fix(plugin-calendar): name the object by its label when a reschedule finds the record gone (#31528)

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_Requested by **Steedos** · [project
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Fixes #31494

Clause-②: yes (widening)
Metadata-protocol: none

## 维护者速读

- **改了什么:** 日历拖拽改期被服务端以 404 RECORD_NOT_FOUND 拒绝时,提示不再显示服务端原句(英文、带记录 id
和对象机器名),改为当前语言的一句话,用对象的显示名称指代对象;卡片照旧弹回原日期。
- **为什么改:** 中文会话下用户看到 `Record WB5z1sLAsWgE1tXL not found in
showcase_task` 这样的英文系统句,违反「显示名称优先于机器名」规范(QA #31486)。
- **风险与回滚:** 只在 404/RECORD_NOT_FOUND 分支生效;作者标注的
userMessage、外部数据源只读、权限拒绝三条分支仍排在前面不变。回滚即还原本 PR。
- **先看:** `ui/packages/plugin-calendar/src/ObjectCalendar.tsx`(新分支与
`isRecordNotFound`)、`ObjectCalendar.markedRefusalToast.test.tsx`(新
describe)、`ui/packages/i18n/src/locales/zh-Hans.ts`(新键译文)。
- **两分钟验证:** `cd ui && pnpm exec vitest run
packages/plugin-calendar/src/ObjectCalendar.markedRefusalToast.test.tsx`,预期
12 个用例全绿,其中 zh 用例读到「这条任务记录已不存在，或者您已无权访问它。」
- **需要你做的:** 无,席位落地。

## What changes

- **`@object-ui/plugin-calendar`:** `handleEventDropDefault`'s toast
chain gains one branch after the permission branch and before
`extractWriteErrorMessage`: a refusal whose code (on the error or its
`details`) is `RECORD_NOT_FOUND`, or whose status is 404, toasts
`calendar.rescheduleNotFound` with the object named by its label. The
label is the object schema's served `label` (already translated
server-side), else the app's convention-key translation via
`useSafeFieldLabel().objectLabel`, else no name at all: the toast then
says the existing `form.recordNotFoundOrHidden` sentence. The server's
sentence, the record id and the machine name never reach the toast. The
rollback of the optimistic move is unchanged. The classifier is a small
module-local `isRecordNotFound` built on `errorCodeIs` from
`@object-ui/types`: `is404Error` lives in `@object-ui/data-objectstack`,
which this package has only as a devDependency, so reusing it would have
meant a new runtime dependency edge.
- **`@object-ui/i18n`:** one new key, `calendar.rescheduleNotFound`, in
all eleven `locales/*.ts` packs; zh-Hant generated from zh-Hans with
`gen:zh-hant`. The sentence takes one placeholder, the object label.
- The shared `extractWriteErrorMessage` is not touched (no caller census
needed).

## Tests

New top-level describe in the existing harness
`ObjectCalendar.markedRefusalToast.test.tsx` (wire-shaped errors through
the real `normaliseClientError`, real MonthView drag):

- 404 RECORD_NOT_FOUND with a served label: the toast is the labelled en
sentence, contains no id, no machine name, no "not found in"; the event
is back on its own day and absent from the target day.
- The same under a zh `I18nProvider` with the label 任务: the toast is the
zh sentence.
- No label anywhere: the generic `form.recordNotFoundOrHidden` sentence,
no machine name.
- A 404 that carries a `userMessage` still renders the marking.
- The external-source refusal (EXTERNAL_WRITE_FORBIDDEN) keeps its
read-only sentence; an unmarked 403 keeps the permission substitution.

The test's drop-target lookup moved from the spoken cell label to the
day number of the current-month cell, so the zh render finds it too; the
previous `cellLabel` helper is removed.

## Acceptance notes

- The same raw-sentence shape likely exists on other write toasts that
end in `extractWriteErrorMessage` (11 non-test files under `ui/packages`
and `ui/apps` call it, `git grep` at d15c0ad). Not changed here; the
card scoped the fix to the calendar toast.

## Verification

<details><summary>Local runs at a934d10 (suites re-run at
d15c0ad)</summary>

- `vitest run
packages/plugin-calendar/src/ObjectCalendar.markedRefusalToast.test.tsx`:
12/12 passed.
- `vitest run packages/plugin-calendar/ packages/i18n/`: Test Files 167
passed, Tests 2312 passed, 108 skipped.
- `turbo run type-check --filter=@object-ui/plugin-calendar
--filter=@object-ui/i18n`: 53/53 tasks successful.
- `eslint` on the two calendar files: 0 errors (warnings all on
untouched lines).
- Ablation (`scripts/ablation-replace.mjs`, the `isRecordNotFound(err)`
condition replaced by `false`): 3 failed, 9 passed; the three new
not-found cases received `Record v1 not found in visit`; restore
verified blob == HEAD, `git diff HEAD` empty.

</details>

<details><summary>Derived gates</summary>

`node scripts/pm/dispatch-gates.mjs --commands --repo
objectstack-ai/objectstack` derived 38 families; all 38 ran at a934d10
and exited 0; `--ran` reconciliation: 38 derived, 38 run, 0
NOT-MEASURED, 0 UNRUN.

```text
node scripts/check-adr-0087-registration.mjs --base origin/main :: exit 0
node scripts/check-adr-0087-registration.mjs --self-test :: exit 0
node scripts/check-changeset-no-major.mjs --base origin/main :: exit 0
node scripts/check-closing-keyword-parity.mjs :: exit 0
node scripts/check-closing-keyword-parity.mjs --self-test :: exit 0
node scripts/check-comment-mask-corpus.mjs :: exit 0
node scripts/check-empty-changeset.mjs --base origin/main :: exit 0
node scripts/check-empty-changeset.mjs --self-test :: exit 0
node scripts/check-sdui-manifest.mjs :: exit 0
node scripts/check-sdui-manifest.mjs --self-test :: exit 0
node scripts/ci/snapshot-next.mjs --self-test :: exit 0
node scripts/pm/release-rehearsal-clone.mjs --self-test :: exit 0
node scripts/release-pending-publish.mjs --self-test :: exit 0
pnpm --filter @objectstack/spec run check:duration-unit-keys :: exit 0
pnpm check:changeset-gate-self-tests :: exit 0
pnpm check:closed-ceremony-text :: exit 0
pnpm check:cross-package-test-inputs :: exit 0
pnpm check:dispatcher-error-vocabulary :: exit 0
pnpm check:driver-memory-census :: exit 0
pnpm check:engine-double-contract :: exit 0
pnpm check:gitlink-declared :: exit 0
pnpm check:merge-driver :: exit 0
pnpm check:nul-bytes :: exit 0
pnpm check:published-files :: exit 0
pnpm check:query-options-erasure :: exit 0
pnpm check:refd-timer-probe :: exit 0
pnpm check:registry-log-declared :: exit 0
pnpm check:rest-log-spy-declared :: exit 0
pnpm check:role-word :: exit 0
pnpm check:skill-identifier-liveness :: exit 0
pnpm check:test-source-alias :: exit 0
pnpm check:tier-file-adoption :: exit 0
pnpm check:type-check-coverage :: exit 0
pnpm check:type-check-debt :: exit 0
pnpm check:undeclared-dep-imports :: exit 0
pnpm check:watch-hint-literal :: exit 0
pnpm check:where-matcher :: exit 0
pnpm --dir ui exec vitest run scripts/ :: exit 0
```

After merging main (head d15c0ad, the derived list unchanged), the
ratchet and suite families were re-run: all exit 0, and the calendar +
i18n suites again passed 167/167 files.

```text
node scripts/check-sdui-manifest.mjs :: exit 0
pnpm check:cross-package-test-inputs :: exit 0
pnpm check:test-source-alias :: exit 0
pnpm check:type-check-coverage :: exit 0
pnpm check:type-check-debt :: exit 0
pnpm check:undeclared-dep-imports :: exit 0
pnpm check:published-files :: exit 0
pnpm check:nul-bytes :: exit 0
```

</details>

---
_Generated by [Claude
Code](https://claude.ai/code/session_01QsR2jSxTNXbFBqyMe2bkhV)_

Co-authored-by: Claude <noreply@anthropic.com>

Author: objectstack-fleet[bot]

.changeset/31494-calendar-reschedule-not-found.md

@@ -0,0 +1,12 @@
+---
+'@object-ui/plugin-calendar': patch
+'@object-ui/i18n': patch
+---
+
+fix(plugin-calendar): a reschedule of a record that is gone for this session toasts a translated sentence naming the object by its label
+
+Clause-②: yes (widening)
+Metadata-protocol: none
+
+- **`@object-ui/plugin-calendar`:** when a drag-to-reschedule is refused with `404 RECORD_NOT_FOUND` (the record was deleted, or row-level security no longer shows it to this user), the toast used to show the server's own sentence, "Record ID not found in OBJECT_NAME": English in every session, with the record id and the object's machine name. It now says, in the session language, that this record of the object (named by its label) no longer exists or is no longer accessible. The label is the one the object schema serves, else the app's translation of it; with neither, the toast says the existing generic "This record doesn't exist, or you don't have access to it." and never the machine name. The event still snaps back to its day. A refusal the producer marked for the user, an external-source refusal and a permission refusal keep their own messages, ahead of this one.
+- **`@object-ui/i18n`:** `calendar.rescheduleNotFound` in all eleven locale packs (zh-Hant generated from zh-Hans).

ui/packages/i18n/src/locales/ar.ts

@@ -864,6 +864,7 @@ const ar = {
     eventTitlePlaceholder: "ما موضوع هذا الحدث؟",
     creating: "جارٍ الإنشاء…",
     titleRequired: "العنوان مطلوب",
+    rescheduleNotFound: "سجل {{object}} هذا لم يعد موجودًا، أو لم يعد لديك إذن للوصول إليه.",
     a11y: {
       region: "التقويم",
       grid: "شبكة التقويم",

ui/packages/i18n/src/locales/de.ts

@@ -778,6 +778,7 @@ const de = {
     eventTitlePlaceholder: "Worum geht es bei diesem Termin?",
     creating: "Wird erstellt…",
     titleRequired: "Titel ist erforderlich",
+    rescheduleNotFound: "Dieser Datensatz ({{object}}) existiert nicht mehr, oder Sie haben keinen Zugriff mehr darauf.",
     a11y: {
       region: "Kalender",
       grid: "Kalenderraster",

ui/packages/i18n/src/locales/en.ts

@@ -1046,6 +1046,10 @@ const en = {
     eventTitlePlaceholder: 'What\'s this event about?',
     creating: 'Creating…',
     titleRequired: 'Title is required',
+    // A drag-to-reschedule the server refused because the record is gone for
+    // this session: deleted, or no longer visible to it. `{{object}}` is the
+    // object's label; with none to show, `form.recordNotFoundOrHidden` is used.
+    rescheduleNotFound: 'This {{object}} record no longer exists, or you no longer have access to it.',
     a11y: {
       region: 'Calendar',
       grid: 'Calendar grid',

ui/packages/i18n/src/locales/es.ts

@@ -803,6 +803,7 @@ const es = {
     eventTitlePlaceholder: "¿De qué trata este evento?",
     creating: "Creando…",
     titleRequired: "El título es obligatorio",
+    rescheduleNotFound: "Este registro de {{object}} ya no existe o ya no tienes acceso a él.",
     a11y: {
       region: "Calendario",
       grid: "Cuadrícula del calendario",

ui/packages/i18n/src/locales/fr.ts

@@ -798,6 +798,7 @@ const fr = {
     eventTitlePlaceholder: "De quoi s'agit-il ?",
     creating: "Création…",
     titleRequired: "Le titre est obligatoire",
+    rescheduleNotFound: "Cet enregistrement ({{object}}) n'existe plus, ou vous n'y avez plus accès.",
     a11y: {
       region: "Calendrier",
       grid: "Grille du calendrier",

ui/packages/i18n/src/locales/ja.ts

@@ -778,6 +778,7 @@ const ja = {
     eventTitlePlaceholder: "この予定の内容は？",
     creating: "作成中…",
     titleRequired: "タイトルは必須です",
+    rescheduleNotFound: "この{{object}}レコードは存在しないか、アクセス権がなくなりました。",
     a11y: {
       region: "カレンダー",
       grid: "カレンダーグリッド",

ui/packages/i18n/src/locales/ko.ts

@@ -778,6 +778,7 @@ const ko = {
     eventTitlePlaceholder: "이 일정은 어떤 내용인가요?",
     creating: "생성 중…",
     titleRequired: "제목을 입력하세요",
+    rescheduleNotFound: "이 {{object}} 레코드가 더 이상 존재하지 않거나 접근 권한이 없습니다.",
     a11y: {
       region: "캘린더",
       grid: "캘린더 그리드",

ui/packages/i18n/src/locales/pt-BR.ts

@@ -798,6 +798,7 @@ const pt = {
     eventTitlePlaceholder: "Sobre o que é este evento?",
     creating: "Criando…",
     titleRequired: "O título é obrigatório",
+    rescheduleNotFound: "Este registro de {{object}} não existe mais ou você não tem mais acesso a ele.",
     a11y: {
       region: "Calendário",
       grid: "Grade do calendário",

ui/packages/i18n/src/locales/ru.ts

@@ -821,6 +821,7 @@ const ru = {
     eventTitlePlaceholder: "О чём это событие?",
     creating: "Создание…",
     titleRequired: "Укажите название",
+    rescheduleNotFound: "Эта запись ({{object}}) больше не существует, или у вас больше нет к ней доступа.",
     a11y: {
       region: "Календарь",
       grid: "Сетка календаря",