CI: run the list checks inside CI's repository-checks job on PRs (#2292)

Lists and Packaging lint each took their own runner slot on every PR push. The list checks now run
in the existing checks job; Lists stays on main. Packaging lint skips PRs that only touch icons.

Co-authored-by: Claude Opus 5.5 <[email protected]>

.github/workflows/ci.yml

@@ -202,6 +202,10 @@ jobs:
         run: cargo xtask licences --check
       - name: Dependency layers
         run: cargo xtask layers
+      - name: Sorted lists
+        run: cargo xtask lists
+      - name: Design format pending changes
+        run: bash scripts/test-format-pending.sh
       - name: Web app offline use and updates (headless Chrome)
         run: cargo xtask web-offline-test
       - name: Affected-package selection self-test

.github/workflows/lists.yml

@@ -1,9 +1,10 @@
 # Files many pull requests add to are kept so that additions don't conflict: one file per change
 # or one sorted line per item (CONTRIBUTING.md, "Lists many changes add to"). Fast, no build.
+# Pull requests get the same checks in CI's "Format and repository checks" job (one runner slot
+# per PR instead of three); this copy keeps main honest.
 name: Lists
 
 on:
-  pull_request:
   push:
     branches: [main]
 

.github/workflows/packaging-lint.yml

@@ -8,7 +8,7 @@ on:
     branches: [main]
     paths: [".github/workflows/**", "packaging/**", "assets/**"]
   pull_request:
-    paths: [".github/workflows/**", "packaging/**", "assets/**"]
+    paths: [".github/workflows/**", "packaging/**", "assets/platforms/**"]
   workflow_dispatch:
 
 permissions: