1.0.0-alpha6: operator-UX polish from alpha5 field testing Three operator-UX nits surfaced by alpha5 field testing on an LSCache-fronted Drupal 11 site. None changed alpha5 correctness, but together they made the lead diagnostic look broken on edge- cached stacks. No API changes. - Cache state comparison falls back from drupal_cache.page to drupal_cache.dynamic when page is empty. - Empty-state copy mentions both cwv-pc and cwv-dc. - README documents cwv-pc non-availability on edge-cached stacks. - README's developer-API column list corrected. See ROADMAP.md for full details.