feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

app/models/authidentity/sign_logs.go

@@ -0,0 +1,50 @@
+package authidentity
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+	"time"
+)
+
+// SignLogs holds login history (log entries and sign-in count).
+type SignLogs struct {
+	Log         string `sql:"-"`
+	SignInCount uint
+	Logs        []SignLog
+}
+
+// Scan implements sql.Scanner for deserializing SignLogs from JSON.
+func (signLogs *SignLogs) Scan(data interface{}) (err error) {
+	switch values := data.(type) {
+	case []byte:
+		if len(values) != 0 {
+			return json.Unmarshal(values, signLogs)
+		}
+	case string:
+		return signLogs.Scan([]byte(values))
+	case []string:
+		for _, str := range values {
+			if err := signLogs.Scan(str); err != nil {
+				return err
+			}
+		}
+	default:
+		err = errors.New("unsupported driver -> Scan pair for SignLogs")
+	}
+
+	return
+}
+
+// Value implements driver.Valuer for serializing SignLogs to JSON.
+func (signLogs SignLogs) Value() (driver.Value, error) {
+	results, err := json.Marshal(signLogs)
+	return string(results), err
+}
+
+// SignLog represents a single login event entry.
+type SignLog struct {
+	UserAgent string
+	At        *time.Time
+	IP        string
+}