Commit Graph
12 Commits
Author SHA1 Message Date
timothyandClaude Opus 5 39c4e8df0a fix(651): review round 8 — put the selection-id predicate at the boundary, not the site
Round 7 added the int32 check inside `isSearchPickerOption` — the place the defect was found
— which left every other door into editor state open. A malformed successful response
carrying `1.5` or `2147483648` still entered `draft` through list-backed options and through
the selection restored from the detail read, keeping Save enabled and sending a value the API
cannot bind, while the identical value arriving via SearchPicker was correctly rejected.

The predicate now lives once, in `web/src/api/selectionId.ts`, and sits on every path by
which an id from the wire becomes editor state. The class crosses all three screens, not just
the one the finding named, so all three are covered:
- RerunCollectionsScreen: `toPickerOptions` (3 list branches) + `draftFromRerun`
- PlaylistsScreen: `toPickerOptions` (3 list branches) + `draftFromItem` (4 id fields)
- FillerPresetsScreen: `draftFromPreset` (5 id fields) + the collection-family browse options
- pickers.tsx: `isSearchPickerOption` now delegates rather than carrying its own copy

An unbindable id is treated as ABSENT, never coerced — rounding 1.5 to 1 would submit a
DIFFERENT record — so it surfaces as "no selection" with Save disabled and a visible reason;
an option that cannot be selected safely is dropped rather than rendered. Five regressions
assert zero writes are reachable via each previously-unguarded path.

Also corrects two of my own test descriptions, per the review: the padded-ETag test is a
regression guard rather than a round-7 defect demonstration (Headers strips outer whitespace
before the app sees it), and the late-settlement test guards the abort/race COMPOSITION —
what it actually fails is an abort-only implementation whose fetch ignores its signal, which
is why its stub ignores `init.signal`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 e605e4006a fix(651): review round 7 — treat "no usable token" as one class, not three values
HIGH: the fail-closed gate rejected `null` but not the adjacent values. `Headers.get('ETag')`
returns `''` for an empty or whitespace-only header, which PASSED the gate and produced an
editable draft; `updateRerunCollection`'s `ifMatch ? … : undefined` then dropped the empty
string as falsy and sent no `If-Match`, silently overwriting a collaborator — the exact class
the gate exists to make unreachable, reached through the value next door. Absent, empty and
whitespace are now one case ("no usable concurrency token"), normalized by a single
`usableEtag` helper that returns the TRIMMED token or null, so `etagRef` can only ever hold
something that will actually be sent. Tested across four blank shapes asserting zero PUTs are
reachable, plus a padded ETag that must be trimmed and USED rather than dropped.

MEDIUM: the deadline abandoned the wait without cancelling the work, so each Retry stacked
another live connection. It now aborts via an AbortSignal (threaded through
`getRerunCollectionWithMeta`) AND clears its timer on settlement and unmount. Both halves are
kept deliberately: aborting cancels the work, while the rejected race stops the UI waiting
even if the abort never propagates — cancellation and giving-up are not the same guarantee,
which the late-settlement test proves by using a stub that ignores its signal.

MEDIUM: `Number.isFinite` accepted ids the API cannot bind — `1.5` and values outside int32
rendered, committed through `onSelect`, and would fail server-side on `selectedId`. Validated
as an int32 integer.

MEDIUM: a malformed or failed page was reported as "No matches", telling the user the library
is empty when the request actually failed and giving no hint that reopening retries. Failures
now surface as a distinct alert.

MEDIUM: `spa-conventions.md` still mandated the deleted "never let a refresh clear an id it
failed to name" guard and said "the client guard stays" — contradicting the initialize-once
bullet 20 lines below it. Rewritten to state that the guard is gone and must not be rebuilt,
with the reason (it only ever preserved a list-seeded value that is null in production).
Grepping the DELETED TERMS across all docs — the lesson from round 6's stale `rule:` — also
caught two stale `signals:` tokens on the record that the rule fix had missed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 a973fc48e2 fix(651): review round 6 — fail closed on a missing ETag; validate elements, not containers
HIGH: "the draft is only created alongside the ETag" was not the invariant I claimed. The
response can OMIT the header, in which case the draft was still created and the subsequent
PUT carried no `If-Match` — the round-4 force-write hole in a new form. The editor now fails
closed: no concurrency token, no editable draft (error + Retry/Back). Six tests were leaning
on ETag-less detail mocks, which is exactly how this stayed invisible; every single-record
GET mock now goes through a `detailResponse` helper that always sets one, and the absent
case is tested explicitly — asserting zero PUTs are even reachable.

MEDIUM: the detail GET had neither deadline nor recovery affordance, so a never-settling
request left a bare spinner with no way out. It is now raced against a 15s deadline, the
loading view carries a Back control, and the error view offers Retry.

MEDIUM: the malformed-body guard checked the container, not the elements. `[null]` passes
`Array.isArray`, reaches `setResults`, and throws on `option.id` during render; a wrong-typed
`id` would commit an invalid value through `onSelect`. Each element is now validated, and a
malformed payload is treated as a failed attempt so it stays retryable rather than cached.

MEDIUM: the decision record's `rule:` — the authoritative string, copied verbatim into the
catalog that is the documented entry point — still mandated the machinery round 5 deleted:
touched-field hydration, `replaceDraft`, conflict reconciliation. Anyone following it would
have rebuilt the rejected design. Rewritten to the initialize-once policy and the catalog
regenerated; historical prose no longer says `replaceDraft` "is now" separate.

MEDIUM: the replacement Reload test resolved its second GET immediately and returned a
non-null selection, so it observed neither a pending reload nor the dirty-selection discard —
removing `setDraft(null)` could leave it green. It now holds the reload open, asserts the
form is ABSENT while pending, and returns `selectedId: null` to pin the case round 3 showed
could resurrect a dirty id over a collaborator's change.

Checklist item taken from this: when a mechanism is deleted, the decision record's `rule:` is
the single most likely thing left stale, and the one string that propagates.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 78cd9e0ebf fix(651): review round 5 — delete the draft-reconciliation layer instead of extending it
Took the coordinator's proposal. Rounds 2-4 built and rebuilt a layer that merged a late
detail response into a draft the user was already editing; it produced a HIGH finding in
three consecutive rounds, three of them cross-user lost updates. Round 5's finding was
unfixable in kind: `identityConflicts` had no immutable baseline, so it could not tell "the
user changed this" from "the server changed this" — giving both a missed conflict (same
type, different id: v2 ETag installed over the user's id, third lost update) and a false one
(local type switch: dialog opens spuriously, and "Keep editing" leaves `etagRef` null so the
next PUT is a silent FORCE-WRITE).

The race is removed rather than refereed. `RerunCollectionEditor` now initializes its draft
EXACTLY ONCE from the detail GET and withholds the form until it lands; conflicts are
detected at save time by the `If-Match` -> 412 -> Reload path that already existed. Deleted:
`touchedRef`, `hydrateDraft`, `hydrateSelection`, `hydrateIdentity`, `identityOf`,
`identityConflicts`, `replaceDraft`, `replacePending` and the hydrate/replace load mode.
Reload simply sets the draft back to null and re-runs the same load, so the form is
unmounted while the replacement is in flight — round 4's MEDIUM-4 becomes structural.

Two facts make this lossless rather than a regression. The list row could never have helped:
`GetPagedRerunCollectionsHandler` applies ZERO `.Include()`s where
`GetRerunCollectionByIdHandler` applies fourteen, and both project through the same mapper,
so the list response is a strict SUBSET of the detail one — the id round 1 preserved from it
is null in production for every row (#671), and existed only in test fixtures. And
FillerPresetsScreen/PlaylistsScreen already worked this way; RerunCollections was the
outlier, which is why nearly every finding in rounds 3-5 traced to it.

The ETag is now written in the same callback that sets the draft, so `draft != null` implies
an ETag and a PUT without `If-Match` is unreachable by construction.

MEDIUM-2: a failed search retried every debounce forever — a fresh `{ok:false}` re-ran the
effect and the success guard declined it. `ok` (is the held answer authoritative) is now
separate from `attemptRef` (have we already tried this exact source+query); only an explicit
reopen/focus/edit re-arms a retry.

MEDIUM-3: a malformed 2xx body resolves as `undefined` (client.ts swallows the SyntaxError),
and `setResults(undefined)` threw on the next render. A non-array is now treated as a failed
attempt, and `search` is raced against a 10s deadline since a caller-supplied promise carries
no abort signal.

Two tests were hiding findings and are fixed: the failed-search test pressed Escape before
the unintended retry could fire, and the round-4 conflict test claimed to select id 9 while
firing the already-selected id 5. Fourteen tests of the deleted machinery are gone with it,
replaced by six asserting the new invariants.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 f601d957a6 fix(651): review round 4 — an id never travels without its namespace
Round 4's through-line: rounds 2-3 made HYDRATION treat {collectionType, selectedId,
selectedName} as one value, but the fix was applied to the structure that was named rather
than to every structure that carries an id. Three more instances of the same class, plus
two independent findings.

HIGH-1 + HIGH-2 (one change, per the structural directive): every result, option and
cached result set now carries its SOURCE, and identity is compared as (type, id).
- `SearchPicker` takes a REQUIRED `source` prop and caches results against (source, query),
  not query text. Keying on text let the round-3 re-query guard SUPPRESS the new source's
  request and leave the previous namespace's hit clickable under the new label — a
  Collection id stored as a SmartCollection id. Results from another source are now hidden
  outright rather than dimmed: they are not stale, they are wrong. Required rather than
  defaulted, because a default would silently opt every caller out.
- `pickerFor` tags list-backed options with the type they were loaded for, on both
  RerunCollectionsScreen and PlaylistsScreen, so the previous type's rows stop being
  selectable the instant the active type changes rather than lingering through the
  replacement load.

HIGH-3: a touched identity contradicting the server's type is a CONFLICT. Pinning the
user's edit was right; adopting the response's newest ETag alongside it authorized a Save
that silently overwrote the collaborator's type change with no 412. The conflict dialog is
raised and the stale ETag kept, so even a forced Save 412s. With round 3's Reload defect
this is the second cross-user lost update, so it is recorded as a category: never install a
save-authorizing ETag over a local edit the server contradicts.

MEDIUM-4: the editor is inert while a Reload is pending. The dialog closes immediately, so
an edit typed before the replacement landed was silently erased along with the touched set
that protected it.

MEDIUM-5: cached search provenance records `ok`, so a transient 500 is retried instead of
being cached as an authoritative "No matches" that reopening can never clear.

Also: `npx tsc --noEmit` typechecks NOTHING in web/ — the root tsconfig is solution-style
("files": [] + references), so it resolves to zero inputs and exits 0. The real gate, and
what CI runs, is `npm run typecheck` (tsc -b). Verified by planting a deliberate type error:
--noEmit stayed green, -b caught it. Running the real gate surfaced four genuine errors in
tests written earlier this branch (a missing required prop and three `never has no call
signatures` from closure-assigned mock variables), fixed with the repo's existing
holder-object pattern rather than casts. Recorded in spa-conventions so the next session
doesn't repeat it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 5b0ba08aab fix(651): review round 3 — cover the class, not the named instance
Round 3 found four defects that are all one mistake: each earlier fix enumerated one
instance of a class instead of covering the class. Fixed by asking what else is in each
class rather than patching the named case.

CRITICAL — cross-user lost update. Conflict "Reload" ran through the refresh policy with a
touched-set reset. Because a reloaded RemoteStream reports `selectedId: null` under the
#671 server gap, the keep-ours-when-the-id-is-missing fallback restored the user's DIRTY
selection, the fresh ETag was installed, and the next Save silently overwrote the
collaborator's change — with the very edits the user had explicitly asked to discard.
"Keep ours when the server omits the id" is a REFRESH policy; a reload is a REPLACE.
`replaceDraft` is now a separate function and the mode travels with the load, so the two
cannot be confused at the call site.

HIGH — `collectionType` and the selection still hydrated apart. `collectionType` says which
table an id indexes, so it is part of the same indivisible value as the id and its name;
splitting it is the identical bug to splitting id from name. A record retyped server-side
mid-load hydrated the new type while retaining the old id, displaying and saving a
Collection id as a RemoteStream id. All three fields now resolve as one `Identity` unit:
either half touched pins the whole thing, a differing type takes the response's unit whole
(null selection included), and only once both sides agree on the type does the id/name rule
apply.

HIGH — stale results were still committable by pointer. Enter was gated and `onClick` was
not: the same defect in another modality. The guard moved into the single `choose()` sink
so every commit path is covered, including any added later, and a superseded list is now
genuinely inert (`aria-disabled` + dimmed) rather than looking normal and silently
no-opping.

MEDIUM — reopening after Escape re-queried an already-current result set; the duplicate
response reset the cursor the user had since moved, leaving Enter doing nothing. The effect
now skips the search when the cached results match the trimmed query, and reopening places
the cursor per the ARIA APG instead of swallowing the keypress.

Also corrects an overstated justification in FillerPresetsScreen: the render-time id check
was dropped because there is no reachable path TODAY, not because "every writer sets both"
— the initial load writes the id alone, and a stale resolver can repopulate the label after
a clear. Same enumeration error as the findings above; the comment now says what is
actually true and what to do if a path appears.

Note: an apostrophe I introduced inside the single-quoted `rule:` scalar broke PyYAML while
`decisions_validate.py` (hand parser) stayed green — the same trap class as the unquoted
`#`, caught only by scripts/tests.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 ba52219a9a fix(651): review round 2 — hydrate untouched fields, never merge a selection field-by-field
Re-review of a04d9f0b came back BLOCKED: the F1 merge fixed a visible data loss and
introduced a silent one. Four blockers, all web-only.

BLOCKER 1: `selectedId` and `selectedName` were coalesced independently, but they are one
value. Against a Song response (id resolves, name does not), a user selecting a different
song while the detail GET was in flight got the NEW name paired with the STORED id — chip
read "New Song", Save wrote 42, no error and no visual cue. Strictly worse than the
original defect, which at least cleared the field visibly. The same merge resurrected a
deliberate clear and reverted a type switch.

Replaced with two rules. The id/name pair resolves atomically (no id in the response ->
keep ours whole; same id -> its name may fill ours in; different id -> take theirs whole).
And hydration loses every race against the user: a `touchedRef`, fed by a single `edit()`
funnel so "touched" cannot drift from "changed", limits the refresh to fields the user has
not edited; an explicit conflict-reload clears it, since discarding local edits is its
entire purpose. Three interleaving tests hold the detail response open, act as the user,
then release it.

BLOCKER 2: Enter could commit a result from the previous query — highlight Alpha for "Al",
retype "Be", press Enter before the debounce. The highlight now drops on input change
rather than when the next response happens to arrive, and every keyboard action is gated
on the results matching what is typed. The stale list stays visible (hiding it flickers on
each keystroke), it just stops being actionable.

BLOCKER 3: Escape closed the popup while focus stayed in the input, where `onFocus` can
never re-arm it — the picker was dead until the user blurred and refocused. Typing and
ArrowDown now both reopen it.

BLOCKER 4: the LCG boundary test recomputed the divisor instead of exercising `lcg`, so
all three tests passed with the old `/ 0xffffffff`. Since the recurrence is a bijection
mod 2^32, the seed whose first step lands on 0xffffffff is solvable exactly (653637408);
the tests now drive the real generator into that state.

Also: the rerun #id-degrade and re-save tests did not await the refresh, so they were
satisfiable from the initial draft; they now await it and re-read live textContent. The
Episode/MusicVideo cases are relabelled as error-path guards — a 500 never reaches the
hydrate. FillerPresets' render-time id comparison is dropped as unreachable (every writer
sets label and id together, and the one async writer refuses a mismatched id); an
unreachable guard is an untested one.

#671 is referenced from spa-conventions §3b as the server-side root cause the client guard
defends against.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 e7e425fa25 fix(651): review round 1 — never clear an unnamed id, complete the Lucene escaping, keyboard-operable picker
Cold cross-family review of 57aefcdf. Six findings, all web-only.

F1 (HIGH, data-loss shaped): RerunCollectionsController.ProjectToResponseModel derives
BOTH selectedId and selectedName from the same eager-loaded navigation, and
GetRerunCollectionByIdHandler loads media metadata only for Show/Season/Artist/Movie
while MediaCollections/Mapper maps RemoteStream through `_ => null`. So opening a
RemoteStream rerun collection returned HTTP 200 with a null selection and the edit-load
refresh CLEARED a stored id, leaving Save permanently disabled. The refresh now merges
instead of replacing, so no path can clear an id it merely failed to name; the label
degrades to `#id`. Covered per affected type — RemoteStream, Episode, MusicVideo, Song,
OtherVideo, Image — plus a re-save assertion. The read-model gaps themselves are
server-side and are NOT touched here.

F2: `&` and `|` were missing from the escaped set, so `Rock && Roll` compiled with the
boolean operator live. Pre-existing in Auto-Tune's original helper, but propagated to
three more pickers — and now fixed for Auto-Tune too, since the helper is shared. The
test that claimed to cover "every Lucene special" carried its own hand-copied sample and
could not see its own omissions; it is now driven per-character off an exported
LIBRARY_PICKER_LUCENE_SPECIALS.

F3: a slow edit-load name resolution could relabel a newer selection. The label is now
keyed to the id it was resolved for AND refuses to overwrite a label naming a different
id — keying the render alone stops the mislabelling but discards the correct new label.

F4: searchLibraryPickerOptions clamps pageSize instead of merely defaulting it. A bound a
caller can exceed is not a bound.

F6: replacing a native <select> with an input+listbox dropped keyboard operability. Full
ARIA combobox pattern added — role/aria-expanded/aria-controls/aria-autocomplete,
Arrow/Home/End over aria-activedescendant, Enter to commit, Escape to dismiss, options as
non-tab-stops, cursor reset on each new result set.

F7: both is-mounted tests were unsound. React 19 no longer warns on setState-after-unmount
and an unmounted tree renders nothing either way, so the DOM assertion could not fail; the
hook re-arm test used rerender rather than an effect cleanup. Now: a hook-module mock
proving SearchPicker actually reads the guard and sees false, and a StrictMode
double-invoke for the re-arm. Both verified by removing the mechanism and watching them
fail. Same for the LCG divisor, which now has a direct boundary test.

F5 (FillerPresets collection-family names) is filed as #670, not fixed here.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothyandClaude Opus 5 fad6805b91 feat(651): media-library pickers resolve by search instead of a bounded window
The three `getLibraryBrowseItems` pickers (RerunCollectionsScreen, PlaylistsScreen,
FillerPresetsScreen) populated a native <select> from a 100-row window over media-library
tables that can hold tens of thousands of rows. #644 made that truncation visible; it did
not make the picker usable, and paging to completeness would have been worse than the bug
(~200 serial requests, each more expensive than the last).

They now resolve by SEARCH through the shared `SearchPicker` over a new
`searchLibraryPickerOptions` helper: zero requests on mount or on a type switch, at most ONE
bounded request (25 rows) per settled query, nothing below 2 characters. Typed text is
compiled via the now-shared `titleContainsQuery` (`title:*<escaped>*`) rather than forwarded
raw, since the index's default field does not match bare title words. The current selection
renders from the owning record — `selectedName` for rerun collections and playlist items, and
for filler presets (which store only an id) a single by-id detail read — so editing an
existing record can never lose or fail to name its selection.

Class A stays put: bounded-by-construction admin lists still page to completeness via
`loadAllPages`, and the collection-family filler-preset types keep their bounded single page
(their `query` is a SQL LIKE, which a compiled Lucene query would not match). No server-side
cap is raised; this is a web-only change.

Folded in from #578: the rule-builder facet typeahead arms on focus rather than on mount (an
N-rule tree fired N unrequested lookups), both typeaheads pair their `seqRef` guard with a
shared `useIsMountedRef`, and the roundtrip test's LCG divides by 2^32 so `pick()` can no
longer index one past the end.

Decision record `spa.list-completeness-vs-bounded-pickers` is archived as superseded by the
new `spa.library-pickers-resolve-by-search`; spa-conventions §3b rewritten to match.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-27 04:25:14 +02:00
timothy daedf003e5 fix(644): round-3 review — split truncated/incomplete picker hints, F2 out-of-list gaps, F3 abort warns, F4 aria wiring, F5 FillerPresetsScreen tests
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review-verdict/h10 Review-verdict: MERGEABLE @ daedf00
Addresses the round-3 cold re-review's five low-severity findings on #644's client-side paging fix:

- F1: `loadPickerOptions` (RerunCollectionsScreen, PlaylistsScreen) returned one `truncated:
  boolean` for two different conditions — a real Class B cap hit vs an unconverged Class A
  `loadAllPages` load — so an incomplete multi-collection load rendered the self-contradictory
  "Showing the first 47 of 47 — use search to narrow." Replaced with a `hint: 'incomplete' | 'none'
  | 'truncated'` discriminator and distinct copy per value; 'incomplete' matches the wording already
  used by the Class A list-load warn Badge.
- F2: mirrored the out-of-list current-selection injection (RerunCollectionsScreen/PlaylistsScreen's
  `selectedInList` prepend) into FillerPresetsScreen and ScheduleItemInspector's rerun-collection
  picker, so an id outside the loaded page still renders as selected instead of misrepresenting the
  stored value as "(none)".
- F3: gated the `console.warn` on an incomplete Class A load with `!signal?.aborted` in the `multi`
  branches (RerunCollectionsScreen, PlaylistsScreen) and SchedulesScreen.loadAllRerunCollections, so
  a superseded/aborted load (Retry, or a type switch mid-load) no longer logs a false warning.
- F4: added `Select`'s `ariaDescribedBy` prop and wired the truncation/incomplete hint span to it via
  `useId()` in RerunCollectionsScreen and PlaylistsScreen, so screen readers announce the hint
  (FillerPresetsScreen already routed it through `Row help=`).
- F5: added FillerPresetsScreen.test.tsx (previously untested) covering the Class B single-request
  guarantee, the truncation hint's totalCount>100/<=100 boundary, and the F2 injection; added the
  two assertions the re-review found missing anywhere in the suite — the Class A `incomplete` warn
  Badge actually rendering, and a screen-level seqRef stale-overwrite race — to
  RerunCollectionsScreen.test.tsx.

Updates docs/spa-conventions.md §3b and the
spa.list-completeness-vs-bounded-pickers decision record to describe the hint discriminator.

Decisions-Edit: yes
2026-07-26 21:29:53 +02:00
timothyandClaude Opus 5 94182cdd53 fix(644): split loadAllPages by list class; bound media-library pickers to one page
Cold adversarial review of fe342a6a found the blanket loadAllPages-everywhere fix
dangerous for the three getLibraryBrowseItems pickers (RerunCollectionsScreen,
PlaylistsScreen, FillerPresetsScreen): paging Episode/Song/Image/Movie/MusicVideo
to completeness can mean ~200 serial requests against a 20k-row library, each more
expensive than the last, to populate a <select> with thousands of <option> nodes.

- Class A (bounded-by-construction lists: rerun collections, multi-collections,
  playlists) keep loadAllPages. Class B (media-library pickers) now fetch ONE
  bounded page and surface truncation via a `Showing the first N of M` hint wired
  to the real totalCount, instead of paging to completeness or truncating silently.
- loadAllPages: reports `{ items, complete }` instead of just `T[]` so a caller
  can no longer mistake a defensive empty-page break for a full list (F4); accepts
  an optional AbortSignal so a superseded loop stops issuing further page requests
  (F2); baseParams is now required via a conditional rest-tuple whenever the
  loader's params type has a field beyond pageNum/pageSize (F6); pushes into the
  accumulator instead of re-spreading it every page (F7).
- MultiCollectionsScreen/RerunCollectionsScreen/SchedulesScreen: add a seqRef +
  AbortController guard around the list/bootstrap loads so a stale loadAllPages
  loop can't resolve after a newer one and resurrect deleted rows (F3); log and
  surface an incomplete load rather than rendering it as whole.
- docs/spa-conventions.md §3b rewritten for the Class A / Class B split; new
  decision record docs/decisions/records/spa/list-completeness-vs-bounded-pickers.md
  (spa.list-completeness-vs-bounded-pickers), catalog regenerated.
- Tests: paging.test.ts covers null/undefined totalCount, null page, a
  short-but-non-empty page, a page-2 rejection, the complete:false flag, and
  cancellation (asserting fetch call COUNT stays put after abort), plus a
  compile-time @ts-expect-error pinning the F6 typing fix. Screen-level tests
  pin a real second HTTP request for a >100-item Class A list
  (MultiCollectionsScreen) and exactly one /library/browse request plus the
  truncation hint for a Class B picker (RerunCollectionsScreen).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-26 21:04:55 +02:00
timothy fba5233caf feat(610): split the decision corpus into one YAML-frontmatter file per record
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168 records -> docs/decisions/records/<area>/<topic>.md (163 active, 23 dirs) and
docs/decisions/archive/<area>/<topic>.md (5 archived). The filename IS the key,
so one-active-record-per-key becomes a filesystem property rather than a
validator check, and supersession becomes a `git mv`.

WHY: the monolith was a concurrency problem before an aesthetic one. A
3,900-line append target made parallel sessions collide -- PR #605 and PR #614
both hit append-vs-append conflicts during routine rebases, and hand-resolving
those inside the corpus is exactly the operation the rationale-rewrite guard
exists to police.

HOW IT IS VERIFIED: a ~170-file diff cannot be meaningfully read, so correctness
does not rest on reading it. The parser was taught BOTH formats first, so the
body-diff guard parses the old form at the merge-base and the new form at head --
the migration validates itself, no bypass. The proof is a field-level equivalence
harness: 168 records before and after, zero lost, zero gained, zero field
mismatches, zero rationale bodies differing. Reviewers should scrutinise the
harness; it is the actual evidence.

What measuring caught that reading would not have:

- ~500 lines sit OUTSIDE any record -- decisions.md's lifecycle schema and each
  topic file's preamble, mostly the only copy. Source files are kept and
  stripped, never deleted. They also cannot be filed per-area: topic files hold
  several areas and 4 of 23 areas span several files.
- Archive discovery was a non-recursive glob; after the split it found ZERO
  archived records, surfacing as four bogus "supersedes points to unknown key"
  errors rather than an obvious failure.
- ~32 live docs point into the corpus BY DATE, which the split dangles. Each
  stripped file now ends with a generated "Records formerly in this file" index,
  which also rescues the identical breadcrumbs in old issue comments.
- decisions.md's "In this file:" list was 97 same-file anchor bullets that the
  split makes WRONG, not merely stale. Dropped; the generated index replaces
  them with links that resolve.

The equivalence harness now runs against a checked-in FIXTURE, not the live
corpus. The earlier version migrated the real tree, which made it a one-shot:
the moment the migration landed there was nothing left to move and the tests
failed for reasons unrelated to the code. A fixture keeps them testing the
SCRIPT rather than the repo's current state.

Keys preserved verbatim, warts included: `sched` (12) and `scheduling` (1) remain
two directories for one concept. Renaming a key is not a move -- it changes
identity, breaks the equivalence proof, and invalidates MemPalace's per-key
drawers. Taxonomy normalisation is separate work.

refs #610
2026-07-25 19:45:09 +02:00