S field migration table

F-05 maps every S.<name> field from openai4s/server/webui/app.js onto a @preact/signals field in frontend/src/stores/. One row per field. The window.S Proxy in frontend/src/compat/window-exports.ts get/set-maps each name onto store.<name>.value.

Origin:

declared — const S = { … } at app.js:120–131
dynamic — later assignment (S._seqSeen at 5176, S._streamEpoch at 5180, S._artBust at 5323, and siblings)

identity fields are stored by reference. Nested writes such as S._timelineView.searchQuery = … and S._timelineView.collapsedTurns.add(…) mutate the same object E2E asserts with ===.

Do not edit the table by hand independently of S_FIELD_META in registry.ts — migration.test.ts diffs the two plus tests/webui-contract.md.

`session`

Original	Store path	Origin	app.js	Identity
`projects`	`session.projects`	declared	120	no
`sessions`	`session.sessions`	declared	120	no
`project`	`session.project`	declared	120	no
`currentId`	`session.currentId`	declared	120	no
`sandboxOrigin`	`session.sandboxOrigin`	declared	120	no
`_titleName`	`session._titleName`	declared	120	no
`annotations`	`session.annotations`	declared	120	no
`_annotDraft`	`session._annotDraft`	declared	120	no
`editingProject`	`session.editingProject`	dynamic	6873	no
`folders`	`session.folders`	dynamic	7021	no
`_foldersFor`	`session._foldersFor`	dynamic	7021	no
`_folderCollapsed`	`session._folderCollapsed`	dynamic	7042	yes
`_sessionScope`	`session._sessionScope`	dynamic	6985	no
`sessionPages`	`session.sessionPages`	dynamic	6985	no
`_sessionsLoadingMore`	`session._sessionsLoadingMore`	dynamic	7006	no
`sessionsHasMore`	`session.sessionsHasMore`	dynamic	6997	no
`_openGen`	`session._openGen`	dynamic	7137	no
`msgCursor`	`session.msgCursor`	dynamic	7134	no
`msgHasEarlier`	`session.msgHasEarlier`	dynamic	7134	no
`_msgEarlierLoading`	`session._msgEarlierLoading`	dynamic	7134	no
`feedback`	`session.feedback`	dynamic	7163	yes
`lastAnnotationReservation`	`session.lastAnnotationReservation`	dynamic	8043	no

`stream`

Original	Store path	Origin	app.js	Identity
`ws`	`stream.ws`	declared	120	no
`stream`	`stream.stream`	declared	120	yes
`running`	`stream.running`	declared	120	no
`planMode`	`stream.planMode`	declared	120	no
`exploreMode`	`stream.exploreMode`	declared	120	no
`planPending`	`stream.planPending`	declared	120	no
`planReady`	`stream.planReady`	declared	120	yes
`planStatus`	`stream.planStatus`	declared	120	no
`_seqSeen`	`stream._seqSeen`	dynamic	5176	yes
`_streamEpoch`	`stream._streamEpoch`	dynamic	5180	no
`_replayGap`	`stream._replayGap`	dynamic	5197	no
`stepEls`	`stream.stepEls`	dynamic	5458	yes
`reviewGate`	`stream.reviewGate`	dynamic	5571	yes
`turnTicket`	`stream.turnTicket`	dynamic	5680	no
`pendingRequestId`	`stream.pendingRequestId`	dynamic	5687	no
`pendingExecutionId`	`stream.pendingExecutionId`	dynamic	5690	no
`_resumeTimer`	`stream._resumeTimer`	dynamic	5838	no
`_resumeTok`	`stream._resumeTok`	dynamic	5838	no
`permCards`	`stream.permCards`	dynamic	6490	yes

`notebook`

Original	Store path	Origin	app.js	Identity
`cells`	`notebook.cells`	declared	120	yes
`kernels`	`notebook.kernels`	declared	120	yes
`liveCells`	`notebook.liveCells`	declared	120	yes
`_liveCell`	`notebook._liveCell`	declared	120	yes
`kernelFilter`	`notebook.kernelFilter`	declared	120	no
`variableInspector`	`notebook.variableInspector`	declared	131	yes
`pendingReplIdentity`	`notebook.pendingReplIdentity`	dynamic	2993	yes
`execSources`	`notebook.execSources`	dynamic	7141	yes
`lineage`	`notebook.lineage`	dynamic	7148	yes
`_lineageFor`	`notebook._lineageFor`	dynamic	7148	no
`_lineageReq`	`notebook._lineageReq`	dynamic	8374	no
`artifactWorkbench`	`notebook.artifactWorkbench`	dynamic	8710	no
`_executionLoadReq`	`notebook._executionLoadReq`	dynamic	9747	no
`_nbDirty`	`notebook._nbDirty`	dynamic	9906	no
`_nbReading`	`notebook._nbReading`	dynamic	9906	no
`_nbSched`	`notebook._nbSched`	dynamic	9907	no
`_replDraft`	`notebook._replDraft`	dynamic	10430	no
`_replDrafts`	`notebook._replDrafts`	dynamic	10430	yes
`_replLanguage`	`notebook._replLanguage`	dynamic	10431	no

`timeline`

Original	Store path	Origin	app.js	Identity
`actionTimeline`	`timeline.actionTimeline`	declared	124	yes
`executionQueue`	`timeline.executionQueue`	declared	124	yes
`executionIdentity`	`timeline.executionIdentity`	declared	124	yes
`recoveryState`	`timeline.recoveryState`	declared	124	yes
`actionTimelineSelectedGroupId`	`timeline.actionTimelineSelectedGroupId`	declared	125	no
`actionTimelineSelectedBranchId`	`timeline.actionTimelineSelectedBranchId`	declared	125	no
`recoveryActions`	`timeline.recoveryActions`	declared	126	yes
`branchState`	`timeline.branchState`	declared	126	yes
`branchUndo`	`timeline.branchUndo`	declared	126	yes
`contextState`	`timeline.contextState`	declared	126	yes
`securityState`	`timeline.securityState`	declared	126	yes
`computeTasks`	`timeline.computeTasks`	declared	126	yes
`delegationState`	`timeline.delegationState`	declared	127	yes
`workbenchErrors`	`timeline.workbenchErrors`	declared	129	yes
`_workbenchReq`	`timeline._workbenchReq`	declared	129	no
`_timelineHistoryReq`	`timeline._timelineHistoryReq`	declared	129	no
`_timelineHistoryLoading`	`timeline._timelineHistoryLoading`	declared	129	yes
`_timelineView`	`timeline._timelineView`	declared	129	yes
`_recoveryActionLoading`	`timeline._recoveryActionLoading`	declared	130	no
`_branchActionLoading`	`timeline._branchActionLoading`	declared	130	no
`_timelineRestoreFocusGroupId`	`timeline._timelineRestoreFocusGroupId`	declared	130	no
`_workbenchLoading`	`timeline._workbenchLoading`	dynamic	3356	no
`_workbenchTimer`	`timeline._workbenchTimer`	dynamic	3387	no
`_branchConversationTimer`	`timeline._branchConversationTimer`	dynamic	3391	no
`computeStatus`	`timeline.computeStatus`	dynamic	7153	yes

`artifacts`

Original	Store path	Origin	app.js	Identity
`artifacts`	`artifacts.artifacts`	declared	120	yes
`dockArtifact`	`artifacts.dockArtifact`	declared	120	yes
`filesScope`	`artifacts.filesScope`	declared	120	no
`projectArtifacts`	`artifacts.projectArtifacts`	declared	120	yes
`_projArtFor`	`artifacts._projArtFor`	declared	120	no
`rendererCatalog`	`artifacts.rendererCatalog`	declared	121	yes
`_rendererCatalogPromise`	`artifacts._rendererCatalogPromise`	declared	121	yes
`rendererDescriptors`	`artifacts.rendererDescriptors`	declared	121	yes
`_artBust`	`artifacts._artBust`	dynamic	5323	yes
`_tbl`	`artifacts._tbl`	dynamic	5334	yes
`_editing`	`artifacts._editing`	dynamic	7158	no
`_computeLostSeen`	`artifacts._computeLostSeen`	dynamic	8244	yes
`_artVer`	`artifacts._artVer`	dynamic	8355	yes
`_envSnapById`	`artifacts._envSnapById`	dynamic	8376	yes
`_artifactLoadReq`	`artifacts._artifactLoadReq`	dynamic	8381	no
`_thumbCache`	`artifacts._thumbCache`	dynamic	8429	yes
`_editorAC`	`artifacts._editorAC`	dynamic	9484	yes
`_molView`	`artifacts._molView`	dynamic	9615	yes
`_molViewer`	`artifacts._molViewer`	dynamic	9613	yes

`ui`

Original	Store path	Origin	app.js	Identity
`dock`	`ui.dock`	declared	120	yes
`openTabs`	`ui.openTabs`	declared	120	yes
`activeTab`	`ui.activeTab`	declared	120	no
`provMode`	`ui.provMode`	declared	120	no
`provSub`	`ui.provSub`	declared	120	no
`_menu`	`ui._menu`	declared	120	yes
`_dashPoll`	`ui._dashPoll`	dynamic	6755	no
`_modalMode`	`ui._modalMode`	dynamic	6790	no
`_jobPoll`	`ui._jobPoll`	dynamic	11789	no
`_messagesFollow`	`ui._messagesFollow`	dynamic	12938	no

`customize`

Original	Store path	Origin	app.js	Identity
`models`	`customize.models`	declared	120	yes
`defaultModel`	`customize.defaultModel`	declared	120	no
`skillsCatalog`	`customize.skillsCatalog`	declared	120	yes
`environmentStatus`	`customize.environmentStatus`	declared	128	yes
`standardProfileReadiness`	`customize.standardProfileReadiness`	declared	128	yes
`_environmentStatusPromise`	`customize._environmentStatusPromise`	declared	128	yes
`_environmentStatusRefreshFailed`	`customize._environmentStatusRefreshFailed`	declared	128	no
`defaultModelName`	`customize.defaultModelName`	dynamic	8344	no

Not on `S` (module-level)

Original	Store path	Origin	app.js	Identity
`_kc`	`notebook._kc`	module `const _kc`	9954	yes

F-14 owns cache invalidation (kernel_status / turnDone / nbSwitchEnv). The object is not exposed on the S Proxy.

S field migration table

session

stream

notebook

timeline

artifacts

ui

customize

Not on S (module-level)