refactor: remove the deprecated auth options

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/auth/src/http/index.ts

@@ -9,11 +9,7 @@ import {
   getAuthUser,
 } from "../middleware.ts";
 import { resolveAuthSchemas, type AuthSchemaOverrides, type AuthSchemaSet } from "../validation.ts";
-import type {
-  AuthSessionVerificationHandler,
-  AuthSignedInHandler,
-  AuthSignedOutHandler,
-} from "../types.ts";
+import type { AuthSessionVerificationHandler } from "../types.ts";
 
 function text(value: unknown): string {
   return typeof value === "string" ? value : value == null ? "" : String(value);
@@ -53,18 +49,14 @@ export interface AuthHttpOptions {
   baseUrl?: string;
   schemas?: AuthSchemaOverrides | AuthSchemaSet;
   passkey?: AuthPasskeyHttpOptions;
-  /** @deprecated Prefer createAuthEngine({ onSignedIn }). */
-  onSignedIn?: AuthSignedInHandler;
-  /** @deprecated Prefer createAuthEngine({ onSignedOut }). */
-  onSignedOut?: AuthSignedOutHandler;
   onSessionVerification?: AuthSessionVerificationHandler;
 }
 
 export function createAuthHttpHandlers(options: AuthHttpOptions) {
   const engine = options.engine;
   const schemas = resolveAuthSchemas(options.schemas);
-  const onSignedIn = options.onSignedIn ?? engine.onSignedIn;
-  const onSignedOut = options.onSignedOut ?? engine.onSignedOut;
+  const onSignedIn = engine.onSignedIn;
+  const onSignedOut = engine.onSignedOut;
   const onSuccessfulSignUp = engine.onSuccessfulSignUp;
 
   function signupRedirect(ctx: Context, value: string | undefined, fallback: string): Response {