Share customer session cookies with the storefront and polish business settings.

Keep JWT login mirrored on the tenant cookie domain, improve e-payment settings UX, and add a storefront link from the customer sidebar.

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

apps/business/src/services/settingsService.ts

@@ -31,9 +31,8 @@ export interface MellatGatewaySettings {
   enabled: boolean
   terminalId: string
   username: string
-  /** Always empty in API responses; use passwordSet. */
+  /** Always empty in API responses; send a new value to replace the stored secret. */
   password: string
-  passwordSet?: boolean
 }
 
 export interface ZarinpalGatewaySettings {
@@ -73,7 +72,6 @@ export const DEFAULT_EPAYMENT_SETTINGS: EPaymentSettings = {
       terminalId: '',
       username: '',
       password: '',
-      passwordSet: false,
     },
     sep: { enabled: false },
     snappay: { enabled: false },