docs(spec): state the one resolution order for a navigation entry's label

.changeset/nav-item-label-resolution-order.md

@@ -0,0 +1,18 @@
+---
+'@objectstack/spec': patch
+---
+
+docs(spec): a navigation entry's `label` describe states the one order the label resolves in
+
+Clause-②: no
+
+The `label` of a navigation entry (`BaseNavItemSchema`) said a present label "renders
+verbatim and is never overwritten", which, read literally, forbids the id-keyed localization
+`translateApp` already performs at the `/meta` boundary. Its describe and JSDoc now state one
+order: the bundle entry `apps.<app>.navigation.<id>.label` for the active locale chain, keyed
+by the entry's `id` and applied by `translateApp` over the app's `navigation` tree (not
+`areas`); else a present label as authored — its inline locale map's value for that locale,
+else its text; else, when absent, the current label of what the entry opens, at render time,
+localized by the target's own translation. A present label is never replaced by its target's
+label and never translated by matching its text. No accepted shape changes: `label` stays an
+optional `I18nLabel`.