refactor: switch to free-trial/private-deploy/buyout pricing, fix feature gaps, add SEO landing + deploy config

AGENTS.md

@@ -1,5 +1,20 @@
 # TradeMate (外贸小助手) — Agent Guide
 
+## Chrome 浏览器扩展 🆕
+
+- **目录**: `browser-extension/` — 完整 Chrome 插件
+- **功能**: popup 面板调用 AI 翻译/回复/提取客户信息、网页右键菜单集成、自动填写报价单
+- **兼容平台**: LinkedIn / Amazon / AliExpress 等外贸平台页面
+- **安装**: 打开 `chrome://extensions` → 加载已解压的扩展 → 选择 `browser-extension/` 目录
+- **API 客户端**: `browser-extension/api/client.js` — 封装后端 API 调用，支持 JWT 认证
+
+## UX Design
+
+- **PC 工作台**: 侧边栏 5 项精简导航 (首页/客户/业务/翻译/更多) + **CommandK 命令面板** (Ctrl+K)
+- **移动端 H5**: 底部 4 Tab 导航 (首页/客户/业务/我的)
+- **工作区合并**: Customers/Discovery/Followup → `WorkspaceCustomer`；Translate/Products/Quotations/Marketing → `WorkspaceBiz`
+- **路由**: 旧页面保留隐藏路由，保证兼容性
+
 ## uni-app 移动端 H5 (改版后)
 
 - **Tab Bar**: 4 项底部导航 — 首页 / 客户 / 业务 / 我的
@@ -36,9 +51,16 @@
   - `GET /api/v1/agent/pipelines` — 任务列表
   - `GET /api/v1/agent/{pipeline_id}` — 任务详情
 - **流程**: 用户输入产品+市场 → AgentOrchestrator 串接 DiscoveryService.search() → analyze() → outreach() → 自动保存高匹配客户
-- **前端入口**: `UserLayout.vue` 侧边栏首位 "AI数字员工" (MagicStick 图标)
+- **前端入口**: `user-frontend/src/views/Agent.vue` 已接入路由 `/workspace/agent` 与 `UserLayout.vue` 侧边栏 "AI数字员工" (MagicStick 图标)；`/agent` 重定向到 `/workspace/agent`
 - **迁移**: 需要运行 `alembic revision --autogenerate -m "add agent_pipelines"` 创建 `agent_pipelines` 表
 
+## 收费方式（免费试用 / 私有化部署 / 买断源码）
+
+- **页面**: `user-frontend/src/views/Upgrade.vue` + `UpgradeModal.vue`、`uni-app/src/pages/upgrade/upgrade.vue`、浏览器插件升级入口均改为三种方案：免费试用 / 私有化部署（年付授权）/ 买断源码（一次性）
+- **企业线索**: 私有化部署与买断源码的 CTA 提交到 `POST /api/v1/leads`（模型 `EnterpriseLead`，表 `enterprise_leads`），无需登录；admin 可在 `enterprise_leads` 表查看
+- **价格占位**: `Upgrade.vue` 中 `PRICING` 对象（¥39,800/年、¥98,000 一次性）为可配置展示值
+- **说明**: 旧的按月订阅套餐（`/credits/subscribe`）仍存在于后端，但前端不再主推；如彻底下线订阅需同步清理 `credits.py` 订阅逻辑
+
 ## Architecture
 
 - **Backend**: `backend/` — FastAPI + SQLAlchemy 1.4 async + asyncpg, single `app.main:app`
@@ -50,8 +72,8 @@
 
 ## AI Providers
 
-- **Active**: Sensenova (商汤), NVIDIA, 阿里机器翻译 (alibaba-mt) — 5 providers in DB
-- **Removed**: Claude, DeepL, Local, OpencodeGo, 讯飞 Spark — all git rm'd
+- **Active (seeded by `seed_from_env()`)**: Sensenova (商汤, if `SENSENOVA_API_KEY` set), NVIDIA (if `NVIDIA_API_KEY` set), 阿里翻译 alibaba-mt (always inserted) — at most 3 rows. Do NOT assume 5 providers exist.
+- **Removed**: Claude, DeepL, Local, OpencodeGo, 讯飞 Spark — provider implementations were git rm'd; don't re-add them.
 - **DB-driven**: `AIProvider` model + `admin_ai.py` API — manage providers at runtime. `router.seed_from_env()` loads from `.env` on startup
 - **ECS RAM role**: 阿里翻译使用 ECS 实例 RAM 角色 `trademate-translate` 获取 STS 临时凭证
 - **Provider type mapping** in `router.py._build_provider()`: sensenova, nvidia, alibaba-mt
@@ -90,6 +112,8 @@ cd user-frontend && npm run dev    # port 5174, base: /workspace/
 cd backend && venv/bin/pytest              # all
 venv/bin/pytest tests/test_auth_api.py     # single file
 venv/bin/pytest tests/ -k "test_login"     # keyword filter
+# pytest.ini: asyncio_mode=auto (no @pytest.mark.asyncio needed) and
+# addopts adds --cov=app coverage automatically on every run.
 
 # Builds
 cd uni-app && npm run build:h5             # uni-app (mobile H5)
@@ -110,6 +134,7 @@ alembic revision --autogenerate -m "desc"
 - **Nginx**: SPA fallbacks for `/app/`, `/admin/`, `/workspace/`
 - **vite config**: each project has its own `base` path and dev port
 - **API**: proxied via nginx `location /api/` to `127.0.0.1:8000`
+- **Makefile `make deploy`** references `docker-compose.prod.yml` / `docker-compose.staging.yml`, which do **not** exist (only `docker-compose.yml` is present). Those targets are currently broken.
 
 ## Critical Quirks
 
@@ -132,7 +157,7 @@ alembic revision --autogenerate -m "desc"
 
 ## Project Conventions
 
-- **No README.md** — key context is in `PROGRESS.md` and `docs/`
+- **Docs**: `README.md` (overview), `PROGRESS.md` (task status), `docs/` (API/schema/architecture). README references this file for dev norms.
 - **Chinese UI** — mobile-first, for foreign-trade SOHOs/small teams
 - **No comments in code** unless explicitly asked
 - **Commit messages** focus on "why" not "what", in English