feat(spec): a joined report's block headings and a master-detail field's inline grid heading are translatable (#26757)

<!-- claude-projects-attribution: {"github_login":"os-support-ai"} -->
_Requested by **Yibo Wang** · [project
thread](https://claude.ai/code/project/chan_01BVUyyPie8gHwoPM18iABwB?thread=cmsg_01BVUyyPie8gHwoPM18iABwBBHHmbAUS4ebUhc4iQ5UTie)_
Fixes #26112
Fixes #26142

Clause-②: yes
Metadata-protocol: added
Skills-docs: follow-up owed #26759 — `skills/objectstack-i18n/SKILL.md`
(the `fields.{field_name}` row and the `reports` sentence) misses
`inlineTitle` and `reports.{report}.blocks.{block}`; `skills/**` is Tier
H, so the two-line edit rides that card after this PR lands

## 维护者速读

- 改了什么:翻译包新增两个槽位——联合报表每个区块的标题/说明(`reports.REPORT.blocks.BLOCK.label` /
`.description`),以及主从字段的内嵌表格标题(`objects.CHILD.fields.FIELD.inlineTitle`);服务端翻译器按请求语言覆盖,`os
i18n extract` / `check` 也开始统计这两个键。
- 为什么改:中文用户打开联合报表时标题是中文、区块标题却是英文;新建表单上的内嵌子表标题(如「Line
Items」)也一直是英文,因为翻译包根本没有地方放这些译文,覆盖率检查也看不到缺口。
- 风险与回滚:只新增可选键,已有翻译包与元数据不受影响;组织自行改过的区块标题或内嵌标题仍保留原文(与报表标题同一规则)。回滚即撤销本 PR。
- 先看:`packages/spec/src/system/i18n-resolver.ts`(`translateReportBlocks`
与 `translateObject` 字段处理中的
`inlineTitle`)、`packages/spec/src/system/translation.zod.ts`(两个新槽位)、`packages/cli/src/utils/i18n-extract.ts`(`walkReports`
与字段遍历)。
- 两分钟验证:`pnpm --filter @objectstack/example-showcase exec vitest run
test/zh-cn-report-blocks-inline-titles.test.ts`,预期 3
个用例通过:示例应用的联合报表区块显示「未完成任务 / 已完成任务」,发票与费用报销的内嵌表格标题显示「发票明细 / 费用明细」。
- 需要你做的:无,席位落地。

## What changes

- **Spec face** (`translation.zod.ts`): `FieldTranslationSchema` gains
`inlineTitle`; the `reports` group gains `blocks`, a record keyed by the
joined block's required `name`, closed at `label` / `description`
(aliases `name` / `title` / `heading` onto `label`).
- **Serving translators** (`i18n-resolver.ts`): `translateReport`
overlays each block through a new `translateReportBlocks`;
`translateObject`'s field pass overlays `inlineTitle`. Both follow the
packaged-base rule (ADR-0029 D9.2a), judged per block (matched by
`name`) and per field. A document whose blocks and fields the bundle
does not address comes back as the same reference.
- **Landing point, measured:** both labels already reach the console as
the served document. The joined renderer
(`ui/packages/plugin-report/src/DatasetReportRenderer.tsx`) draws
`block.label` off `GET /meta/report`, and `attachInlineSubforms`
(`ui/packages/app-shell/src/providers/MetadataProvider.tsx`) copies the
child field's `inlineTitle` off `GET /meta/object`, both localized at
the REST boundary. So the fix lands in the two translators, and neither
ui file changes.
- **#26142 fallback decision:** no fallback to the child object's
translated plural label. An authored `inlineTitle` with no entry keeps
its authored text, because a bundle translates an attribute and never
swaps another attribute in over authored text (the rule
`pages.PAGE.title` follows). An absent `inlineTitle` already renders the
child's translated label.
- **Extract / check** (`i18n-extract.ts`): `walkReports` walks
`blocks[]`, the field walk emits `inlineTitle`, both via `pushOptional`
(a block without a `label`, or a field without an `inlineTitle`, is
recorded and never demanded). `os i18n check` counts them through the
same entries: blocks in the report bucket, `inlineTitle` in the field
bucket.
- **Examples:** the showcase zh-CN bundle translates both blocks of
`showcase_task_overview` and the invoice / expense-report inline
headings; the CRM zh-CN bundle translates the opportunity's product grid
heading. Each key is translated at birth, so `check:i18n-coverage` stays
at its baseline (527, none new).
- **Ledgers and generated files:** a `reports.blocks` liveness row with
`label` / `description` children (translation 36 → 38 live), plus
`gen:api-surface`, `gen:export-origins`, `gen:docs`,
`gen:strictness-ledger`, `gen:liveness-counts` output.

## Tests

- `packages/spec/src/system/i18n-report-blocks.test.ts` (10): the slot
at all three doors, the closed face, the `title` alias, the overlay, the
BCP-47 ladder, reference identity, and the packaged-base rule per block.
- `packages/spec/src/system/i18n-field-inline-title.test.ts` (7): the
slot, a non-string refusal, the overlay through the type dispatch with
no `unrecognized_keys`, no plural-label fallback, and the packaged-base
rule.
- `packages/cli/test/i18n-block-inline-title-walk.test.ts` (5): the
extracted keys, unwritten strings recorded without being demanded, the
bundle round trip, and coverage reporting both gaps and then clearing
them.
- `examples/app-showcase/test/zh-cn-report-blocks-inline-titles.test.ts`
(3): the acceptance pin for both cards, on the app's own metadata and
bundle.

## Acceptance notes

- `validate-translation-references` (lint) checks that `reports.REPORT`
names a real report, but it does not check that `blocks.BLOCK` names a
real block of that report, so a mistyped block key resolves nothing
without an orphan finding. This is noted, not filed.
- The joined renderer's `resolveText` reads an inline locale map's
`default` only. That predates this change and is unrelated to the bundle
path.

## Verification

All readings were taken at `bcbc83749` (after merging `origin/main`
`5cc31c788` through `os-regen-merge.sh`) unless marked as taken at
`595f62162` (the pre-merge head).

<details><summary>Tests and typecheck</summary>

- `pnpm --filter @objectstack/spec test` (595f621): Test Files 733
passed, Tests 21938 passed / 1 todo.
- `pnpm --filter @objectstack/spec test:repo` (595f621): Test Files 80
passed, Tests 1295 passed.
- `pnpm --filter @objectstack/cli exec vitest run --project unit`
(595f621): Test Files 340 passed, Tests 4928 passed. The integration
tier is left to CI: no spawn entry or integration file is touched.
- `pnpm --filter @objectstack/runtime test` (595f621): Test Files 459
passed, Tests 7443 passed / 19 skipped.
- typecheck for spec, cli, example-showcase and example-crm (595f621):
all exit 0.
- After the merge (bcbc837): `src/system/` + `src/ui/report*` spec
tests 64 files / 2150 tests, the two cli i18n walk files 9 tests, and
the showcase pin 3 tests, all passing.
- The ui packages are untouched, so no ui test run is owed.

</details>

<details><summary>Ablations (one per behaviour; src-resolved suites,
each restored byte-identical by blob hash)</summary>

- `translateReport` with the block pass removed:
`i18n-report-blocks.test.ts` 6 failed / 4 passed.
- `translateObject` with the `inlineTitle` assignment removed:
`i18n-field-inline-title.test.ts` 3 failed / 4 passed.
- extract with the `inlineTitle` push deleted: the cli walk test 3
failed / 2 passed.
- extract with the block `label` push deleted: the cli walk test 4
failed / 1 passed.

</details>

<details><summary>Gates</summary>

- `node scripts/pm/dispatch-gates.mjs --commands --repo
objectstack-ai/objectstack` derived 109 families (595f621; the
derivation at bcbc837 is the same list). 107 exit 0. Two exit 3
(prerequisite: a whole-repo build), `spec check:skill-examples` and
`check:dual-build-cjs-loads`, are NOT MEASURED locally and left to CI.
`--ran` reconciliation: 109 derived, 107 run, 2 NOT-MEASURED, 0 UNRUN.
- Re-run at bcbc837 after the merge: `check:i18n`,
`check:i18n-coverage`, `check:i18n-walk-parity`, spec `check:liveness`,
`check:empty-state`, `check:strictness-ledger`, `check:api-surface`,
`check:authorable-surface`, `check:generated`, `check:nul-bytes`, all
exit 0.
- No full dogfood run: there is no `!` in the title and no `(narrowing)`
arm.

</details>

---
_Generated by [Claude
Code](https://claude.ai/code/session_01WGufziF7p6fS8zz6Gtt1gq)_

---------

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

Author: objectstack-fleet[bot]

.changeset/26112-26142-block-inline-title-translations.md

@@ -0,0 +1,18 @@
+---
+'@objectstack/spec': minor
+'@objectstack/cli': minor
+---
+
+feat(spec): a joined report's block headings and a master-detail field's inline grid heading are translatable
+
+Clause-②: yes
+Metadata-protocol: added
+
+Two authored, user-visible labels had no translation slot, so a zh-CN user read them in the authoring language and `os i18n check` could not see the gap:
+
+- **A joined report's blocks.** The `reports` translation group declares `blocks`, keyed by the block's `name`: `reports.<report>.blocks.<block>.label` / `.description`. `translateReport` overlays them on each block of the served report (`GET /meta/report`), which is what the joined renderer draws above each block.
+- **A field's `inlineTitle`.** `FieldTranslationSchema` declares `inlineTitle`: `objects.<child>.fields.<field>.inlineTitle`, on the child object whose master-detail (or lookup) field declares the heading. `translateObject` overlays it on the served child object (`GET /meta/object`), which is what the console copies onto the parent's form as the inline grid's heading.
+
+Both follow the packaged-base rule (ADR-0029 D9.2a): a string an org re-authored on top of the packaged declaration keeps its text. An authored `inlineTitle` with no entry keeps its authored text; the child object's plural label is never substituted for it.
+
+`os i18n extract` scaffolds both keys and `os i18n check` counts them: a block's `label` / `description` under the report bucket, `inlineTitle` under the field bucket. A block without a `label`, or a field without an `inlineTitle`, is recorded without being demanded.

content/docs/references/api/protocol.mdx

@@ -1778,7 +1778,7 @@ The published metadata item body, opaque by ruling (1C). Shape is the item's own
 | **globalActions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Global action translations keyed by action name |
 | **dashboards** | `Record<string, { label?: string; description?: string; actions?: Record<string, object>; widgets?: Record<string, object>; … }>` | optional | Dashboard translations keyed by dashboard name |
 | **datasets** | `Record<string, { label?: string; description?: string; dimensions?: Record<string, object>; measures?: Record<string, object> }>` | optional | Analytics dataset translations keyed by dataset name |
-| **reports** | `Record<string, { label?: string; description?: string }>` | optional | Report translations keyed by report name |
+| **reports** | `Record<string, { label?: string; description?: string; blocks?: Record<string, object> }>` | optional | Report translations keyed by report name |
 | **pages** | `Record<string, { label?: string; description?: string; title?: string; subtitle?: string; … }>` | optional | Page translations keyed by page name |
 | **flows** | `Record<string, { label?: string; successMessage?: string; errorMessage?: string; screens?: Record<string, object>; … }>` | optional | Screen-flow translations keyed by flow name |
 | **positions** | `Record<string, { label?: string; description?: string }>` | optional | Position translations keyed by position name |

content/docs/references/system/translation.mdx

@@ -66,6 +66,7 @@ Translation data for a single field
 | **help** | `string` | optional | Translated help text |
 | **placeholder** | `string` | optional | Translated placeholder text for form inputs |
 | **options** | `Record<string, string>` | optional | Option value to translated label map |
+| **inlineTitle** | `string` | optional | Translated inline master-detail grid title — overlays the field's own `inlineTitle` |
 
 
 ---
@@ -90,7 +91,7 @@ Translation data for a single object
 | **label** | `string` | optional | Translated singular label |
 | **pluralLabel** | `string` | optional | Translated plural label |
 | **description** | `string` | optional | Translated object description |
-| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string> }>` | optional | Field-level translations |
+| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string>; … }>` | optional | Field-level translations |
 | **_views** | `Record<string, { label?: string; description?: string; title?: string; emptyState?: object; … }>` | optional | View translations keyed by view name |
 | **_actions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Action translations keyed by action name |
 | **_sections** | `Record<string, { label?: string; description?: string; fields?: Record<string, object> }>` | optional | Section translations keyed by section name |
@@ -107,6 +108,7 @@ Translation data for a single field
 | **help** | `string` | optional | Translated help text |
 | **placeholder** | `string` | optional | Translated placeholder text for form inputs |
 | **options** | `Record<string, string>` | optional | Option value to translated label map |
+| **inlineTitle** | `string` | optional | Translated inline master-detail grid title — overlays the field's own `inlineTitle` |
 
 ### Nested Shape: `ObjectTranslationData._views[string]`
 
@@ -177,7 +179,7 @@ Platform translation data — the per-app groups plus the platform-only `setting
 | **globalActions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Global action translations keyed by action name |
 | **dashboards** | `Record<string, { label?: string; description?: string; actions?: Record<string, object>; widgets?: Record<string, object>; … }>` | optional | Dashboard translations keyed by dashboard name |
 | **datasets** | `Record<string, { label?: string; description?: string; dimensions?: Record<string, object>; measures?: Record<string, object> }>` | optional | Analytics dataset translations keyed by dataset name |
-| **reports** | `Record<string, { label?: string; description?: string }>` | optional | Report translations keyed by report name |
+| **reports** | `Record<string, { label?: string; description?: string; blocks?: Record<string, object> }>` | optional | Report translations keyed by report name |
 | **pages** | `Record<string, { label?: string; description?: string; title?: string; subtitle?: string; … }>` | optional | Page translations keyed by page name |
 | **flows** | `Record<string, { label?: string; successMessage?: string; errorMessage?: string; screens?: Record<string, object>; … }>` | optional | Screen-flow translations keyed by flow name |
 | **positions** | `Record<string, { label?: string; description?: string }>` | optional | Position translations keyed by position name |
@@ -195,7 +197,7 @@ Translation data for a single object
 | **label** | `string` | optional | Translated singular label |
 | **pluralLabel** | `string` | optional | Translated plural label |
 | **description** | `string` | optional | Translated object description |
-| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string> }>` | optional | Field-level translations |
+| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string>; … }>` | optional | Field-level translations |
 | **_views** | `Record<string, { label?: string; description?: string; title?: string; emptyState?: object; … }>` | optional | View translations keyed by view name |
 | **_actions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Action translations keyed by action name |
 | **_sections** | `Record<string, { label?: string; description?: string; fields?: Record<string, object> }>` | optional | Section translations keyed by section name |
@@ -254,6 +256,7 @@ Translation data for a single object
 | :--- | :--- | :--- | :--- |
 | **label** | `string` | optional | Translated report label — overlays the report's own `label` |
 | **description** | `string` | optional | Translated report description — overlays the report's own `description` |
+| **blocks** | `Record<string, { label?: string; description?: string }>` | optional | Joined report block translations keyed by block name |
 
 ### Nested Shape: `PlatformTranslationData.pages[string]`
 
@@ -334,7 +337,7 @@ Served translation data — the platform groups the browser reads, without the s
 | **globalActions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Global action translations keyed by action name |
 | **dashboards** | `Record<string, { label?: string; description?: string; actions?: Record<string, object>; widgets?: Record<string, object>; … }>` | optional | Dashboard translations keyed by dashboard name |
 | **datasets** | `Record<string, { label?: string; description?: string; dimensions?: Record<string, object>; measures?: Record<string, object> }>` | optional | Analytics dataset translations keyed by dataset name |
-| **reports** | `Record<string, { label?: string; description?: string }>` | optional | Report translations keyed by report name |
+| **reports** | `Record<string, { label?: string; description?: string; blocks?: Record<string, object> }>` | optional | Report translations keyed by report name |
 | **pages** | `Record<string, { label?: string; description?: string; title?: string; subtitle?: string; … }>` | optional | Page translations keyed by page name |
 | **flows** | `Record<string, { label?: string; successMessage?: string; errorMessage?: string; screens?: Record<string, object>; … }>` | optional | Screen-flow translations keyed by flow name |
 | **positions** | `Record<string, { label?: string; description?: string }>` | optional | Position translations keyed by position name |
@@ -351,7 +354,7 @@ Translation data for a single object
 | **label** | `string` | optional | Translated singular label |
 | **pluralLabel** | `string` | optional | Translated plural label |
 | **description** | `string` | optional | Translated object description |
-| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string> }>` | optional | Field-level translations |
+| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string>; … }>` | optional | Field-level translations |
 | **_views** | `Record<string, { label?: string; description?: string; title?: string; emptyState?: object; … }>` | optional | View translations keyed by view name |
 | **_actions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Action translations keyed by action name |
 | **_sections** | `Record<string, { label?: string; description?: string; fields?: Record<string, object> }>` | optional | Section translations keyed by section name |
@@ -410,6 +413,7 @@ Translation data for a single object
 | :--- | :--- | :--- | :--- |
 | **label** | `string` | optional | Translated report label — overlays the report's own `label` |
 | **description** | `string` | optional | Translated report description — overlays the report's own `description` |
+| **blocks** | `Record<string, { label?: string; description?: string }>` | optional | Joined report block translations keyed by block name |
 
 ### Nested Shape: `ServedTranslationData.pages[string]`
 
@@ -552,7 +556,7 @@ Per-app translation data for objects, apps, and UI messages
 | **globalActions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Global action translations keyed by action name |
 | **dashboards** | `Record<string, { label?: string; description?: string; actions?: Record<string, object>; widgets?: Record<string, object>; … }>` | optional | Dashboard translations keyed by dashboard name |
 | **datasets** | `Record<string, { label?: string; description?: string; dimensions?: Record<string, object>; measures?: Record<string, object> }>` | optional | Analytics dataset translations keyed by dataset name |
-| **reports** | `Record<string, { label?: string; description?: string }>` | optional | Report translations keyed by report name |
+| **reports** | `Record<string, { label?: string; description?: string; blocks?: Record<string, object> }>` | optional | Report translations keyed by report name |
 | **pages** | `Record<string, { label?: string; description?: string; title?: string; subtitle?: string; … }>` | optional | Page translations keyed by page name |
 | **flows** | `Record<string, { label?: string; successMessage?: string; errorMessage?: string; screens?: Record<string, object>; … }>` | optional | Screen-flow translations keyed by flow name |
 | **positions** | `Record<string, { label?: string; description?: string }>` | optional | Position translations keyed by position name |
@@ -569,7 +573,7 @@ Translation data for a single object
 | **label** | `string` | optional | Translated singular label |
 | **pluralLabel** | `string` | optional | Translated plural label |
 | **description** | `string` | optional | Translated object description |
-| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string> }>` | optional | Field-level translations |
+| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string>; … }>` | optional | Field-level translations |
 | **_views** | `Record<string, { label?: string; description?: string; title?: string; emptyState?: object; … }>` | optional | View translations keyed by view name |
 | **_actions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Action translations keyed by action name |
 | **_sections** | `Record<string, { label?: string; description?: string; fields?: Record<string, object> }>` | optional | Section translations keyed by section name |
@@ -628,6 +632,7 @@ Translation data for a single object
 | :--- | :--- | :--- | :--- |
 | **label** | `string` | optional | Translated report label — overlays the report's own `label` |
 | **description** | `string` | optional | Translated report description — overlays the report's own `description` |
+| **blocks** | `Record<string, { label?: string; description?: string }>` | optional | Joined report block translations keyed by block name |
 
 ### Nested Shape: `TranslationData.pages[string]`
 
@@ -729,7 +734,7 @@ One locale of translations — the `translation` metadata type
 | **globalActions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Global action translations keyed by action name |
 | **dashboards** | `Record<string, { label?: string; description?: string; actions?: Record<string, object>; widgets?: Record<string, object>; … }>` | optional | Dashboard translations keyed by dashboard name |
 | **datasets** | `Record<string, { label?: string; description?: string; dimensions?: Record<string, object>; measures?: Record<string, object> }>` | optional | Analytics dataset translations keyed by dataset name |
-| **reports** | `Record<string, { label?: string; description?: string }>` | optional | Report translations keyed by report name |
+| **reports** | `Record<string, { label?: string; description?: string; blocks?: Record<string, object> }>` | optional | Report translations keyed by report name |
 | **pages** | `Record<string, { label?: string; description?: string; title?: string; subtitle?: string; … }>` | optional | Page translations keyed by page name |
 | **flows** | `Record<string, { label?: string; successMessage?: string; errorMessage?: string; screens?: Record<string, object>; … }>` | optional | Screen-flow translations keyed by flow name |
 | **positions** | `Record<string, { label?: string; description?: string }>` | optional | Position translations keyed by position name |
@@ -756,7 +761,7 @@ Translation data for a single object
 | **label** | `string` | optional | Translated singular label |
 | **pluralLabel** | `string` | optional | Translated plural label |
 | **description** | `string` | optional | Translated object description |
-| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string> }>` | optional | Field-level translations |
+| **fields** | `Record<string, { label?: string; help?: string; placeholder?: string; options?: Record<string, string>; … }>` | optional | Field-level translations |
 | **_views** | `Record<string, { label?: string; description?: string; title?: string; emptyState?: object; … }>` | optional | View translations keyed by view name |
 | **_actions** | `Record<string, { label?: string; description?: string; confirmText?: string; successMessage?: string; … }>` | optional | Action translations keyed by action name |
 | **_sections** | `Record<string, { label?: string; description?: string; fields?: Record<string, object> }>` | optional | Section translations keyed by section name |
@@ -815,6 +820,7 @@ Translation data for a single object
 | :--- | :--- | :--- | :--- |
 | **label** | `string` | optional | Translated report label — overlays the report's own `label` |
 | **description** | `string` | optional | Translated report description — overlays the report's own `description` |
+| **blocks** | `Record<string, { label?: string; description?: string }>` | optional | Joined report block translations keyed by block name |
 
 ### Nested Shape: `TranslationItem.pages[string]`
 

docs/audits/2026-07-unknown-key-strictness-ledger.counts/system.md

@@ -19,4 +19,4 @@ hand-patch a number here** — fix the code or the verdict and regenerate.
 
 | Dir | Sites |
 |---|---|
-| `system/` | 383 |
+| `system/` | 384 |

examples/app-crm/src/translations/crm.translation.ts

@@ -92,6 +92,13 @@ export const CrmTranslationBundle = defineTranslationBundle({
 
   'zh-CN': {
     objects: {
+      // The inline product grid's heading on the opportunity form. The field
+      // lives on the line item, so the key is the line item's.
+      crm_opportunity_line_item: {
+        fields: {
+          opportunity: { inlineTitle: '产品明细' },
+        },
+      },
       crm_account: {
         label: '客户',
         pluralLabel: '客户列表',

examples/app-showcase/src/system/translations/index.ts

@@ -782,13 +782,18 @@ export const ShowcaseTranslationBundle = {
       showcase_expense_line: {
         fields: {
           incurred_at: { label: '发生时间' },
+          // The inline grid heading on the expense report's form — a key born
+          // with its slot, so it is translated at birth like the label above.
+          expense_report: { inlineTitle: '费用明细' },
         },
       },
       // See the `en` side for why this entry translates exactly ONE field and
       // no more (check-i18n-coverage is a two-sided ratchet).
       showcase_invoice_line: {
         fields: {
           service_start: { label: '服务开始时间' },
+          // The inline grid heading on the invoice form, translated at birth.
+          invoice: { inlineTitle: '发票明细' },
         },
       },
       showcase_preference: {
@@ -1349,7 +1354,15 @@ export const ShowcaseTranslationBundle = {
     reports: {
       showcase_hours_by_status: { label: '按状态统计工时（汇总）', description: '按任务状态分组的预计工时。' },
       showcase_status_priority_matrix: { label: '状态 × 优先级（矩阵）', description: '按状态和优先级交叉统计的预计工时。' },
-      showcase_task_overview: { label: '任务概览（联合）', description: '将多个任务子报表堆叠在一个联合视图中。' },
+      showcase_task_overview: {
+        label: '任务概览（联合）',
+        description: '将多个任务子报表堆叠在一个联合视图中。',
+        // The joined report's block headings, keyed by block `name`.
+        blocks: {
+          open_block: { label: '未完成任务' },
+          done_block: { label: '已完成任务' },
+        },
+      },
       showcase_hours_by_status_chart: { label: '按状态统计工时（图表）', description: '以柱状图展示按状态统计的预计工时。' },
     },
   },