feat: require owner login and add onboarding

src/features/auth/auth-client.ts

@@ -0,0 +1,34 @@
+export type SafeOwner = {
+  id: number
+  email: string
+  name: string
+  onboardingCompletedAt: number | null
+}
+
+export type AuthState = { needsSetup: boolean; owner: SafeOwner | null }
+
+type AuthInput =
+  | { action: 'login'; email: string; password: string }
+  | {
+      action: 'setup'
+      email: string
+      password: string
+      name: string
+      setupToken: string
+    }
+  | { action: 'logout' }
+  | { action: 'onboard'; name: string }
+
+export async function authRequest(input: AuthInput): Promise<AuthState> {
+  const response = await fetch('/api/auth', {
+    method: 'POST',
+    credentials: 'same-origin',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(input),
+  })
+  const result = await response.json()
+  if (!response.ok) {
+    throw new Error(result.error || 'Something went wrong. Please try again.')
+  }
+  return result
+}