Exclude tests, docs and tooling from SonarQube Cloud analysis

.sonarcloud.properties

@@ -1,12 +1,16 @@
 # SonarQube Cloud analysis scope.
 #
-# Analyse application source only. Build tooling (bin/) and CI workflow
-# definitions (.github/) are development infrastructure: they are never
-# shipped in the published wheel, so findings there fail the quality gate
-# without describing any risk to users of this package.
+# Analyse application source only. Tests, build tooling, documentation
+# and CI workflow definitions are never shipped in the published
+# package, so findings there fail the quality gate without describing
+# any risk to users of this project.
 #
-# Notably this excludes githubactions:S8541, which asks for `uv --no-build`.
-# That flag cannot be used here: this project compiles Fortran extensions
-# from source, and uv refuses with "can't be installed because it is marked
-# as `--no-build` but has no binary distribution".
-sonar.exclusions=.github/**,bin/**
+# Every path listed below was verified to exist in this repository;
+# directories this project does not have are deliberately omitted
+# rather than carried over from a sibling repo.
+#
+# This also covers githubactions:S8541, which asks for uv's
+# `--no-build`. That flag cannot be used by a project built from
+# source: uv refuses with "can't be installed because it is marked as
+# `--no-build` but has no binary distribution".
+sonar.exclusions=.github/**,tests/**,bin/**,docs/**