fix(workflow): a stage control that fails or never answers is silent (graph save, Reset, Pause, Resume, Stop) #1521

Written-by: FlyBot Lead

What happens

Five stage controls in the Workflow sidebar call the host with a bare .then(...). If that call rejects, or never answers, the click leaves the UI exactly as it was and nothing is reported: plugins/workflow/client.js contains 10 bare .then( and 0 .catch(, and the client call() has no default timeout.

Reproduction on live main 92a6aabd0e:

• :1286 Stage onCommit (graph save)
• :1295 onReset
• :1299 onPause
• :1302 onResume
• :1305 onStop

With a host that refuses (workflow/graph, workflow/reset, workflow/pause, workflow/resume, workflow/stop each reject), a click produces an unhandledRejection and no visible change — the user believes the run was reset or stopped when it was not. A host call that never answers leaves the control looking dead with no message at all.

Red first, on base 92a6aabd0e with only the new tests added: failureType: unhandledRejection for the four refusing cases ('The workflow store refused the write', 'The reset was refused', 'The pause was refused', 'The resume was refused') and TypeError: client.settledCall is not a function for the timeout case.

Expected

Each of the five controls reports a failure in the stage's existing .wf-err alert (role="alert", exactly the message the call threw), a call that does not answer within 10 s settles as The run did not answer, and a success clears the stale alert. Every successful path stays as it is today.

Scope

• plugins/workflow/client.js (the five call sites plus one settledCall helper and its five i18n keys), plugins/workflow/test/client.test.js (five tests), docs/subsystems/workflow.md (one line in the client.js row), changelog.d/.
• Not this issue: the Settings page calls (workflow/state, workflow/graph, workflow/set-model) are fix(workflow): a failed host call on the plugin Settings page is silent (state, save, set-model) #1504 / PR fix(workflow): report a failed host call on the settings page #1505 — zero overlap of call sites. The section refresh at :1095, CreateModal onTemplate at :1315 and the six await call(...) (rename/delete/assign/create) are untouched here and should be filed separately if wanted.
• Note for whoever merges second: fix(workflow): report a failed host call on the settings page #1505 introduces the same settledCall helper in this file from the same base. The second PR drops its duplicate definition on rebase; a duplicate definition is not a reason to redo either branch.