Add script for converting dump to json

scripts/convert_snapshot_dump_to_json.rb

@@ -0,0 +1,37 @@
+# coding: us-ascii
+# frozen_string_literal: true
+
+require('bundler/setup')
+require_relative('../lib/ulid')
+require_relative('../test/many_data/fixtures/example')
+
+require('time')
+require('json')
+
+converter = Object.new
+
+def converter.serialize_time(time)
+  time.iso8601(3)
+end
+
+def converter.deserialize_time(serialized)
+  Time.iso8601(serialized)
+end
+
+def converter.prepare(value)
+  case value
+  when Time
+    value.iso8601(3)
+  else
+    value
+  end
+end
+
+dump_data = File.binread("#{__dir__}/../test/many_data/fixtures/dumped_fixed_examples_2024-01-10_07-59.bin")
+examples = Marshal.load(dump_data)
+json_prepared = examples.map do |example|
+  example.to_h.except(:period).transform_values { |v| converter.prepare(v) }
+end.sort_by { |e| e.fetch(:integer)}
+
+puts JSON.pretty_generate(json_prepared)
+