Add OTP-first customer signup and product catalog PDF field.

Registration collects name and phone, verifies SMS, then asks for a password only for new Meshkee accounts. Product add/edit supports an optional catalog PDF.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/dashboard-core/src/index.ts

@@ -9,6 +9,8 @@ export type {
   OtpSendResponse,
   OtpVerifyResponse,
   RegisterResponse,
+  SignupStartResponse,
+  SignupVerifyResponse,
   HandoffCreateResponse,
   UserProfile,
 } from './types/auth'

packages/dashboard-core/src/types/auth.ts

@@ -63,9 +63,30 @@ export interface RegisterResponse {
   passwordPending?: boolean
   /** True when an existing Meshkee account password was already replaced. */
   passwordUpdated?: boolean
+  /** True when this signup linked an existing Meshkee account. */
+  existingAccount?: boolean
   registeredBusiness?: { id: string; name: string; slug: string }
 }
 
+export interface SignupStartResponse {
+  enabled: boolean
+  requiresOtp: boolean
+  message: string
+  expiresInSeconds?: number
+  /** Present when SMS is disabled — skip OTP and continue with complete. */
+  registrationToken?: string
+  existingAccount?: boolean
+  sites?: string[]
+}
+
+export interface SignupVerifyResponse {
+  verified: boolean
+  existingAccount: boolean
+  sites: string[]
+  registrationToken: string
+  message: string
+}
+
 export interface OtpSendResponse {
   enabled: boolean
   message: string