simplify task api

priv/repo/migrations/20240101000001_create_tasks.exs

@@ -3,23 +3,20 @@ defmodule WorkloadService.Repo.Migrations.CreateTasks do
 
   def change do
     create table(:tasks, primary_key: false) do
-      add :id, :string, primary_key: true
-      add :org_id, :string, null: false
-      add :application_id, :string, null: false
-      add :provider_id, :string, null: false
-      add :provider_name, :string
-      add :task_info, :map, default: %{}
-      add :submission, :map
-      add :attachments, {:array, :string}, default: []
-      add :status, :string, null: false, default: "created"
-      add :version, :integer, default: 1
+      add(:id, :string, primary_key: true)
+      add(:org_id, :string, null: false)
+      add(:application_id, :string, null: false)
+      add(:task_info, :map, default: %{})
+      add(:submission, :map)
+      add(:attachments, {:array, :string}, default: [])
+      add(:status, :string, null: false, default: "created")
+      add(:version, :integer, default: 1)
 
-      timestamps type: :utc_datetime
+      timestamps(type: :utc_datetime)
     end
 
-    create index(:tasks, [:application_id])
-    create index(:tasks, [:org_id])
-    create index(:tasks, [:provider_id])
-    create index(:tasks, [:status])
+    create(index(:tasks, [:application_id]))
+    create(index(:tasks, [:org_id]))
+    create(index(:tasks, [:status]))
   end
-end
+end