LG-13233: add sponsor_id to in_person_enrollments model (18F#10759)

* feat: add sponsor_id to in_person_enrollments

* changelog: Upcoming Features, In-person proofing, persist sponsor_id on in_person_enrollments

* feat: add comment for new sponsor_id field

db/primary_migrate/20240604173515_add_sponsor_id_to_in_person_enrollment.rb

@@ -0,0 +1,5 @@
+class AddSponsorIdToInPersonEnrollment < ActiveRecord::Migration[7.1]
+  def change
+    add_column :in_person_enrollments, :sponsor_id, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_05_31_175935) do
+ActiveRecord::Schema[7.1].define(version: 2024_06_04_173515) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "citext"
   enable_extension "pg_stat_statements"
@@ -318,6 +318,7 @@
     t.boolean "ready_for_status_check", default: false
     t.datetime "notification_sent_at", comment: "The time a notification was sent"
     t.datetime "last_batch_claimed_at"
+    t.string "sponsor_id", comment: "The identification number for USPS to recognize us and our flow (ex: Enhanced IPP)"
     t.index ["profile_id"], name: "index_in_person_enrollments_on_profile_id"
     t.index ["ready_for_status_check"], name: "index_in_person_enrollments_on_ready_for_status_check", where: "(ready_for_status_check = true)"
     t.index ["status_check_attempted_at"], name: "index_in_person_enrollments_on_status_check_attempted_at", where: "(status = 1)"