fix(street-level): SINCE note on the value's line: ANY DATE (by upload date)

The slim-down in #974 dropped --sl-text-small, which .sl-since-note still
used, so with KartaView lit "KartaView: by upload date" rendered on its
own line larger than the value. The note now sits beside the value in the
same mono type and letter spacing, a size smaller (0.5rem), as
"(by upload date)". One source is lit at a time, so the provider name is
dropped. es/ru catalogs, tests, README, CURRENT-STATE and the registry
JSDoc follow.

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

src/layers/streetLevel/uiState.js

@@ -73,16 +73,14 @@ export function filterControls(providers) {
 }
 
 /**
- * The note under SINCE when a lit provider dates its imagery by upload,
- * e.g. "KartaView: by upload date", or null.
+ * The note beside the SINCE value when a lit provider dates its imagery by
+ * upload, "(by upload date)", or null. One source is lit at a time, so the
+ * note needs no provider name.
  * @param {Array<ProviderSnapshot>} providers
  */
 export function sinceNote(providers) {
-  const names = providers
-    .filter((p) => p.on && p.sinceBasis === 'upload')
-    .map((p) => p.name);
-  return names.length
-    ? t('{names}: by upload date', { names: names.join(', ') })
+  return providers.some((p) => p.on && p.sinceBasis === 'upload')
+    ? t('(by upload date)')
     : null;
 }