add ruby gemspec

Author: sacha-ichbiah

clients/ruby/.oagen-manifest.json

@@ -1,7 +1,7 @@
 {
   "version": 2,
   "language": "ruby",
-  "generatedAt": "2026-06-19T13:01:03.077Z",
+  "generatedAt": "2026-06-19T19:55:35.986Z",
   "files": [
     "Gemfile",
     "lib/retab.rb",

clients/ruby/Gemfile

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+# This file is auto-generated by oagen. Do not edit.
+
+# @oagen-ignore-file
+
+source 'https://rubygems.org'
+
+gemspec
+
+group :development, :test do
+  gem 'minitest', '~> 5.20'
+  gem 'webmock', '~> 3.20'
+end

clients/ruby/retab.gemspec

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+# This file is auto-generated by oagen. Do not edit.
+
+# @oagen-ignore-file
+#
+# Hand-maintained gemspec. The generator scaffolds this on first run and
+# then leaves it alone; subsequent dependency, version, or metadata changes
+# are manual.
+
+Gem::Specification.new do |spec|
+  spec.name = 'retab'
+  spec.version = '0.1.0'
+  spec.authors = ['Retab']
+  spec.email = ['support@retab.com']
+
+  spec.summary = 'Retab Ruby SDK'
+  spec.description = 'Official Ruby client for the Retab API.'
+  spec.homepage = 'https://retab.com'
+  spec.license = 'MIT'
+
+  spec.required_ruby_version = '>= 3.0.0'
+
+  spec.files = Dir['lib/**/*.rb', 'rbi/**/*.rbi', 'README.md', 'LICENSE']
+  spec.require_paths = ['lib']
+
+  spec.add_dependency 'base64', '~> 0.2'
+  spec.add_dependency 'zeitwerk', '~> 2.6'
+
+  spec.metadata = {
+    'homepage_uri' => spec.homepage,
+    'source_code_uri' => 'https://github.com/Retab-dev/retab',
+    'rubygems_mfa_required' => 'true',
+  }
+end