Update eligibility screens for flu and covid (#395)

This updates the eligibility screens for COVID-19 and Flu ready for the
upcoming Autumn/Winter 2025-2026 period.

The eligibility options for the COVID-19 vaccine have been reduced, see
[guidance letter from NHS
England](https://www.england.nhs.uk/long-read/flu-and-covid-19-seasonal-vaccination-programme-autumn-winter-2025-26/).

For flu, we no longer need to based our eligibility options on the
Extended Attributes specification, as this will no longer be used, so we
have taken the opportunity to rationalise the options slightly, with "In
a critical risk group" covering "Immunosuppressed" and "Has had CAR-T
therapy".

This also adds in the additional flu eligibility criteria which would
only be shown to London pharmacies participating in the London flu
vaccination programme, which adds some additional eligibility groups.

## Screenshots

|  | Before | After |
|--|--------|-------|
| Flu | <img width="1706" height="1739" alt="flu-before"
src="https://github.com/user-attachments/assets/160481fb-f605-4fca-b9b5-a3c0bb29adad"
/> | <img width="1625" height="2443" alt="flu-after"
src="https://github.com/user-attachments/assets/c2a7c9d5-410a-4e70-bf58-84e1447779c3"
/> |
| COVID-19 | <img width="880" height="918" alt="covid-before"
src="https://github.com/user-attachments/assets/982a059c-96ed-4724-9722-cceaedc4a76f"
/> | <img width="656" height="422" alt="covid-after"
src="https://github.com/user-attachments/assets/c19d033f-0971-4594-9835-391c32a927f5"
/> |

Author: frankieroberto

app/views/record-vaccinations/eligibility.html

@@ -8,6 +8,42 @@
   {{ backLink({ href: "/record-vaccinations/batch" }) }}
 {% endblock %}
 
+{% set CovidEligibilityOptions = [
+  "Resident in a care home",
+  "Aged 75 and over, and not in a care home",
+  "Immunosuppressed"
+] %}
+
+{% set RSVEligibilityOptions = [
+  "Aged 75 to 80",
+  "Pregnant"
+] %}
+
+{% set NationalFluEligibilityOptions = [
+  "Based on age",
+  "Healthcare worker",
+  "Pregnant",
+  "In a clinical risk group",
+  "Resident in a care home",
+  "Carer",
+  "Social care worker",
+  "Household contact of someone immunosuppressed"
+] %}
+
+{% set londonFluEligibilityOptions = [
+  "Homeless",
+  "Gypsy, Roma and Traveller communities",
+  "Sex worker",
+  "Learning disability",
+  "Mental health condition",
+  "In a detained estate or in contact with justice system",
+  "Migrant or asylum seeker",
+  "Victim of modern slavery",
+  "Drug or alcohol dependency",
+  "Another health exclusion group based on local need",
+  "Healthcare worker not covered by national criteria"
+] %}
+
 {% block content %}
   <div class="nhsuk-grid-row">
     <div class="nhsuk-grid-column-two-thirds">
@@ -21,86 +57,73 @@
 
       <form action="/record-vaccinations/answer-eligibility" method="post" novalidate>
 
-      {% if data.vaccine == "COVID-19" %}
-        {% set eligibilityOptions = [
-          "Resident in a care home",
-          "Staff in a care home",
-          "Healthcare worker",
-          "Social care worker",
-          "Based on age",
-          "Pregnant",
-          "Immunosuppressed",
-          "In a clinical risk group",
-          "Homeless or living in a closed setting",
-          "Household contact of someone immunosuppressed",
-          "Carer",
-          "Has had CAR-T therapy or a stem cell transplant since their last vaccination"
-        ] %}
-      {% elif data.vaccine == "flu" %}
-        {% set eligibilityOptions = [
-          "Resident in a care home",
-          "Staff in a care home",
-          "Healthcare worker",
-          "Social worker",
-          "Based on age",
-          "Pregnant",
-          "Immunosuppressed",
-          "In a clinical risk group",
-          "Household contact of someone immunosuppressed",
-          "Carer",
-          "Has had CAR-T therapy or a stem cell transplant since their last vaccination"
-        ] %}
-      {% elif data.vaccine == "RSV" %}
-        {% set eligibilityOptions = [
-          "Aged 75 to 80",
-          "Pregnant"
-        ] %}
-      {% else %}
-        {% set eligibilityOptions = [] %}
-      {% endif %}
+        {% if data.vaccine == "COVID-19" %}
+          {% set eligibilityOptions = CovidEligibilityOptions %}
+        {% elif data.vaccine == "flu" %}
+          {% set eligibilityOptions = NationalFluEligibilityOptions %}
+        {% elif data.vaccine == "RSV" %}
+          {% set eligibilityOptions = RSVEligibilityOptions %}
+        {% else %}
+          {% set eligibilityOptions = [] %}
+        {% endif %}
 
-      {% set items = [] %}
-      {% for option in eligibilityOptions %}
-        {% set items = (items.push({
-          text: option,
-          value: option,
-          checked: (data.eligibility | arrayOrStringIncludes(option))
-          }), items) %}
-      {% endfor %}
-
-      {% if data.vaccine == "RSV" %}
-        {{ radios({
-          idPrefix: "eligibility",
-          name: "eligibility",
-          fieldset: {
-            legend: {
-              text: "Why are you giving them the vaccine?",
-              classes: "nhsuk-fieldset__legend--l",
-              isPageHeading: true
-            }
-          },
-          items: items
-        }) }}
-      {% else %}
-          {{ checkboxes({
+        {% set items = [] %}
+        {% for option in eligibilityOptions %}
+          {% set items = (items.push({
+            text: option,
+            value: option,
+            checked: (data.eligibility | arrayOrStringIncludes(option))
+            }), items) %}
+        {% endfor %}
+
+        {% call fieldset({
+          legend: {
+            text: "Why are you giving them the vaccine?",
+            classes: "nhsuk-fieldset__legend--l",
+            isPageHeading: true
+          }
+        }) %}
+
+          {% if data.vaccine == "flu" %}
+
+            {% set londonFluItems = [] %}
+            {% for option in londonFluEligibilityOptions %}
+              {% set londonFluItems = (londonFluItems.push({
+                text: option,
+                value: option,
+                checked: (data.eligibility | arrayOrStringIncludes(option))
+                }), londonFluItems) %}
+            {% endfor %}
+
+            {% set londonFluHtml %}
+              {{ radios({
+                idPrefix: "eligibility-2",
+                name: "eligibility",
+                items: londonFluItems
+              }) }}
+            {% endset %}
+
+            {% set items = (items.push({
+              divider: "or"
+            }), items) %}
+
+            {% set items = (items.push({
+              text: "London flu service",
+              value: "london-flu",
+              conditional: {
+                html: londonFluHtml
+              }
+            }), items) %}
+
+          {% endif %}
+
+          {{ radios({
             idPrefix: "eligibility",
             name: "eligibility",
-            errorMessage: {
-              text: (errors | first).text
-            } if (errors | length) > 0,
-            fieldset: {
-              legend: {
-                text: "Why are you giving them the vaccine?",
-                classes: "nhsuk-fieldset__legend--l",
-                isPageHeading: true
-              }
-            },
-        hint: {
-            text: "You can select more than 1 option. But only the first option selected is sent to NHS England."
-          },
             items: items
           }) }}
-        {% endif %}
+
+        {% endcall %}
 
         {{ button({
           text: "Continue"

app/views/record-vaccinations/vaccine.html

@@ -70,7 +70,8 @@
                   "text": "Vaccine product"
                 }
               },
-              "items": productItems
+              "items": productItems,
+              value: data.vaccineProduct
             }) }}
           {% endset %}
         {% endif %}
@@ -94,6 +95,7 @@
             "isPageHeading": true
           }
         },
+        value: data.vaccine,
         errorMessage: {
           text: vaccineError
         } if vaccineError,