chat2.agent.hnxinyouhe.com"}
    r = app_client.get("/api/public/brand?site=es", headers=h)
    assert r.json()["title"] == "HESUPIPE Soporte"      # 站点覆盖生效
    r2 = app_client.get("/api/public/brand", headers=h)
    assert r2.json()["title"] == "HESUPIPE Support"     # 不带 site = 租户默认门面
    r3 = app_client.get("/api/public/brand?site=nope", headers=h)
    assert r3.json()["title"] == "HESUPIPE Support"     # 未知 site 回退

def test_avatar_served_per_tenant(app_client):
    r = app_client.get("/api/public/avatar", headers={"host": "chat.agent.hnxinyouhe.com"})
    assert r.status_code == 200 and r.headers["content-type"].startswith("image/")
```

```python
# tests/test_widget_namespacing.py —— 静态断言（仿 test_theme_static 风格）
def test_widget_keys_namespaced_by_slug():
    src = pathlib.Path("static/widget.js").read_text(encoding="utf-8")
    assert "cc-widget-host-${" in src or "cc-widget-host-" + "${" in src
    assert "widget_invite_dismissed_${" in src
```

- [ ] **Step 2: 实现 public.py + 前端改造**
  - `/api/public/brand?site=<slug>`：站点覆盖层 ⊕ 租户默认门面，显式字段白名单序列化 + CORS `*`；未带/未知 site 回退租户默认
  - `/api/public/avatar`：按当前租户解析 `seed_profiles/<slug>/assets/<brand.avatar 文件名>`，缺省回退 `static/kefu-small.png`（Phase 2 起改读 uploads 卷）
  - widget.js：读自身 `data-site` 属性，fetch brand 时带 `?site=`；所有默认值改读 brand；host id / sessionStorage / localStorage key 拼租户 slug（同租户多站点靠页面 path 天然隔离）；fetch 失败退 data-*/中性默认；**WS init 消息带 site**，服务端记入 client_info（会话打站点标，后台可按站筛线索）；**REST `/api/chat/session` 同样收 `?site=` 记入 client_info**（与 WS 对齐，App/REST 来源不缺站标）
  - chat.html/chat.js 同法（fetch 统一）

- [ ] **Step 3: 手动冒烟**：`uvicorn app.main:app --port 8018` 起服务，改本机 hosts 把两个测试域名指 127.0.0.1，浏览器开 `static/widget-test.html` 验证两租户品牌与同页共存。

- [ ] **Step 4: 全量回归 + 提交** `git commit -m "feat: brand 白名单下发 + widget/chat 客户端 key 租户化"`

---

### Task 11: 上游吸收

**Files:**
- Modify: `static/widget.js`（placeholder 可配置——对齐 ai-kefu 的 input-placeholder 实现，读 brand.placeholder + data-placeholder 覆盖）
- Test: 从 `D:\refactor\ai-kefu\tests\` 拷入 `test_channel_hygiene.py`、`test_chat_rest_ip.py`、`test_lead_push_cc.py`、`test_cc_integration.py`、`test_prompt_static.py`、`test_ip_service_region.py`、`test_placeholder_static.py` → 修 import 跑绿（行为以 jc 实现为准，断言不适处改断言不改实现）

- [ ] **Step 1: 拷 7 个测试文件、修 import、跑**
- [ ] **Step 2: 红→绿循环**：失败断言逐条判断是"上游测的旧行为"（改断言）还是"jc 缺的修复"（补实现，注明同步自上游）
- [ ] **Step 3: 提交** `git commit -m "feat: 吸收上游测试断言与 placeholder 配置化"`

---

### Task 12: Phase 1 收尾

- [ ] **Step 1: 全量回归** `python -m pytest -q` → 全绿，记录用例数（基线 315 + 新增 ~20）
- [ ] **Step 2: 零同步 IO 审计**：`grep -rn "requests\.\|urllib\|time\.sleep" app/` 确认 async 路径无同步 IO（已核实：lead_push_service._do_post 为 httpx.AsyncClient、providers/glm.py 流式走 executor）；审计结论写入 CLAUDE.md
- [ ] **Step 3: spec §6.2 合并清单逐项打勾核对**（jc 六项取入/上游吸收/三不带：blog.html、Redis、旧版 whatsapp-cc）
- [ ] **Step 4: 更新 CLAUDE.md**（Phase 1 完成状态、本地起服务方法、测试基线数）
- [ ] **Step 5: 提交** `git commit -m "chore: Phase 1 收尾——引擎合并租户化完成"`

---

## 显式不做（Phase 1 范围外）

platform.db/版本快照/admin 认证/试金石（Phase 2）；art-design-pro 后台（Phase 3）；Dockerfile/部署/迁移脚本（Phase 4，本阶段纯本地代码+测试）。