Add nhs_immunisations_api_etag to vaccinations

These will be used when updating or deleting later.

Jira-Issue: MAV-1477

Author: misaka

app/models/vaccination_record.rb

@@ -12,6 +12,7 @@
 #  dose_sequence                   :integer
 #  full_dose                       :boolean
 #  location_name                   :string
+#  nhs_immunisations_api_etag      :string
 #  nhs_immunisations_api_synced_at :datetime
 #  notes                           :text
 #  outcome                         :integer          not null

db/migrate/20250630140421_add_nhs_immunisations_api_etag_to_vaccination_record.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class AddNHSImmunisationsAPIEtagToVaccinationRecord < ActiveRecord::Migration[
+  8.0
+]
+  def change
+    add_column :vaccination_records,
+               :nhs_immunisations_api_etag,
+               :string,
+               null: true
+  end
+end

db/schema.rb

@@ -822,6 +822,7 @@
     t.boolean "full_dose"
     t.datetime "nhs_immunisations_api_synced_at"
     t.string "nhs_immunisations_api_id"
+    t.string "nhs_immunisations_api_etag"
     t.index ["batch_id"], name: "index_vaccination_records_on_batch_id"
     t.index ["discarded_at"], name: "index_vaccination_records_on_discarded_at"
     t.index ["nhs_immunisations_api_id"], name: "index_vaccination_records_on_nhs_immunisations_api_id", unique: true

spec/factories/vaccination_records.rb

@@ -12,6 +12,7 @@
 #  dose_sequence                   :integer
 #  full_dose                       :boolean
 #  location_name                   :string
+#  nhs_immunisations_api_etag      :string
 #  nhs_immunisations_api_synced_at :datetime
 #  notes                           :text
 #  outcome                         :integer          not null

spec/models/vaccination_record_spec.rb

@@ -12,6 +12,7 @@
 #  dose_sequence                   :integer
 #  full_dose                       :boolean
 #  location_name                   :string
+#  nhs_immunisations_api_etag      :string
 #  nhs_immunisations_api_synced_at :datetime
 #  notes                           :text
 #  outcome                         :integer          not null