fix(provider): type model not found errors (#27334)

packages/opencode/src/effect/promise.ts

@@ -0,0 +1,17 @@
+import { Cause, Effect } from "effect"
+
+export function refineRejection<A, E>(
+  evaluate: (signal: AbortSignal) => PromiseLike<A>,
+  refine: (cause: unknown) => E | undefined,
+) {
+  return Effect.tryPromise(evaluate).pipe(
+    Effect.catch((error) => {
+      const cause = Cause.isUnknownError(error) ? error.cause : error
+      const refined = refine(cause)
+      if (refined !== undefined) return Effect.fail(refined)
+      return Effect.die(cause)
+    }),
+  )
+}
+
+export * as EffectPromise from "./promise"