chore: bootstrap monorepo workspace and shared schemas

packages/shared/src/auth.schema.ts

@@ -0,0 +1,17 @@
+import { z } from 'zod';
+
+export const loginSchema = z.object({
+  username: z.string().trim().min(3).max(64),
+  password: z.string().min(8).max(200),
+});
+
+export type LoginInput = z.infer<typeof loginSchema>;
+
+export const authUserSchema = z.object({
+  id: z.string(),
+  username: z.string(),
+  slug: z.string(),
+  displayName: z.string(),
+});
+
+export type AuthUser = z.infer<typeof authUserSchema>;