M0+M1: 基建 + 用户/密钥/核心代理

后端 (Go/Gin/GORM):
- 配置(viper+env)、SQLite/Postgres 迁移、argon2id、AES-GCM 渠道密钥、JWT+refresh cookie
- 用户注册/登录/刷新/登出、API Key CRUD(仅存哈希、明文一次展示)
- 代理网关: /v1/chat/completions、/v1/responses、/v1/models 直通 OpenAI 渠道
  非流式+流式(SSE 零缓冲转发), 用量捕获(chat 末块/responses completed 嵌套),
  OpenAI 错误格式(401/402/404/502), 余额检查
- 异步批量记账 + 余额流水 + 日聚合, admin 用户/余额/配置 API
- 单测: crypto/jwt/apikey/流式 usage 提取

前端 (Vue3+TS+Vite+Tailwind v4):
- taste-skill 设计 tokens: 深色仪表盘, 石墨+信号铜色, Outfit+JetBrains Mono
- Landing/登录/注册, 控制台(仪表盘图表/密钥管理/用量明细)
- 基础组件 Button/Input/Badge/Modal, ECharts 用量图

部署: docker-compose(nginx+api+postgres), 双 Dockerfile, nginx SSE 反代
联调: scripts/mockupstream 本地 mock 上游, 端到端验证通过

server/cmd/server/main.go

@@ -0,0 +1,82 @@
+// openteam 大模型中转站 API 服务入口。
+// 启动：OT_PROXY_UPSTREAM_KEY=sk-xxx go run ./cmd/server
+package main
+
+import (
+	"context"
+	"errors"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/openteam/server/internal/api"
+	"github.com/openteam/server/internal/app"
+	"github.com/openteam/server/internal/config"
+	"github.com/openteam/server/internal/proxy"
+)
+
+func main() {
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("config: %v", err)
+	}
+
+	a, err := app.New(cfg)
+	if err != nil {
+		log.Fatalf("app init: %v", err)
+	}
+	defer a.Shutdown(context.Background())
+
+	gw := proxy.NewGateway(a.DB, a.Enc, a.Usage)
+	router := api.NewRouter(a, gw)
+
+	srv := &http.Server{
+		Addr:              ":" + itoa(cfg.Port),
+		Handler:           router,
+		ReadHeaderTimeout: 10 * time.Second,
+	}
+
+	go func() {
+		log.Printf("openteam listening on %s (env=%s)", srv.Addr, cfg.Env)
+		if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
+			log.Fatalf("server: %v", err)
+		}
+	}()
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	log.Println("shutting down...")
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Printf("server shutdown: %v", err)
+	}
+	a.Usage.Close()
+}
+
+func itoa(n int) string {
+	if n == 0 {
+		return "8080"
+	}
+	neg := n < 0
+	if neg {
+		n = -n
+	}
+	var b [12]byte
+	i := len(b)
+	for n > 0 {
+		i--
+		b[i] = byte('0' + n%10)
+		n /= 10
+	}
+	if neg {
+		i--
+		b[i] = '-'
+	}
+	return string(b[i:])
+}