server: Add the PaginatedQuery model

server/app/com/xsn/explorer/models/base/Limit.scala

@@ -0,0 +1,10 @@
+package com.xsn.explorer.models.base
+
+import play.api.libs.json.{JsNumber, Writes}
+
+case class Limit(int: Int) extends AnyVal
+
+object Limit {
+
+  implicit val writes: Writes[Limit] = Writes[Limit] { limit => JsNumber(limit.int) }
+}

server/app/com/xsn/explorer/models/base/Offset.scala

@@ -0,0 +1,10 @@
+package com.xsn.explorer.models.base
+
+import play.api.libs.json.{JsNumber, Writes}
+
+case class Offset(int: Int) extends AnyVal
+
+object Offset {
+
+  implicit val writes: Writes[Offset] = Writes[Offset] { offset => JsNumber(offset.int) }
+}

server/app/com/xsn/explorer/models/base/PaginatedQuery.scala

@@ -0,0 +1,3 @@
+package com.xsn.explorer.models.base
+
+case class PaginatedQuery(offset: Offset, limit: Limit)