feat: 完成模拟交易闭环、App 与 A 股行情接入

统一单入口 Go 工程与前端依赖目录，增加后台供应商配置、候选审核、计划预算、成交冲正、持仓复盘和站内通知。接入策略版本、Python 回测、可配置 A 股公开行情及 zap 文件轮转日志，补充迁移、契约与验证。

internal/config/config.go

@@ -4,6 +4,7 @@ package config
 import (
 	"bufio"
 	"fmt"
+	"git.sundynix.cn/Blizzard/Veyra/internal/logging"
 	"net"
 	"net/url"
 	"os"
@@ -12,9 +13,12 @@ import (
 )
 
 type Config struct {
+	PythonExecutable                                                           string
+	Logging                                                                    logging.Options
 	Environment, HTTPAddr                                                      string
 	PGHost, PGPort, PGDatabase, PGUser, PGPassword, PGSSLMode, PGAdminDatabase string
 	RedisAddr, RedisUsername, RedisPassword                                    string
+	SecretEncryptionKey                                                        string
 	RedisDB                                                                    int
 }
 
@@ -57,6 +61,18 @@ func LoadEnvFile(path string) error {
 
 func Load() (Config, error) {
 	c := Config{Environment: env("APP_ENV", "local"), HTTPAddr: env("HTTP_ADDR", "127.0.0.1:8080"), PGHost: env("PGHOST", "192.168.100.127"), PGPort: env("PGPORT", "5432"), PGDatabase: env("PGDATABASE", "veyra"), PGUser: os.Getenv("PGUSER"), PGPassword: os.Getenv("PGPASSWORD"), PGSSLMode: env("PGSSLMODE", "disable"), PGAdminDatabase: env("PGADMIN_DATABASE", "postgres"), RedisAddr: env("REDIS_ADDR", "192.168.100.127:6379"), RedisUsername: os.Getenv("REDIS_USERNAME"), RedisPassword: os.Getenv("REDIS_PASSWORD")}
+	c.PythonExecutable = env("PYTHON_EXECUTABLE", "python3")
+	c.Logging = logging.Options{Directory: env("LOG_DIR", "logs"), Level: env("LOG_LEVEL", "info"), MaxSizeMB: 50, MaxBackups: 10, MaxAgeDays: 14}
+	for key, dest := range map[string]*int{"LOG_MAX_SIZE_MB": &c.Logging.MaxSizeMB, "LOG_MAX_BACKUPS": &c.Logging.MaxBackups, "LOG_MAX_AGE_DAYS": &c.Logging.MaxAgeDays} {
+		if value := os.Getenv(key); value != "" {
+			n, err := strconv.Atoi(value)
+			if err != nil || n < 1 {
+				return Config{}, fmt.Errorf("%s must be a positive integer", key)
+			}
+			*dest = n
+		}
+	}
+	c.SecretEncryptionKey = os.Getenv("SECRET_ENCRYPTION_KEY")
 	var err error
 	c.RedisDB, err = strconv.Atoi(env("REDIS_DB", "0"))
 	if err != nil || c.RedisDB < 0 {
@@ -82,7 +98,7 @@ func Load() (Config, error) {
 
 func (c Config) ValidateDatabase() error {
 	if c.PGUser == "" {
-		return fmt.Errorf("PGUSER is required; configure the local .env file")
+		return fmt.Errorf("PGUSER is required; configure the local configs/.env file")
 	}
 	if c.PGHost == "" || c.PGDatabase == "" || c.PGAdminDatabase == "" {
 		return fmt.Errorf("database host and names are required")