feat: create drips table

Author: zcesur

priv/repo/migrations/20250717130936_create_drips_table.exs

@@ -0,0 +1,22 @@
+defmodule Algora.Repo.Migrations.CreateDripsTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:drips, primary_key: false) do
+      add :id, :string, primary_key: true
+      add :user_ids, {:array, :string}, null: false
+      add :org_id, references(:users, type: :string), null: false
+      add :subject, :string
+      add :body, :text
+      add :email_addresses, {:array, :string}
+      add :image_url, :string
+      add :sent_at, :utc_datetime
+
+      timestamps()
+    end
+
+    create index(:drips, [:org_id])
+    create index(:drips, [:sent_at])
+    create index(:drips, [:user_ids], using: :gin)
+  end
+end