feat: use AprilTag instead of QR code

priv/repo/migrations/20250914164314_drop_qr_code_old_column.exs

@@ -0,0 +1,18 @@
+defmodule ComponentsElixir.Repo.Migrations.DropQrCodeOldColumn do
+  use Ecto.Migration
+
+  def up do
+    # Drop the qr_code_old column since we've fully migrated to AprilTags
+    alter table(:storage_locations) do
+      remove :qr_code_old
+    end
+  end
+
+  def down do
+    # If we need to rollback, re-add the qr_code_old column
+    # Note: This will not restore the original data
+    alter table(:storage_locations) do
+      add :qr_code_old, :string, null: false, default: ""
+    end
+  end
+end