feat(shared): add @solelog/shared contracts package and wire packages/* workspace

packages/shared/src/index.ts

@@ -0,0 +1,18 @@
+import { z } from 'zod';
+
+export const HealthResponse = z.object({
+  status: z.literal('ok'),
+});
+export type HealthResponse = z.infer<typeof HealthResponse>;
+
+export const PublicUser = z.object({
+  id: z.string(),
+  email: z.string().email(),
+  name: z.string(),
+});
+export type PublicUser = z.infer<typeof PublicUser>;
+
+export const MeResponse = z.object({
+  user: PublicUser,
+});
+export type MeResponse = z.infer<typeof MeResponse>;