chore: consolidate local integration changes

backend/internal/domain/identity_cache.go

@@ -0,0 +1,19 @@
+package domain
+
+import "time"
+
+type IdentityCacheStatus struct {
+	Status          string     `json:"status"`
+	RedisReady      bool       `json:"redisReady"`
+	ObservedCount   int64      `json:"observedCount"`
+	KeyCount        int64      `json:"keyCount"`
+	LastRefreshedAt *time.Time `json:"lastRefreshedAt,omitempty"`
+	LastError       string     `json:"lastError,omitempty"`
+	UpdatedAt       *time.Time `json:"updatedAt,omitempty"`
+}
+
+type IdentityCacheFlushResult struct {
+	Status      string    `json:"status"`
+	FlushedKeys int64     `json:"flushedKeys"`
+	UpdatedAt   time.Time `json:"updatedAt"`
+}

backend/internal/domain/system_setting.go

@@ -0,0 +1,11 @@
+package domain
+
+import "time"
+
+// SystemSetting stores small global configuration documents.
+type SystemSetting struct {
+	Key       string  `gorm:"primaryKey;size:128" json:"key"`
+	Value     JSONMap `gorm:"type:jsonb" json:"value"`
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}

backend/internal/domain/user.go

@@ -174,13 +174,7 @@ func ValidateLoginID(loginID string, emails []string, phone string) error {
 	}
 
 	if phone != "" {
-		normalizedPhone := strings.ReplaceAll(phone, "-", "")
-		normalizedPhone = strings.ReplaceAll(normalizedPhone, " ", "")
-		if strings.HasPrefix(normalizedPhone, "010") {
-			normalizedPhone = "+82" + normalizedPhone[1:]
-		} else if strings.HasPrefix(normalizedPhone, "82") {
-			normalizedPhone = "+" + normalizedPhone
-		}
+		normalizedPhone := NormalizePhoneNumber(phone)
 
 		if loginID == phone || loginID == normalizedPhone {
 			return fmt.Errorf("ID cannot be the same as the phone number")
@@ -211,3 +205,43 @@ func ValidateLoginID(loginID string, emails []string, phone string) error {
 
 	return nil
 }
+
+func NormalizePhoneNumber(phone string) string {
+	trimmed := strings.TrimSpace(phone)
+	if trimmed == "" {
+		return ""
+	}
+
+	hasLeadingPlus := false
+	digits := strings.Builder{}
+	for _, r := range trimmed {
+		switch {
+		case r >= '0' && r <= '9':
+			digits.WriteRune(r)
+		case r == '+' && digits.Len() == 0 && !hasLeadingPlus:
+			hasLeadingPlus = true
+		}
+	}
+
+	number := digits.String()
+	if number == "" {
+		return ""
+	}
+	if strings.HasPrefix(number, "010") {
+		return "+82" + number[1:]
+	}
+	if strings.HasPrefix(number, "82") {
+		rest := number[2:]
+		for strings.HasPrefix(rest, "82") {
+			rest = rest[2:]
+		}
+		if strings.HasPrefix(rest, "0") {
+			rest = rest[1:]
+		}
+		return "+82" + rest
+	}
+	if hasLeadingPlus {
+		return "+" + number
+	}
+	return number
+}

backend/internal/domain/user_validate_test.go

@@ -39,3 +39,26 @@ func TestValidateLoginID(t *testing.T) {
 		})
 	}
 }
+
+func TestNormalizePhoneNumberDeduplicatesKoreanCountryCode(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want  string
+	}{
+		{"Local mobile", "010-9191-7771", "+821091917771"},
+		{"Korean country code", "+82 10-9191-7771", "+821091917771"},
+		{"Duplicate plus Korean country code", "+82 +821091917771", "+821091917771"},
+		{"Duplicate compact Korean country code", "+82821091917771", "+821091917771"},
+		{"Duplicate spaced Korean country code", "+82 8210 9191 7771", "+821091917771"},
+		{"Non Korean international phone preserved", "+1 914 481 2222", "+19144812222"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NormalizePhoneNumber(tt.input); got != tt.want {
+				t.Fatalf("NormalizePhoneNumber(%q)=%q, want %q", tt.input, got, tt.want)
+			}
+		})
+	}
+}