refactor(core): rename getCurrentValue to fetchCurrentValue

Also use Promise.allSettled in ContextBridge.refresh() to handle
provider errors gracefully.

Co-authored-by: Ona <no-reply@ona.com>

packages/aris-data-source-tfl/src/tfl-api.ts

@@ -1,4 +1,5 @@
 import { type } from "arktype"
+
 import type { StationLocation, TflAlertSeverity } from "./types.ts"
 
 const TFL_API_BASE = "https://api.tfl.gov.uk"