feat: closing last gaps in backend functions we have available

priv/repo/migrations/20260424100817_add_backend_spec_compliance_persistence.exs

@@ -0,0 +1,34 @@
+defmodule BDS.Repo.Migrations.AddBackendSpecCompliancePersistence do
+  use Ecto.Migration
+
+  def change do
+    create table(:publish_jobs, primary_key: false) do
+      add :id, :string, primary_key: true
+      add :project_id, references(:projects, type: :string, on_delete: :delete_all), null: false
+      add :ssh_host, :string, null: false
+      add :ssh_user, :string, null: false
+      add :ssh_remote_path, :string, null: false
+      add :ssh_mode, :string, null: false
+      add :status, :string, null: false, default: "pending"
+      add :task_id, :string
+      add :targets, {:array, :string}, null: false, default: []
+      add :error, :text
+      add :inserted_at, :integer, null: false
+      add :updated_at, :integer, null: false
+    end
+
+    create table(:mcp_proposals, primary_key: false) do
+      add :id, :string, primary_key: true
+      add :kind, :string, null: false
+      add :status, :string, null: false, default: "pending"
+      add :entity_id, :string, null: false
+      add :data, :map, null: false
+      add :created_at, :integer, null: false
+      add :expires_at, :integer, null: false
+    end
+
+    create unique_index(:mcp_proposals, [:kind, :entity_id, :status],
+             name: :mcp_proposals_entity_idx
+           )
+  end
+end