feat(Media): Update attachment handling to return mime_type for unsupported types

Author: crmne

lib/ruby_llm/attachment.rb

@@ -58,8 +58,9 @@ def type
       return :image if image?
       return :audio if audio?
       return :pdf if pdf?
+      return :text if text?
 
-      :text
+      :unknown
     end
 
     def image?

lib/ruby_llm/providers/anthropic/media.rb

@@ -22,7 +22,7 @@ def format_content(content)
             when :text
               parts << format_text_file(attachment)
             else
-              raise UnsupportedAttachmentError, attachment.type
+              raise UnsupportedAttachmentError, attachment.mime_type
             end
           end
 

lib/ruby_llm/providers/gemini/media.rb

@@ -14,12 +14,14 @@ def format_content(content)
           parts << format_text(content.text) if content.text
 
           content.attachments.each do |attachment|
-            parts << case attachment.type
-                     when :text
-                       format_text_file(attachment)
-                     else
-                       format_attachment(attachment)
-                     end
+            case attachment.type
+            when :text
+              parts << format_text_file(attachment)
+            when :unknown
+              raise UnsupportedAttachmentError, attachment.mime_type
+            else
+              parts << format_attachment(attachment)
+            end
           end
 
           parts

lib/ruby_llm/providers/ollama/media.rb

@@ -26,7 +26,7 @@ def format_content(content)
             when :text
               parts << format_text_file(attachment)
             else
-              raise UnsupportedAttachmentError, attachment.type
+              raise UnsupportedAttachmentError, attachment.mime_type
             end
           end