ux: improve API error handling and visibility (RooCodeInc#10204)

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>
Co-authored-by: Daniel <57051444+daniel-lxs@users.noreply.github.com>

Author: 3 people

src/api/providers/gemini.ts

@@ -25,6 +25,7 @@ import { convertAnthropicMessageToGemini } from "../transform/gemini-format"
 import { t } from "i18next"
 import type { ApiStream, GroundingSource } from "../transform/stream"
 import { getModelParams } from "../transform/model-params"
+import { handleProviderError } from "./utils/error-handler"
 
 import type { SingleCompletionHandler, ApiHandlerCreateMessageMetadata } from "../index"
 import { BaseProvider } from "./base-provider"