initial data model implementation

db/migrate/20260122123833_create_supported_languages.rb

@@ -0,0 +1,15 @@
+class CreateSupportedLanguages < ActiveRecord::Migration[8.1]
+  def change
+    create_table :supported_languages do |t|
+      t.string :code, null: false
+      t.string :name, null: false
+      t.string :native_name, null: false
+      t.integer :sort_order, null: false, default: 0
+      t.boolean :active, null: false, default: true
+
+      t.index :code, unique: true
+
+      t.timestamps
+    end
+  end
+end