Add author dropdown fields to Avo resources

- Add searchable author dropdown to Article, Term, and FAQ Avo resources
- Maintain existing authorship details in separate tabs
- Enable easy author selection when editing content

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Shpigford

app/avo/resources/article.rb

@@ -15,11 +15,11 @@ def fields
     field :content, as: :easy_mde
     field :publish_at, as: :date_time
     field :author_name, as: :text, hide_on: [ :forms ]
+    field :author, as: :belongs_to, searchable: true, display_with_value: -> { record.name }
 
     tabs do
-      tab "Author" do
+      tab "Author Details" do
         field :authorship, as: :has_one
-        field :author, as: :has_one, through: :authorship
       end
     end
   end

app/avo/resources/faq.rb

@@ -14,11 +14,11 @@ def fields
     field :answer, as: :easy_mde
     field :slug, as: :text
     field :category, as: :select, options: Faq::CATEGORIES
+    field :author, as: :belongs_to, searchable: true, display_with_value: -> { record.name }
 
     tabs do
-      tab "Author" do
+      tab "Author Details" do
         field :authorship, as: :has_one
-        field :author, as: :has_one, through: :authorship
       end
     end
   end

app/avo/resources/term.rb

@@ -14,15 +14,15 @@ def fields
     field :title, as: :text
     field :content, as: :easy_mde
     field :slug, as: :text
+    field :author, as: :belongs_to, searchable: true, display_with_value: -> { record.name }
     field :video_id, as: :text
     field :video_description, as: :textarea
     field :video_upload_date, as: :date
     field :video_duration, as: :text
 
     tabs do
-      tab "Author" do
+      tab "Author Details" do
         field :authorship, as: :has_one
-        field :author, as: :has_one, through: :authorship
       end
     end
   end