fix(plugin-audit): localize select option labels in the tracked-change activity summary (#7289) (#7389)

`displayFieldValue` rendered a select/picklist value by returning the matching
option's authored `label` from `engine.getSchema(name)` — locale-independent
metadata — while the shipped bundles carry those labels under
`objects.<object>.fields.<field>.options.<value>`. After #7230 localized the
field label, a zh-CN workspace read `阶段: Proposal → Closed Won`.

The tracked-change branch now resolves the option label through the same
locale-bound translator its field label already uses, authored label as
fallback. The fired-milestone branch is deliberately NOT localized and the
opt-out is by construction: it passes no option resolver, so its author-written
sentence and the author's own option label stay in one language.

Zero added reads on every write shape — a bundle lookup, not I/O — so #6656 /
PR #6977's retirement, preserved by #7291 and #7333, still stands, and
`displayFieldValue` stays synchronous.


Claude-Session: https://claude.ai/code/session_01BM1tNf5U3nEbHKR4fo5qVQ

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

Author: os-zhuang

.changeset/audit-select-option-label-localization.md

@@ -0,0 +1,47 @@
+---
+"@objectstack/plugin-audit": patch
+---
+
+fix(plugin-audit): localize select option labels in the tracked-change activity summary (#7289)
+
+`sys_activity.summary` is composed at **write time** and shipped verbatim to
+every consumer at once — the record discussion feed, console home activity, the
+header inbox, the Setup `sys_activity` list, and mobile/REST/SDUI.
+`displayFieldValue` rendered a select/picklist value by scanning `field.options[]`
+and returning the matching option's **authored** `label`. `field.options` comes
+from `engine.getSchema(name)`, which is locale-independent metadata, while the
+shipped bundles carry those same labels under
+`objects.<object>.fields.<field>.options.<value>` (`sys_audit_log.fields.action.options.create = "创建"`).
+Nothing on this path read them.
+
+After #7230 localized the field label, that left a zh-CN workspace with
+
+```
+阶段: Proposal → Closed Won
+```
+
+— a half-localized string at the bottom of a fully-localized page. The tracked-change
+branch now resolves the option label through the same locale-bound translator its
+field label already uses, on the bundles' own key shape, with the authored label as
+the fallback. A bundle miss returns `undefined`, so the authored label and then
+`String(value)` answer exactly as before: the change can only replace an authored
+label with that label's translation, never the reverse.
+
+**The fired-milestone branch is deliberately left alone**, and the opt-out is by
+construction rather than by omission — `renderMilestoneSummary` passes no option
+resolver, so a select token there still renders its authored label byte-for-byte.
+A milestone summary is an author-written sentence with no bundle key of its own,
+and #7290 ruled leaving templates untranslated a contract decision. #7290's own
+change (a reference id → the referenced record's title) is locale-*independent*
+data — the same string in every locale — which is why it could be added to an
+untranslated sentence; an option label is locale-*dependent* rendering, so reading
+the bundle there would guarantee a split sentence (`Deal moved to 已赢单`) in
+exactly the case the bundle exists for. The tracked-change branch has the opposite
+geometry: its frame is fully localized, so there the authored value is the mismatch.
+
+**Read cost is unchanged.** This is a bundle lookup, not I/O: zero added reads on
+every write shape, so the #6656 / PR #6977 retirement (2 → 1 reads per single-id
+write, 3 → 0 per predicate write) that #7291 and #7333 preserved still stands,
+and `displayFieldValue` stays synchronous.
+
+Historical rows keep their write-time composition; only new writes improve.