fix(ui): cap khanegi bottom nav at 4 slots with drag reorder

Merge all versions onto the shared nav sample so extra items cannot stay enabled.

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

src/config/defaultKhanegiUiConfig.ts

@@ -91,6 +91,7 @@ export function createDefaultKhanegiUiConfig() {
           { id: 'user', label: 'تنظیمات', icon: 'vuesax-linear:setting-2', route: 'user', order: 8, visible: true },
         ],
         bottom: [
+          // ۴ جایگاه ثابت نوار پایین — با get-user/khanegi-nav-sample.ts یکی بماند
           { id: 'gold', label: 'خرید و فروش', icon: 'vuesax-linear:coin', route: 'gold', order: 1, visible: true },
           { id: 'transactions', label: 'تراکنش‌ها', icon: 'vuesax-linear:receipt-item', route: 'transactions', order: 2, visible: true },
           { id: 'wallet', label: 'کیف پول', icon: 'vuesax-linear:wallet-add', route: 'wallet', order: 3, visible: true },
@@ -118,6 +119,88 @@ export function createDefaultKhanegiUiConfig() {
 
 export type UiConfigBase = ReturnType<typeof createDefaultKhanegiUiConfig>
 
+/** نوار پایین موبایل فقط ۴ جایگاه دارد (خانه جدا در FAB وسط است) */
+export const MAX_BOTTOM_NAV_SLOTS = 4
+
+export type KhanegiNavItem = UiConfigBase['app']['navigation']['sidebar'][number]
+
+function cloneJson<T>(value: T): T {
+  return JSON.parse(JSON.stringify(value)) as T
+}
+
+export function getKhanegiNavSample() {
+  const { navigation } = createDefaultKhanegiUiConfig().app
+  return {
+    sidebar: cloneJson(navigation.sidebar),
+    bottom: cloneJson(navigation.bottom),
+    sidebarReferral: cloneJson(navigation.sidebarReferral),
+  }
+}
+
+/** آیتم‌های سمپل را نگه می‌دارد؛ لیبل/وضعیت نسخه‌ها روی همان id overlay می‌شود */
+export function mergeNavItemsFromSample(
+  sample: KhanegiNavItem[],
+  stored: KhanegiNavItem[] | undefined,
+  maxVisible?: number,
+): KhanegiNavItem[] {
+  const sampleById = new Map(sample.map((item) => [item.id, item]))
+  const storedList = Array.isArray(stored) ? stored : []
+  const kept: KhanegiNavItem[] = []
+  const seen = new Set<string>()
+
+  for (const prev of storedList) {
+    const base = sampleById.get(prev.id)
+    if (!base || seen.has(prev.id)) continue
+    seen.add(prev.id)
+    kept.push({
+      ...base,
+      label: prev.label || base.label,
+      icon: prev.icon || base.icon,
+      visible: typeof prev.visible === 'boolean' ? prev.visible : base.visible,
+      query: prev.query ?? base.query,
+    })
+  }
+
+  for (const item of sample) {
+    if (seen.has(item.id)) continue
+    kept.push({ ...item })
+  }
+
+  if (typeof maxVisible === 'number') {
+    let visibleCount = 0
+    for (const item of kept) {
+      if (!item.visible) continue
+      visibleCount += 1
+      if (visibleCount > maxVisible) item.visible = false
+    }
+  }
+
+  return kept.map((item, index) => ({ ...item, order: index + 1 }))
+}
+
+export function applyKhanegiNavSample(app: { navigation?: any } | null | undefined) {
+  if (!app || typeof app !== 'object') return
+  const sample = getKhanegiNavSample()
+  if (!app.navigation || typeof app.navigation !== 'object') {
+    app.navigation = {
+      type: 'both',
+      sidebar: sample.sidebar,
+      bottom: sample.bottom,
+      sidebarReferral: sample.sidebarReferral,
+    }
+    return
+  }
+  app.navigation.sidebar = mergeNavItemsFromSample(sample.sidebar, app.navigation.sidebar)
+  app.navigation.bottom = mergeNavItemsFromSample(
+    sample.bottom.slice(0, MAX_BOTTOM_NAV_SLOTS),
+    app.navigation.bottom,
+    MAX_BOTTOM_NAV_SLOTS,
+  ).slice(0, MAX_BOTTOM_NAV_SLOTS)
+  if (!app.navigation.sidebarReferral || typeof app.navigation.sidebarReferral !== 'object') {
+    app.navigation.sidebarReferral = sample.sidebarReferral
+  }
+}
+
 export type UiConfig = UiConfigBase & {
   /** Immutable factory look — set once; never overwrite on normal save */
   defaultSnapshot?: {
@@ -173,6 +256,9 @@ export function normalizeKhanegiUiConfigForClient<T extends Record<string, any>>
       if (app.navigation.sidebarReferral?.route === 'products') {
         app.navigation.sidebarReferral.route = 'buyProduct'
       }
+      applyKhanegiNavSample(app)
+    } else {
+      applyKhanegiNavSample(app)
     }
   }