Add lighthouse showcase pack (v0.1 runnable, v0.2 draft); fix manual-check cycle and blocked-step feedback (RBT-WP-0004-T05)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 295952@bnt-lap001
Assistant-Session: e93f64ad-516c-46eb-9666-aad8d300c477

workplans/RBT-WP-0002-runbook-pack-spec-and-validator.md

@@ -95,6 +95,21 @@ state_hub_task_id: "dae5a6fe-9f1f-553a-8b73-f47ab6d91b59"
 Port the four validating packs to v0.2 where it helps, and add v0.2 test packs with
 alternatives, gates and actors.
 
+## Showcase pack as acceptance test
+
+```task
+id: RBT-WP-0002-T07
+status: progress
+priority: medium
+```
+
+`runbooks/showcase-lighthouse/` is a harmless interactive-fiction runbook (poem, story,
+scratch logbook under /tmp/rtut-*). `pack.yaml` (v0.1) runs today and is the test bed for
+UI refinement. `pack.v0.2.draft.yaml` expresses the same story in the proposed v0.2 model
+(stages, parallel steps, alternatives, gates, actors, datapoints, artefacts, irreversible
+confirmation). The draft is checked for internal consistency by tests. When v0.2 is adopted
+the validator must accept it unchanged, or the proposal changes.
+
 ## Acceptance Criteria
 
 - Every pack in this repo and in `net-kingdom` validates.

workplans/RBT-WP-0004-local-runbook-ui.md

@@ -73,12 +73,12 @@ diff from RBT-WP-0003-T04.
 
 ```task
 id: RBT-WP-0004-T05
-status: todo
+status: done
 priority: high
 state_hub_task_id: "d635f972-0377-5581-a8fe-c01ef89559cd"
 ```
 
-Defects found in review: a ticked manual check shows "passed" while the step stays
+Done 2026-09-29 against the lighthouse showcase (tested over HTTP; a browser pass by Bernd is still the real check). Defects found in review: a ticked manual check shows "passed" while the step stays
 `running`, and unticking changes nothing; blocked steps show no Start button and no
 reason. Make the cycle explicit (check, record, mark done), and show what a blocked
 step is waiting for.