fix(hud): lead with the state tag, keep feedState in get_hud_caption

Review fixes for the HUD summary language change:

- The translated feed-state tag now leads the one-line summary and the
  fallback line, so the readout's ellipsis cannot hide it.
- get_hud_caption checks the reply's feedState, returns it and appends the
  state tag; a reply naming another state keeps only the place.
- The model gets the layer names the user sees (localizeLayerName).
- Japanese and Chinese summaries are capped at 20 characters; pt, zh-CN and
  zh-Hant get explicit language names.
- A partial view is narrated as incomplete coverage, not as not live.
- provenanceTag and hudSummaryMatchesProvenance move to layerSnapshot.js so
  the tools package can use them without browser globals.
- docs/CURRENT-STATE.md, changelog and comments updated; redundant tests
  trimmed.

src/tools/queries/brief.js

@@ -1,7 +1,11 @@
 /** Composite queries that combine other tools' answers for one area. */
 
 import { suggestView } from '../views.js';
-import { feedProvenanceEnvelope } from '../../data/layerSnapshot.js';
+import {
+  feedProvenanceEnvelope,
+  hudSummaryMatchesProvenance,
+  provenanceTag,
+} from '../../data/layerSnapshot.js';
 import { defineTool, ToolError } from '../catalog.js';
 import {
   AREA_SCHEMA,
@@ -232,6 +236,7 @@ export const getHudCaption = defineTool({
         feedState: sectionFeedState(brief[key]),
       }),
     );
+    const feedProvenance = feedProvenanceEnvelope(layers);
     const response = await context.services.summary.summarize(
       {
         placeLabels: [area.label],
@@ -244,16 +249,29 @@ export const getHudCaption = defineTool({
           name,
           feedState,
         })),
-        feedProvenance: feedProvenanceEnvelope(layers),
+        feedProvenance,
       },
       { signal: context.signal },
     );
-    const caption = response?.data?.summary;
-    if (!response?.ok || typeof caption !== 'string' || !caption)
+    const words = response?.data?.summary;
+    if (!response?.ok || typeof words !== 'string' || !words)
       throw new ToolError('unavailable', 'The caption service did not answer');
+    // As on the HUD: the warning is the app's own state tag, and a reply that
+    // names another state than the app's keeps only the place.
+    const tag = provenanceTag(feedProvenance);
+    const text = hudSummaryMatchesProvenance(response.data, feedProvenance)
+      ? words
+      : area.label;
+    const caption = tag
+      ? `${text} | ${[tag.state, ...tag.names].join(' ').toUpperCase()}`
+      : text;
     return {
       summary: caption,
-      data: { area: area.label, caption },
+      data: {
+        area: area.label,
+        caption,
+        feedState: feedProvenance.overall,
+      },
     };
   },
 });