Adopt executeEpisodeDone orchestration as the canonical path for
'Done for now' activity boundary: one user Done triggers exactly
prepareCompletedEpisode -> reconsiderCompletedEpisode -> applyValidatedProposal
-> Current Understanding synthesis -> leave focused workspace.
Production changes (components/scenario-form.jsx):
- Add prepareCompletedEpisode, reconsiderCompletedEpisode, applyValidatedProposal imports
- Export executeEpisodeDone({params}) with all 4 domain functions as named
parameters (defaults to module exports) for deterministic test wiring
- Rewrite handleDoneForNowPromotion(targetNodeId) as async: delegates to
executeEpisodeDone pipeline; CU synthesis installed only on success
- Add doneInProgressRef useRef(false) for exactly-once Done enforcement
- On synthesis failure: KEEP updated graph, KEEP Findings, KEEP existing CU
- Retire produceFindingInformedSummary from ScenarioForm (legacy CU writer)
- Remove legacy idempotence guard and Evidence:[] regex dedup
Test changes (tests/ui/scenario-form-episode-done.test.jsx):
- 9 tests verifying orchestration pipeline correctness:
1. Successful path order: prepare -> reconsider -> apply -> synthesis
2. Correct prepared episode input parameters
3. Structured application evidence (no answer fields in context)
4. nextGraph used for synthesis (not stale result state)
5. Reasoning failure: apply not called, CU synthesis not called
6. Application failure: CU synthesis not called, graph not replaced
7. Synthesis failure: nextGraph remains installed (no rollback)
8. Exactly-once per call for each domain function
9. Legacy Done writer retired (pipeline does not produce deterministic summary)