`req` opens its blocking dialog for 400/409/422/5xx only. A 403/404/429 was left to the caller and a
502-504 or lost connection got just the self-clearing connection notice, so 34 mutations without a
reporting onError and 15 direct api writes with a bare or missing catch failed in silence: a hidden
channel that snapped back, a share link that never revoked, a confirmed account delete that ended
with nothing said.
- lib/queryClient: one MutationCache reporter. react-query awaits it BEFORE the mutation's own
onError, so it waits a task and skips a failure the site already reported; the toast title comes
from `meta.failTitle`, `meta.errorShownInline` opts out.
- notifyActionError: title names WHAT failed, the line under it says WHY (`failureReason`: a
structured localized detail, else the status). It marks the error reported (`markReported`), so
nothing reports one failure twice; `notifyKnownFailure` for a site's own specific sentence.
- Every silent site named (45 new HU/EN titles, 4 reasons). Stale "the global dialog shows it"
comments corrected on the job actions, channel block, Plex sync, cookies, download enqueue,
account delete and usePref.
- Channels passed the tag hook's channel id to the reporter as the error; the tag and priority hooks
now report themselves, with the real error.
- A contract test keeps every useMutation naming its failure; CLAUDE.md gains the pattern row.
- history.dom.test: the "navigates only once the entries are back" assertion raced an async act's
macrotask flush (1 in 5 runs); it now asserts from a later popstate listener.
Deep-review round 4, the "one report per failure" contract round 3 introduced.
- `req` marked gateway (502/503/504) and network failures "already reported" because they raise
the connection notice. But that notice is about connectivity and removes itself on the very next
answer — which every caller's own resync refetch fetches at once — so a delete that hit a
keepalive reset flashed the notice and was then reported nowhere, the list still there. Only the
durable reports (the error dialog, the 401 sign-out) count now; the caller says the action failed.
- A connection notice the user closed swallowed every later one for the rest of the visit; it is
raised again.
- `req` and `uploadReq` share one failure policy (`reportFailure`). The upload copy had drifted: a
502 opened the blocking "Server error (502)" dialog and cleared a notice that was still true.
- A taken Plex collection name is a structured 409, localized, and the create/rename calls are
quiet: it was an English dialog plus a Hungarian toast. `notifyCollectionEditError` is gone.
- The mutation onErrors that toasted unconditionally after a non-quiet request (invite approve /
deny / add, demo whitelist, audit clear, scheduler, share, full history, edit, config tests, tag
attach) go through `notifyActionError`; the playlist delete's hand-rolled copy of it too (it takes
a level now). The user role / suspend / delete actions had no onError at all: a user deleted in
another tab failed silently and stayed listed — now said, and the list refetched.
peter