self review changes

lib/custom_exceptions/pdf_processing_error.rb

@@ -1,23 +1,25 @@
-class PdfProcessingError < CustomExceptions::Base
-  def initialize(message = 'PDF processing failed')
-    super(message)
+module CustomExceptions
+  class PdfProcessingError < Base
+    def initialize(message = 'PDF processing failed')
+      super(message)
+    end
   end
-end
 
-class PdfUploadError < PdfProcessingError
-  def initialize(message = 'PDF upload failed')
-    super(message)
+  class PdfUploadError < PdfProcessingError
+    def initialize(message = 'PDF upload failed')
+      super(message)
+    end
   end
-end
 
-class PdfValidationError < PdfProcessingError
-  def initialize(message = 'PDF validation failed')
-    super(message)
+  class PdfValidationError < PdfProcessingError
+    def initialize(message = 'PDF validation failed')
+      super(message)
+    end
   end
-end
 
-class PdfFaqGenerationError < PdfProcessingError
-  def initialize(message = 'PDF FAQ generation failed')
-    super(message)
+  class PdfFaqGenerationError < PdfProcessingError
+    def initialize(message = 'PDF FAQ generation failed')
+      super(message)
+    end
   end
 end