i18n: fix the LGTM review findings and tidy the branch texts

- i18n scanner: lastError sink, no false sinks on defaults and ternaries
- shared src/i18n/marker.js for modules that only mark strings
- wind field messages move to wind/fields.js; CITY_POIS imports from cityPois.js
- drop review IDs, change history and stale references from comments and docs

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layers/transit/ingestion.js

@@ -476,8 +476,7 @@ export function createIngestion({ state, services, parts, source }) {
           `[Data:Transit] ${feed.id} poll failed:`,
           error?.message || error,
         );
-        // English data; the panel shows it through FEED_ERROR_PATTERNS
-        // i18n-ignore: translated on display (ui/statusText.js)
+        // i18n-ignore: English data, translated on display (ui/statusText.js)
         status.error = `${feed.name} feed unavailable`;
         status.retryInSec = Number.isFinite(error?.retryInSec)
           ? error.retryInSec

src/layers/transit/policy.js

@@ -321,10 +321,8 @@ export function aggregateTransitFeedHealth(statuses, nowMs) {
   };
 }
 
-// AI tools (src/tools/queries/mobility.js) import this module, so it stays
-// free of i18n: the card copy below calls the translate function `t` that the
-// caller hands in. The browser selection passes the real one from src/i18n;
-// without it the copy is English.
+// AI tools (src/tools/queries/mobility.js) import this module, so no i18n here:
+// the card copy takes `t` from the caller (selection.js); without it, English.
 const msg = (text) => text;
 
 /** English {placeholder} interpolation, the default `t` of the card copy. */

src/layers/transit/queries.js

@@ -278,10 +278,8 @@ export function createQueries({ state, parts }) {
           : {}),
         degraded: count > 0 && health.degraded,
         loading: health.loading && count === 0,
-        // English data; the panel shows it through STATUS_PIECE_PATTERNS
-        // (ui/statusText.js).
         loadingLabel:
-          // i18n-ignore: translated on display
+          // i18n-ignore: English data, translated on display (ui/statusText.js)
           health.loading && count === 0
             ? `Loading ${active.map((feed) => feed.name).join(', ')}`
             : undefined,

src/layers/transit/selectionCopy.i18n.test.mjs

@@ -1,4 +1,4 @@
-// K-37: the Transit selection card follows the UI language. The copy builder
+// The Transit selection card follows the UI language. The copy builder
 // stays free of i18n (AI tools import policy.js); the browser hands it t().
 import test from 'node:test';
 import assert from 'node:assert/strict';