fix: remove unused retry.ts file to resolve knip CI failure

src/api/retry.ts

@@ -1,64 +0,0 @@
-import { Anthropic } from "@anthropic-ai/sdk"
-import { ApiStream, ApiStreamError } from "./transform/stream"
-import delay from "delay"
-
-const RETRIABLE_STATUS_CODES = [408, 429, 500, 502, 503, 504]
-const MAX_RETRIES = 5
-const INITIAL_DELAY_MS = 2000
-
-// `withRetry` is a decorator that adds retry logic to a method that returns an async generator.
-// It will retry the method if it fails with a retriable error.
-// It uses exponential backoff with jitter to delay between retries.
-export function withRetry<T extends (...args: any[]) => ApiStream>(
-	options: {
-		maxRetries?: number
-		baseDelay?: number
-		maxDelay?: number
-	} = {},
-) {
-	const { maxRetries = MAX_RETRIES, baseDelay = INITIAL_DELAY_MS } = options
-
-	return function (
-		_target: T,
-		_context: ClassMethodDecoratorContext<unknown, T>,
-	): (this: unknown, ...args: Parameters<T>) => ApiStream {
-		const originalMethod = _target
-
-		return async function* (this: unknown, ...args: Parameters<T>): ApiStream {
-			let lastError: Error | undefined
-			for (let i = 0; i < maxRetries; i++) {
-				try {
-					yield* originalMethod.apply(this, args)
-					return
-				} catch (error: any) {
-					lastError = error
-					const isRetriable =
-						error instanceof Anthropic.APIError &&
-						error.status &&
-						RETRIABLE_STATUS_CODES.includes(error.status)
-
-					if (!isRetriable) {
-						throw error
-					}
-
-					const exponentialBackoff = Math.pow(2, i)
-					const jitter = Math.random()
-					const delayMs = Math.min(
-						options.maxDelay || Infinity,
-						baseDelay * exponentialBackoff * (1 + jitter),
-					)
-
-					await delay(delayMs)
-				}
-			}
-
-			const error: ApiStreamError = {
-				type: "error",
-				error: "Retries exhausted",
-				message: lastError!.message,
-			}
-
-			yield error
-		}
-	}
-}