feat: get all links clicks join

app/serializers/click.cr

@@ -0,0 +1,22 @@
+require "json"
+
+require "../models/click"
+
+module App::Serializers
+  class Click
+    def initialize(@click : App::Models::Click)
+    end
+
+    def to_json(builder : JSON::Builder)
+      builder.object do
+        builder.field("id", @click.id)
+        builder.field("user_agent", @click.user_agent)
+        builder.field("language", @click.language)
+        builder.field("browser", @click.browser)
+        builder.field("os", @click.os)
+        builder.field("source", @click.source)
+        builder.field("created_at", @click.created_at)
+      end
+    end
+  end
+end

app/serializers/link.cr

@@ -1,6 +1,7 @@
 require "json"
 
 require "../models/link"
+require "./click"
 
 module App::Serializers
   class Link
@@ -15,6 +16,7 @@ module App::Serializers
         builder.field("id", @link.id)
         builder.field("refer", @refer)
         builder.field("origin", @link.url)
+        builder.field("clicks", @link.clicks.map { |click| App::Serializers::Click.new(click) })
       end
     end
   end