feat: start on AI integration

lib/bds/ai/catalog_provider.ex

@@ -0,0 +1,23 @@
+defmodule BDS.AI.CatalogProvider do
+  @moduledoc false
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :string, autogenerate: false}
+
+  schema "ai_providers" do
+    field :name, :string
+    field :env_keys, :string, source: :env
+    field :package_ref, :string
+    field :api_url, :string, source: :api
+    field :doc_url, :string, source: :doc
+    field :updated_at, :integer
+  end
+
+  def changeset(provider, attrs) do
+    provider
+    |> cast(attrs, [:id, :name, :env_keys, :package_ref, :api_url, :doc_url, :updated_at], empty_values: [nil])
+    |> validate_required([:id, :name, :updated_at])
+  end
+end