Persist pending users when no org exists

src/main/kotlin/com/android/trisolarisserver/models/property/PendingUser.kt

@@ -0,0 +1,33 @@
+package com.android.trisolarisserver.models.property
+
+import jakarta.persistence.Column
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.Id
+import jakarta.persistence.Table
+import jakarta.persistence.UniqueConstraint
+import java.time.OffsetDateTime
+import java.util.UUID
+
+@Entity
+@Table(
+    name = "pending_user",
+    uniqueConstraints = [UniqueConstraint(columnNames = ["firebase_uid"])]
+)
+class PendingUser(
+    @Id
+    @GeneratedValue
+    @Column(columnDefinition = "uuid")
+    val id: UUID? = null,
+
+    @Column(name = "firebase_uid", nullable = false)
+    var firebaseUid: String,
+
+    @Column(name = "phone_e164")
+    var phoneE164: String? = null,
+
+    var name: String? = null,
+
+    @Column(name = "created_at", nullable = false, columnDefinition = "timestamptz")
+    val createdAt: OffsetDateTime = OffsetDateTime.now()
+)