Much base work started

db/migrate/20251029113830_create_external_ids.rb

@@ -0,0 +1,11 @@
+class CreateExternalIds < ActiveRecord::Migration[8.1]
+  def change
+    create_table :external_ids do |t|
+      t.references :work, null: false, foreign_key: true
+      t.integer :source
+      t.string :value
+
+      t.timestamps
+    end
+  end
+end