Update

docs/CODEX_EXECUTION_LOG.md

@@ -1,3 +1,34 @@
+## 2026-07-27 - Guest demo and product professionalization
+
+- Audited the access experience, workbench information density, responsive
+  layout and accumulated frontend styling; recorded findings in
+  `docs/PROJECT_PROFESSIONALIZATION_AUDIT_2026-07-27.md`.
+- Added configuration-gated guest access with a short signed session, explicit
+  guest role, demo-project scope, filtered project listing and backend-enforced
+  read-only/cross-project restrictions.
+- Rebuilt the landing and login hierarchy, added **Als gast verkennen**, mapped
+  authentication failures to user-facing Dutch messages and improved mobile
+  navigation and accessibility states.
+- Reduced the guest workbench to map exploration and existing quality evidence,
+  added persistent demo context and removed operator-only controls from the
+  guest surface.
+- Added targeted final layout overrides instead of destructively rewriting the
+  four historical workbench stylesheets without a complete visual-regression
+  baseline.
+- Added Compose, Unraid, DockerMan and runtime validation settings for guest
+  enablement. A later packaging follow-up changed the default to enabled whenever
+  operator authentication is active; installations can still opt out explicitly.
+- Validation: 6/6 targeted backend auth/guest tests and 2/2 direct frontend
+  interaction smokes passed; Python compile, complete frontend TypeScript
+  typecheck, CSS parsing, Compose YAML, Unraid XML, DockerMan shell syntax and
+  scoped diff-whitespace checks passed.
+- Environment boundary: the supplied frontend dependency tree contains only
+  Windows-native Rollup/esbuild packages. Vitest and Vite therefore could not
+  start in this Linux review container, and the available package proxy returned
+  503 responses/time-outs while fetching Linux replacements. Re-run unit tests
+  and the production bundle after a clean `npm ci` in the normal Windows or
+  Linux CI/Docker environment.
+
 ## 2026-07-26 - Complete Belgium PyTorch training roadmap
 
 - Added `docs/PYTORCH_TRAINING_ROADMAP_BELGIUM.md` as the executable programme board.