Add better-auth package in solid frontend

Author: AmanVarshney01

.changeset/blue-carpets-mate.md

@@ -0,0 +1,5 @@
+---
+"create-better-t-stack": patch
+---
+
+Add better-auth package in solid frontend

apps/cli/src/helpers/setup/auth-setup.ts

@@ -35,6 +35,7 @@ export async function setupAuth(config: ProjectConfig): Promise<void> {
 				"next",
 				"nuxt",
 				"svelte",
+				"solid",
 			].includes(f),
 		);