feat: 添加环境变量管理工具和部署配置改版

主要改动：
- 新增交互式环境配置脚本 (scripts/setup-env.sh)
- 新增本地启动快捷脚本 (scripts/run-local.sh)
- 新增环境变量模板文件 (.env.example)
- 部署模式改版：使用嵌入式配置 + 环境变量覆盖
- 添加对象存储功能支持
- 改进 IoT 卡片导入任务
- 优化 OpenAPI 文档生成
- 删除旧的配置文件，改用嵌入式默认配置

pkg/config/loader.go

@@ -2,92 +2,120 @@ package config
 
 import (
 	"fmt"
-	"os"
-	"path/filepath"
+	"strings"
 
-	"github.com/break/junhong_cmp_fiber/pkg/constants"
 	"github.com/spf13/viper"
 )
 
-// Load 从文件和环境变量加载配置
+const envPrefix = "JUNHONG"
+
 func Load() (*Config, error) {
-	// 确定配置路径
-	configPath := os.Getenv(constants.EnvConfigPath)
-	if configPath == "" {
-		configPath = constants.DefaultConfigPath
-	}
+	v := viper.New()
 
-	// 检查环境特定配置（dev, staging, prod）
-	configEnv := os.Getenv(constants.EnvConfigEnv)
-	if configEnv != "" {
-		// 优先尝试环境特定配置
-		envConfigPath := fmt.Sprintf("configs/config.%s.yaml", configEnv)
-		if _, err := os.Stat(envConfigPath); err == nil {
-			configPath = envConfigPath
-		}
-	}
-
-	// 设置 Viper
-	viper.SetConfigFile(configPath)
-	viper.SetConfigType("yaml")
-
-	// 启用环境变量覆盖
-	viper.AutomaticEnv()
-	viper.SetEnvPrefix("APP")
-
-	// 读取配置文件
-	if err := viper.ReadInConfig(); err != nil {
-		return nil, fmt.Errorf("failed to read config file: %w", err)
-	}
-
-	// 反序列化到 Config 结构体
-	cfg := &Config{}
-	if err := viper.Unmarshal(cfg); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal config: %w", err)
-	}
-
-	// 验证配置
-	if err := cfg.Validate(); err != nil {
-		return nil, err
-	}
-
-	// 设为全局配置
-	globalConfig.Store(cfg)
-
-	return cfg, nil
-}
-
-// Reload 重新加载当前配置文件
-func Reload() (*Config, error) {
-	if err := viper.ReadInConfig(); err != nil {
-		return nil, fmt.Errorf("failed to reload config: %w", err)
-	}
-
-	cfg := &Config{}
-	if err := viper.Unmarshal(cfg); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal config: %w", err)
-	}
-
-	// 设置前验证
-	if err := cfg.Validate(); err != nil {
-		return nil, err
-	}
-
-	// 原子交换
-	globalConfig.Store(cfg)
-
-	return cfg, nil
-}
-
-// GetConfigPath 返回当前已加载配置文件的绝对路径
-func GetConfigPath() string {
-	configFile := viper.ConfigFileUsed()
-	if configFile == "" {
-		return ""
-	}
-	absPath, err := filepath.Abs(configFile)
+	embeddedReader, err := getEmbeddedConfig()
 	if err != nil {
-		return configFile
+		return nil, fmt.Errorf("读取嵌入配置失败: %w", err)
+	}
+
+	v.SetConfigType("yaml")
+	if err := v.ReadConfig(embeddedReader); err != nil {
+		return nil, fmt.Errorf("解析嵌入配置失败: %w", err)
+	}
+
+	v.SetEnvPrefix(envPrefix)
+	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
+	v.AutomaticEnv()
+
+	bindEnvVariables(v)
+
+	cfg := &Config{}
+	if err := v.Unmarshal(cfg); err != nil {
+		return nil, fmt.Errorf("反序列化配置失败: %w", err)
+	}
+
+	if err := cfg.ValidateRequired(); err != nil {
+		return nil, err
+	}
+
+	if err := cfg.Validate(); err != nil {
+		return nil, err
+	}
+
+	globalConfig.Store(cfg)
+
+	return cfg, nil
+}
+
+func bindEnvVariables(v *viper.Viper) {
+	bindings := []string{
+		"server.address",
+		"server.read_timeout",
+		"server.write_timeout",
+		"server.shutdown_timeout",
+		"server.prefork",
+		"database.host",
+		"database.port",
+		"database.user",
+		"database.password",
+		"database.dbname",
+		"database.sslmode",
+		"database.max_open_conns",
+		"database.max_idle_conns",
+		"database.conn_max_lifetime",
+		"redis.address",
+		"redis.port",
+		"redis.password",
+		"redis.db",
+		"redis.pool_size",
+		"redis.min_idle_conns",
+		"redis.dial_timeout",
+		"redis.read_timeout",
+		"redis.write_timeout",
+		"storage.provider",
+		"storage.temp_dir",
+		"storage.s3.endpoint",
+		"storage.s3.region",
+		"storage.s3.bucket",
+		"storage.s3.access_key_id",
+		"storage.s3.secret_access_key",
+		"storage.s3.use_ssl",
+		"storage.s3.path_style",
+		"storage.presign.upload_expires",
+		"storage.presign.download_expires",
+		"logging.level",
+		"logging.development",
+		"logging.app_log.filename",
+		"logging.app_log.max_size",
+		"logging.app_log.max_backups",
+		"logging.app_log.max_age",
+		"logging.app_log.compress",
+		"logging.access_log.filename",
+		"logging.access_log.max_size",
+		"logging.access_log.max_backups",
+		"logging.access_log.max_age",
+		"logging.access_log.compress",
+		"queue.concurrency",
+		"queue.retry_max",
+		"queue.timeout",
+		"jwt.secret_key",
+		"jwt.token_duration",
+		"jwt.access_token_ttl",
+		"jwt.refresh_token_ttl",
+		"middleware.enable_rate_limiter",
+		"middleware.rate_limiter.max",
+		"middleware.rate_limiter.expiration",
+		"middleware.rate_limiter.storage",
+		"sms.gateway_url",
+		"sms.username",
+		"sms.password",
+		"sms.signature",
+		"sms.timeout",
+		"default_admin.username",
+		"default_admin.password",
+		"default_admin.phone",
+	}
+
+	for _, key := range bindings {
+		_ = v.BindEnv(key)
 	}
-	return absPath
 }