新增 Web 浏览端(Go+Vue 报表系统)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/backend/internal/config/config.go

@@ -0,0 +1,39 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+type Config struct {
+	ListenAddr     string
+	FuturesDBPath  string
+	AuthDBPath     string
+	JWTSecret      []byte
+	AdminUser      string
+	AdminPass      string
+}
+
+func Load() (*Config, error) {
+	cfg := &Config{
+		ListenAddr:    getenv("LISTEN_ADDR", ":8080"),
+		FuturesDBPath: getenv("FUTURES_DB_PATH", "/app/data/futures.db"),
+		AuthDBPath:    getenv("AUTH_DB_PATH", "/app/auth/auth.db"),
+		AdminUser:     strings.TrimSpace(os.Getenv("ADMIN_USER")),
+		AdminPass:     os.Getenv("ADMIN_PASS"),
+	}
+	secret := strings.TrimSpace(os.Getenv("JWT_SECRET"))
+	if len(secret) < 16 {
+		return nil, fmt.Errorf("JWT_SECRET 必须至少 16 个字符 (建议 openssl rand -hex 32)")
+	}
+	cfg.JWTSecret = []byte(secret)
+	return cfg, nil
+}
+
+func getenv(key, fallback string) string {
+	if v, ok := os.LookupEnv(key); ok && v != "" {
+		return v
+	}
+	return fallback
+}