Merge branch 'main' into fix/overpass-failure-phrases-in-data

# Conflicts:
#	CHANGELOG.md

CHANGELOG.md

@@ -5,6 +5,22 @@
   Out Escape Rooms") is returned as data instead of being refused and putting
   the endpoint on cooldown; upstream failures are read from the remark.
 
+- Local FM seek finds stations after wrapping around 87.5–108 MHz, covers both
+  band edges, skips the starting station and rejects spectra from an earlier
+  tune (Aditya, @Rohilalala, #1174).
+- Local RTL-SDR keeps USB reads queued in order and bounds pending decoder
+  work. A stalled or overloaded decoder stops with an explicit error; stopping
+  terminates its worker and rejects late audio. FM playback buffers short
+  scheduling gaps, caps its audio queue at 256 ms, and reduces display updates
+  and spectrum calculations while listening.
+
+- Add Bogotá (Tembici, 250 stations) and Santiago de Chile (Bike Itaú, 200
+  stations) to the GBFS bikeshare registry, the layer's first stations in
+  Colombia and Chile. Both are PBSC feeds like the Brazilian Bike Itaú cities,
+  so no proxy change is needed. Both feeds also list depot stations on other
+  continents (São Paulo, Madrid) as in service; stations outside a city's load
+  radius are now dropped instead of drawn as live docks.
+
 - Add Barcelona's bike share to the GBFS registry: Bicing (543 stations, the
   city's PBSC system) and AMBici (237 e-bike stations across the metropolitan
   area, run by nextbike). Both are keyless GBFS 2.3 feeds listed in
@@ -159,6 +175,18 @@
   the five borough cores load and `CCTV_NYC_MAX_SOURCES` changes the cap. The catalog-wide ceiling is
   unchanged; extra cameras share it round-robin with the other packs.
 
+- Spanish interface (`es`), translated by @meirm (#602) and reviewed against the
+  current English.
+
+- Interface localization, starting with Russian. UI text is marked with
+  `t()`, `tn()` (plurals) and `msg()` in code and `data-i18n*` in markup, keyed
+  by the English text itself; each language is one flat JSON catalog
+  (`src/i18n/locales/ru.json`). The language comes from `?lang=`, the language
+  picker (the globe button in the bottom-right corner), then the browser
+  language; English stays the default and the fallback. `npm run i18n`, also
+  run by `npm test`, fails on missing, unused or broken translations. Built on
+  the i18n foundation by @meirm (#601), with the Russian catalog started
+  from #312. It also fails on UI text that is not marked at all.
 - Street Level counts unique tiles before ranking so overlapping dateline halves
   in polar views do not waste slots in the 16-tile overview budget.