fix: rename signIn OAuth to social

packages/better-auth/src/api/index.ts

@@ -15,7 +15,7 @@ import {
 	sendVerificationEmail,
 	changeEmail,
 	signInEmail,
-	signInOAuth,
+	signInSocial,
 	signOut,
 	verifyEmail,
 	linkSocialAccount,
@@ -84,7 +84,7 @@ export function getEndpoints<
 			.flat() || [];
 
 	const baseEndpoints = {
-		signInOAuth,
+		signInSocial,
 		callbackOAuth,
 		getSession: getSession<Option>(),
 		signOut,

packages/better-auth/src/api/routes/sign-in.ts

@@ -6,11 +6,10 @@ import { socialProviderList } from "../../social-providers";
 import { createEmailVerificationToken } from "./email-verification";
 import { generateState, logger } from "../../utils";
 
-export const signInOAuth = createAuthEndpoint(
+export const signInSocial = createAuthEndpoint(
 	"/sign-in/social",
 	{
 		method: "POST",
-		requireHeaders: true,
 		query: z
 			.object({
 				/**