CASTKIT-1: Fix BooleanValidator and tests

.rspec_status

@@ -154,6 +154,11 @@ example_id                                                    | status | run_tim
 ./spec/castkit/ext/data_object/serialization_spec.rb[1:3:1]   | passed | 0.00004 seconds |
 ./spec/castkit/ext/data_object/serialization_spec.rb[1:4:1]   | passed | 0.00003 seconds |
 ./spec/castkit/ext/data_object/serialization_spec.rb[1:4:2]   | passed | 0.00003 seconds |
+./spec/castkit/validators/boolean_validator_spec.rb[1:1:1]    | passed | 0.00054 seconds |
+./spec/castkit/validators/boolean_validator_spec.rb[1:1:2]    | passed | 0.00004 seconds |
+./spec/castkit/validators/boolean_validator_spec.rb[1:1:3]    | passed | 0.00003 seconds |
+./spec/castkit/validators/boolean_validator_spec.rb[1:1:4]    | passed | 0.00068 seconds |
+./spec/castkit/validators/boolean_validator_spec.rb[1:2:1]    | passed | 0.00004 seconds |
 ./spec/castkit/validators/numeric_validator_spec.rb[1:1:1:1]  | passed | 0.00005 seconds |
 ./spec/castkit/validators/numeric_validator_spec.rb[1:1:2:1]  | passed | 0.00009 seconds |
 ./spec/castkit/validators/numeric_validator_spec.rb[1:1:3:1]  | passed | 0.00003 seconds |

lib/castkit/validators/boolean_validator.rb

@@ -16,15 +16,15 @@ module Validators
     #   validator.call("true", _options: {}, context: :enabled) # => true
     #   validator.call("0", _options: {}, context: :enabled)    # => false
     #   validator.call("nope", _options: {}, context: :enabled) # raises Castkit::AttributeError
-    class BooleanValidator
+    class BooleanValidator < Castkit::Validators::Base
       # Validates the Boolean value.
       #
       # @param value [Object] the input to validate
-      # @param _options [Hash] unused, provided for consistency with other validators
+      # @param options [Hash] unused, provided for consistency with other validators
       # @param context [Symbol, String] the attribute name or path for error messages
       # @return [Boolean]
       # @raise [Castkit::AttributeError] if the value is not a recognizable boolean
-      def call(value, _options:, context:)
+      def call(value, options:, context:) # rubocop:disable Lint/UnusedMethodArgument
         case value.to_s.downcase
         when "true", "1"
           true

spec/castkit/validators/boolean_validator_spec.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "castkit/validators/boolean_validator"
+
+RSpec.describe Castkit::Validators::BooleanValidator do
+  subject(:validator) { described_class.new }
+
+  describe "#call" do
+    it "returns true for truthy strings" do
+      expect(validator.call("true", options: {}, context: :enabled)).to be(true)
+    end
+
+    it "returns true for actual booleans" do
+      expect(validator.call(true, options: {}, context: :enabled)).to be(true)
+    end
+
+    it "returns false for falsy numeric strings" do
+      expect(validator.call("0", options: {}, context: :enabled)).to be(false)
+    end
+
+    it "raises for unrecognized values" do
+      expect do
+        validator.call("maybe", options: {}, context: :enabled)
+      end.to raise_error(Castkit::AttributeError, /enabled must be a boolean/)
+    end
+  end
+
+  describe ".call" do
+    it "instantiates and validates via class-level call" do
+      expect(described_class.call("1", options: {}, context: :enabled)).to be(true)
+    end
+  end
+end