feat(notifications): add notification system and wire order/dispute events

store/auth.ts

@@ -1,17 +1,31 @@
 import { create } from "zustand"
 import type { User, UserRole, VerificationStatus } from "@/lib/types"
 
+interface NotificationPrefs {
+  order: boolean
+  community: boolean
+  system: boolean
+}
+
+const defaultNotificationPrefs: NotificationPrefs = {
+  order: true,
+  community: true,
+  system: false,
+}
+
 interface AuthState {
   isAuthenticated: boolean
   currentRole: UserRole
   verifiedRoles: UserRole[]
   verificationStatus: Partial<Record<UserRole, VerificationStatus>>
   verificationReasons: Partial<Record<UserRole, string>>
+  notificationPrefs: NotificationPrefs
   user: User | null
   switchRole: (role: UserRole) => void
   submitVerification: (role: UserRole) => void
   approveVerification: (role: UserRole) => void
   rejectVerification: (role: UserRole, reason: string) => void
+  setNotificationPref: (type: keyof NotificationPrefs, enabled: boolean) => void
   updateProfile: (patch: { nickname?: string; bio?: string; avatar?: string }) => void
   login: (user: User, verifiedRoles?: UserRole[]) => void
   logout: () => void
@@ -23,6 +37,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
   verifiedRoles: ["consumer"],
   verificationStatus: { consumer: "approved" },
   verificationReasons: {},
+  notificationPrefs: defaultNotificationPrefs,
   user: null,
   switchRole: (role) => {
     const { verifiedRoles } = get()
@@ -84,6 +99,13 @@ export const useAuthStore = create<AuthState>((set, get) => ({
         },
       }
     }),
+  setNotificationPref: (type, enabled) =>
+    set((state) => ({
+      notificationPrefs: {
+        ...state.notificationPrefs,
+        [type]: enabled,
+      },
+    })),
   updateProfile: (patch) =>
     set((state) => {
       if (!state.user) return state
@@ -98,7 +120,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
       }
     }),
   login: (user, verifiedRoles = ["consumer"]) =>
-    set({
+    set((state) => ({
       isAuthenticated: true,
       user,
       currentRole: user.role,
@@ -111,7 +133,8 @@ export const useAuthStore = create<AuthState>((set, get) => ({
         {},
       ),
       verificationReasons: {},
-    }),
+      notificationPrefs: state.notificationPrefs,
+    })),
   logout: () =>
     set({
       isAuthenticated: false,
@@ -119,6 +142,7 @@ export const useAuthStore = create<AuthState>((set, get) => ({
       verifiedRoles: ["consumer"],
       verificationStatus: { consumer: "approved" },
       verificationReasons: {},
+      notificationPrefs: defaultNotificationPrefs,
       user: null,
     }),
 }))