feat: add runtime log level settings

src/model/dao/mdb_table_init.go

@@ -162,6 +162,7 @@ func seedDefaultSettings() {
 	}
 	defaults := []mdb.Setting{
 		{Group: mdb.SettingGroupSystem, Key: mdb.SettingKeyAmountPrecision, Value: "2", Type: mdb.SettingTypeInt},
+		{Group: mdb.SettingGroupSystem, Key: mdb.SettingKeySystemLogLevel, Value: mdb.SettingDefaultSystemLogLevel, Type: mdb.SettingTypeString},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultToken, Value: "usdt", Type: mdb.SettingTypeString},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultCurrency, Value: "cny", Type: mdb.SettingTypeString},
 		{Group: mdb.SettingGroupEpay, Key: mdb.SettingKeyEpayDefaultNetwork, Value: "tron", Type: mdb.SettingTypeString},

src/model/dao/mdb_table_init_test.go

@@ -1,9 +1,13 @@
 package dao
 
 import (
+	"path/filepath"
 	"testing"
 
 	"github.com/GMWalletApp/epusdt/model/mdb"
+	"github.com/libtnb/sqlite"
+	"github.com/spf13/viper"
+	"gorm.io/gorm"
 )
 
 func TestDefaultRpcNodesIncludesManualVerifyEpusdtEvmNodes(t *testing.T) {
@@ -69,3 +73,67 @@ func TestDefaultRpcNodesIncludesTonLiteGeneralNode(t *testing.T) {
 		t.Fatalf("TON lite seed status = %q, want %q", got.Status, mdb.RpcNodeStatusUnknown)
 	}
 }
+
+func TestSeedDefaultSettingsIncludesSystemLogLevel(t *testing.T) {
+	db := setupSeedSettingsTestDB(t)
+	Mdb = db
+
+	seedDefaultSettings()
+
+	var row mdb.Setting
+	if err := Mdb.Where("`key` = ?", mdb.SettingKeySystemLogLevel).Take(&row).Error; err != nil {
+		t.Fatalf("load system.log_level seed: %v", err)
+	}
+	if row.Group != mdb.SettingGroupSystem {
+		t.Fatalf("system.log_level group = %q, want %q", row.Group, mdb.SettingGroupSystem)
+	}
+	if row.Value != mdb.SettingDefaultSystemLogLevel {
+		t.Fatalf("system.log_level value = %q, want %q", row.Value, mdb.SettingDefaultSystemLogLevel)
+	}
+	if row.Type != mdb.SettingTypeString {
+		t.Fatalf("system.log_level type = %q, want %q", row.Type, mdb.SettingTypeString)
+	}
+}
+
+func TestSeedDefaultSettingsDoesNotOverwriteSystemLogLevel(t *testing.T) {
+	db := setupSeedSettingsTestDB(t)
+	Mdb = db
+	if err := Mdb.Create(&mdb.Setting{
+		Group: mdb.SettingGroupSystem,
+		Key:   mdb.SettingKeySystemLogLevel,
+		Value: "debug",
+		Type:  mdb.SettingTypeString,
+	}).Error; err != nil {
+		t.Fatalf("precreate system.log_level: %v", err)
+	}
+
+	seedDefaultSettings()
+
+	var row mdb.Setting
+	if err := Mdb.Where("`key` = ?", mdb.SettingKeySystemLogLevel).Take(&row).Error; err != nil {
+		t.Fatalf("load system.log_level seed: %v", err)
+	}
+	if row.Value != "debug" {
+		t.Fatalf("system.log_level value = %q, want existing debug", row.Value)
+	}
+}
+
+func setupSeedSettingsTestDB(t *testing.T) *gorm.DB {
+	t.Helper()
+	oldDB := Mdb
+	viper.Reset()
+	viper.Set("app_uri", "https://example.com")
+	t.Cleanup(func() {
+		Mdb = oldDB
+		viper.Reset()
+	})
+
+	db, err := gorm.Open(sqlite.Open(filepath.Join(t.TempDir(), "seed-settings.db")), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open sqlite: %v", err)
+	}
+	if err := db.AutoMigrate(&mdb.Setting{}); err != nil {
+		t.Fatalf("migrate settings: %v", err)
+	}
+	return db
+}

src/model/mdb/settings.go

@@ -4,10 +4,10 @@ package mdb
 // Groups: brand, rate, system, epay, okpay. Merchant credentials (pid +
 // secret_key) live in the api_keys table; notification configs live in
 // NotificationChannel.
-// Default rows for the epay/okpay groups are seeded on first startup (see
-// model/dao/mdb_table_init.go seedDefaultSettings). All other groups start
-// empty and fall back to hardcoded defaults until an admin sets them.
-// Only exception: system.jwt_secret is auto-generated on first startup.
+// Default rows for the system/epay/okpay groups are seeded on first startup
+// (see model/dao/mdb_table_init.go seedDefaultSettings). Other groups start
+// empty and fall back to hardcoded defaults until an admin sets them. The
+// system.jwt_secret key is auto-generated on first startup.
 const (
 	SettingGroupBrand  = "brand"
 	SettingGroupRate   = "rate"
@@ -31,6 +31,7 @@ const (
 	SettingKeyInitAdminPasswordChanged = "system.init_admin_password_changed"
 	SettingKeyOrderExpiration          = "system.order_expiration_time"
 	SettingKeyAmountPrecision          = "system.amount_precision"
+	SettingKeySystemLogLevel           = "system.log_level"
 	SettingKeyBrandCheckoutName        = "brand.checkout_name"
 	SettingKeyBrandSiteName            = "brand.site_name"
 	SettingKeyBrandLogoUrl             = "brand.logo_url"
@@ -62,6 +63,10 @@ const (
 	SettingKeyOkPayAllowTokens    = "okpay.allow_tokens"
 )
 
+const (
+	SettingDefaultSystemLogLevel = "error"
+)
+
 type Setting struct {
 	Group       string `gorm:"column:group;size:32;index:settings_group_index" json:"group" enums:"brand,rate,system,epay,okpay" example:"rate"`
 	Key         string `gorm:"column:key;uniqueIndex:settings_key_uindex;size:128" json:"key" example:"rate.forced_rate_list"`