Add support for pathways and add breast screening pathway index page

Author: edwardhorsford

app/breast-screening-pathway.md

@@ -3,6 +3,7 @@ layout: collection
 title: Breast screening pathway
 description: Replacing legacy technology to build a clinically‑safe, integrated screening service that better supports breast screening office staff
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.breast-screening-pathway
   reverse: true

app/breast-screening-reporting.md

@@ -3,6 +3,7 @@ layout: collection
 title: Breast screening reporting
 description: Breast Screening Reporting is a data team, formed in July 2025. It focuses on the performance and reporting of screening services. It continues some of the work of Team Analyse.
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.breast-screening-reporting
   reverse: true

app/breast-screening.md

@@ -0,0 +1,17 @@
+---
+layout: collection
+title: Breast screening
+description: Design history posts from teams working on breast screening services
+area: screening
+pagination:
+  data: collections.pathway-breast-screening
+  reverse: true
+  size: 50
+permalink: "breast-screening/{% if pagination.pageNumber > 0 %}page/{{ pagination.pageNumber + 1 }}{% endif %}/"
+---
+
+## Teams
+
+{% for team in collections['pathway-breast-screening-teams'] %}[{{ team.data.title }}]({{ team.url }}){% if not loop.last %} | {% endif %}{% endfor %}
+
+## Posts

app/explore-team.md

@@ -3,6 +3,7 @@ layout: collection
 title: Explore team
 description: A discovery team that understands problems and experiments with solutions
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.explore-team
   reverse: true

app/manage-breast-screening.md

@@ -3,6 +3,7 @@ layout: collection
 title: Manage breast screening
 description: A staff-facing service that supports the breast screening journey from appointment check-in to clinical data collection, image reading and arbitration
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.manage-breast-screening
   reverse: true

app/screening-invite.md

@@ -3,6 +3,7 @@ layout: collection
 title: Invite
 description: Delivering screening communications to participants in an appropriate, clinically safe way through the channel that works best for them
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.screening-invite
   reverse: true

app/select.md

@@ -3,6 +3,7 @@ layout: collection
 title: Select
 description: A service that helps ensure the right people are selected for invitation to screening
 area: screening
+pathway: breast-screening
 pagination:
   data: collections.select
   reverse: true

eleventy.config.js

@@ -71,7 +71,7 @@ export default function (eleventyConfig) {
     eleventyConfig.addCollection(`${area}-area`, (collection) => {
       return collection
         .getAll()
-        .filter(({ data }) => data?.area === area)
+        .filter(({ data }) => data?.area === area && !data?.pathway)
         .sort((a, b) => {
           // Promoted collection in an area should be shown first
           if (a.data.promote) return -1
@@ -82,6 +82,29 @@ export default function (eleventyConfig) {
     })
   }
 
+  // Pathway collections
+  // Breast screening pathway - aggregates posts from all breast screening teams
+  eleventyConfig.addCollection('pathway-breast-screening', (collection) => {
+    return collection
+      .getFilteredByGlob([
+        'app/manage-breast-screening/**/*.md',
+        'app/breast-screening-pathway/**/*.md',
+        'app/breast-screening-reporting/**/*.md',
+        'app/explore-team/**/*.md',
+        'app/select/**/*.md',
+        'app/screening-invite/**/*.md'
+      ])
+      .sort((a, b) => a.date - b.date)
+  })
+
+  // Breast screening teams - the team index pages for this pathway
+  eleventyConfig.addCollection('pathway-breast-screening-teams', (collection) => {
+    return collection
+      .getAll()
+      .filter(({ data }) => data?.pathway === 'breast-screening' && data?.layout === 'collection')
+      .sort((a, b) => a.data.title.localeCompare(b.data.title))
+  })
+
   // Service collections
   for (const service of [
     'digital-prevention-services',