diff --git a/package.json b/package.json
index 2a96ce2..74b067b 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
     "prisma:inventory-khanegi-sms": "ts-node --transpile-only prisma/inventory-khanegi-sms.ts",
     "prisma:bulk-khanegi-sms-defaults": "ts-node --transpile-only prisma/bulk-khanegi-sms-defaults.ts",
     "prisma:bulk-khanegi-modular-brand": "ts-node --transpile-only prisma/bulk-khanegi-modular-brand.ts",
+    "prisma:repair-khanegi-ui-config": "ts-node --transpile-only prisma/repair-khanegi-ui-config.ts",
     "prisma:copy-sms-between-tenants": "ts-node --transpile-only prisma/copy-sms-between-tenants.ts",
     "prisma:list-tenants": "ts-node --transpile-only prisma/list-tenants.ts"
   },
diff --git a/prisma/lib/appearance-builders.ts b/prisma/lib/appearance-builders.ts
index 2c4b9e3..aac5b8e 100644
--- a/prisma/lib/appearance-builders.ts
+++ b/prisma/lib/appearance-builders.ts
@@ -165,17 +165,18 @@ export function buildKhanegiUiFromColors(input: {
         borderRadius: { sm: 8, md: 12, lg: 16 },
       },
       navigation: {
-        type: 'sidebar+bottom',
+        // userTheme schema: bottom-navigation | sidebar | both
+        type: 'both',
         sidebar: [
           { id: 'home', label: 'داشبورد', icon: 'vuesax-linear:chart', route: 'home', order: 1, visible: true },
-          { id: 'products', label: 'معاملات', icon: 'vuesax-linear:shop', route: 'products', order: 2, visible: true },
+          { id: 'products', label: 'معاملات', icon: 'vuesax-linear:shop', route: 'buyProduct', order: 2, visible: true },
           { id: 'transactions', label: 'تراکنش‌ها', icon: 'vuesax-linear:receipt-item', route: 'transactions', order: 3, visible: true },
           { id: 'wallet', label: 'کیف پول', icon: 'vuesax-linear:wallet-2', route: 'wallet', order: 4, visible: true },
           { id: 'user', label: 'حساب کاربری', icon: 'vuesax-linear:user', route: 'user', order: 5, visible: true },
         ],
         bottom: [
           { id: 'home', label: 'خانه', icon: 'vuesax-linear:home-2', route: 'home', order: 1, visible: true },
-          { id: 'products', label: 'معامله', icon: 'vuesax-linear:shop', route: 'products', order: 2, visible: true },
+          { id: 'products', label: 'معامله', icon: 'vuesax-linear:shop', route: 'buyProduct', order: 2, visible: true },
           { id: 'transactions', label: 'سوابق', icon: 'vuesax-linear:receipt-item', route: 'transactions', order: 3, visible: true },
           { id: 'wallet', label: 'کیف پول', icon: 'vuesax-linear:wallet-2', route: 'wallet', order: 4, visible: true },
           { id: 'user', label: 'پروفایل', icon: 'vuesax-linear:user', route: 'user', order: 5, visible: true },
@@ -189,6 +190,7 @@ export function buildKhanegiUiFromColors(input: {
       },
       header: {
         visible: true,
+        variant: 'default',
         showLogo: true,
         showNotifications: true,
         showProfile: true,
diff --git a/prisma/repair-khanegi-ui-config.ts b/prisma/repair-khanegi-ui-config.ts
new file mode 100644
index 0000000..d610baf
--- /dev/null
+++ b/prisma/repair-khanegi-ui-config.ts
@@ -0,0 +1,205 @@
+/**
+ * Normalize stored Khanegi appUiConfig so userTheme Zod schema accepts it.
+ *
+ * Fixes common backfill issues:
+ *   navigation.type: "sidebar+bottom" → "both"
+ *   header.variant missing → "default"
+ *   route "products" → "buyProduct"
+ *
+ * Dry-run:
+ *   KHANEGI_UI_REPAIR_DRY_RUN=1 npm run prisma:repair-khanegi-ui-config
+ *
+ * Apply:
+ *   npm run prisma:repair-khanegi-ui-config
+ */
+import { Prisma, PrismaClient, ProductType } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+function env(name: string, fallback = '') {
+  return String(process.env[name] ?? fallback).trim();
+}
+
+function bumpAppVersion(current?: string | null): string {
+  const v = String(current || '1').trim() || '1';
+  if (/^\d+$/.test(v)) return String(Number(v) + 1);
+  const semver = v.match(/^(\d+)\.(\d+)\.(\d+)$/);
+  if (semver) return `${semver[1]}.${semver[2]}.${Number(semver[3]) + 1}`;
+  return `${Date.now()}`;
+}
+
+function mapNavType(value: unknown): string | undefined {
+  if (typeof value !== 'string') return undefined;
+  if (value === 'sidebar+bottom' || value === 'both') return 'both';
+  if (value === 'bottom-navigation' || value === 'sidebar') return value;
+  return value;
+}
+
+function mapRoute(value: unknown): unknown {
+  if (value === 'products') return 'buyProduct';
+  return value;
+}
+
+function mapNavItems(items: unknown): unknown {
+  if (!Array.isArray(items)) return items;
+  return items.map((item) => {
+    if (!item || typeof item !== 'object' || Array.isArray(item)) return item;
+    const row = { ...(item as Record<string, unknown>) };
+    if ('route' in row) row.route = mapRoute(row.route);
+    return row;
+  });
+}
+
+function normalizeUiConfig(raw: unknown): {
+  next: Record<string, unknown> | null;
+  changed: boolean;
+  fixes: string[];
+} {
+  if (!raw || typeof raw !== 'object' || Array.isArray(raw)) {
+    return { next: null, changed: false, fixes: [] };
+  }
+
+  const root = JSON.parse(JSON.stringify(raw)) as Record<string, unknown>;
+  const fixes: string[] = [];
+  const app =
+    root.app && typeof root.app === 'object' && !Array.isArray(root.app)
+      ? (root.app as Record<string, unknown>)
+      : null;
+
+  if (!app) {
+    return { next: root, changed: false, fixes };
+  }
+
+  const navigation =
+    app.navigation && typeof app.navigation === 'object' && !Array.isArray(app.navigation)
+      ? (app.navigation as Record<string, unknown>)
+      : null;
+
+  if (navigation) {
+    const mapped = mapNavType(navigation.type);
+    if (mapped && mapped !== navigation.type) {
+      fixes.push(`navigation.type:${String(navigation.type)}→${mapped}`);
+      navigation.type = mapped;
+    }
+    if ('sidebar' in navigation) {
+      const before = JSON.stringify(navigation.sidebar);
+      navigation.sidebar = mapNavItems(navigation.sidebar);
+      if (JSON.stringify(navigation.sidebar) !== before) {
+        fixes.push('navigation.sidebar.routes');
+      }
+    }
+    if ('bottom' in navigation) {
+      const before = JSON.stringify(navigation.bottom);
+      navigation.bottom = mapNavItems(navigation.bottom);
+      if (JSON.stringify(navigation.bottom) !== before) {
+        fixes.push('navigation.bottom.routes');
+      }
+    }
+    const referral =
+      navigation.sidebarReferral &&
+      typeof navigation.sidebarReferral === 'object' &&
+      !Array.isArray(navigation.sidebarReferral)
+        ? (navigation.sidebarReferral as Record<string, unknown>)
+        : null;
+    if (referral && 'route' in referral) {
+      const mappedRoute = mapRoute(referral.route);
+      if (mappedRoute !== referral.route) {
+        fixes.push('navigation.sidebarReferral.route');
+        referral.route = mappedRoute;
+      }
+    }
+  }
+
+  const header =
+    app.header && typeof app.header === 'object' && !Array.isArray(app.header)
+      ? (app.header as Record<string, unknown>)
+      : null;
+  if (header && header.variant !== 'default') {
+    fixes.push('header.variant→default');
+    header.variant = 'default';
+  }
+
+  if (app.startRoute === 'products') {
+    fixes.push('startRoute:products→buyProduct');
+    app.startRoute = 'buyProduct';
+  }
+
+  // Keep factory snapshot consistent if present
+  const snap =
+    root.defaultSnapshot &&
+    typeof root.defaultSnapshot === 'object' &&
+    !Array.isArray(root.defaultSnapshot)
+      ? (root.defaultSnapshot as Record<string, unknown>)
+      : null;
+  if (snap?.app && typeof snap.app === 'object' && !Array.isArray(snap.app)) {
+    const nested = normalizeUiConfig({
+      schemaId: 'ui-config',
+      version: '1.0.0',
+      app: snap.app,
+      pages: snap.pages || {},
+    });
+    if (nested.next?.app) {
+      snap.app = nested.next.app;
+      if (nested.fixes.length) fixes.push(...nested.fixes.map((f) => `snapshot.${f}`));
+    }
+  }
+
+  return { next: root, changed: fixes.length > 0, fixes };
+}
+
+async function main() {
+  const dryRun = env('KHANEGI_UI_REPAIR_DRY_RUN') === '1';
+  const tenants = await prisma.tenant.findMany({
+    where: { product: ProductType.khanegi, isActive: true },
+    select: {
+      id: true,
+      domain: true,
+      nameFa: true,
+      uiVariant: true,
+      appUiConfig: true,
+      appVersion: true,
+    },
+    orderBy: { domain: 'asc' },
+  });
+
+  let updated = 0;
+  for (const t of tenants) {
+    if (!t.appUiConfig) continue;
+    const { next, changed, fixes } = normalizeUiConfig(t.appUiConfig);
+    if (!changed || !next) continue;
+
+    const nextVersion = bumpAppVersion(t.appVersion);
+    console.log(
+      JSON.stringify({
+        domain: t.domain,
+        nameFa: t.nameFa,
+        uiVariant: t.uiVariant,
+        fixes,
+        appVersion: { from: t.appVersion, to: nextVersion },
+        dryRun,
+      }),
+    );
+
+    if (dryRun) continue;
+
+    await prisma.tenant.update({
+      where: { id: t.id },
+      data: {
+        appUiConfig: next as Prisma.InputJsonValue,
+        appVersion: nextVersion,
+      },
+    });
+    updated += 1;
+  }
+
+  console.log(JSON.stringify({ dryRun, updated, scanned: tenants.length, done: true }));
+}
+
+main()
+  .catch((err) => {
+    console.error(err);
+    process.exitCode = 1;
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });
diff --git a/src/get-user/get-user.service.ts b/src/get-user/get-user.service.ts
index 848dabe..51fe587 100644
--- a/src/get-user/get-user.service.ts
+++ b/src/get-user/get-user.service.ts
@@ -83,7 +83,7 @@ export class GetUserService {
       ui_variant: isKhanegi ? uiVariant : undefined,
       app_ui_config:
         isKhanegi && uiVariant === 'newTheme'
-          ? this.stripKhanegiSaMeta(ui)
+          ? this.stripKhanegiSaMeta(this.normalizeKhanegiUiConfig(ui))
           : undefined,
       /** Laravel-compatible overlay; Hamkar merges only when present */
       ui_settings: uiSettings.length ? uiSettings : undefined,
@@ -168,6 +168,49 @@ export class GetUserService {
     return rest;
   }
 
+  /**
+   * Backfillهای قدیمی sidebar+bottom / route=products / بدون header.variant
+   * را با اسکیمای userTheme هم‌تراز می‌کند تا Zod رد نکند و fallback نشود.
+   */
+  private normalizeKhanegiUiConfig(ui: Record<string, any> | null) {
+    if (!ui || typeof ui !== 'object') return ui;
+    const next = JSON.parse(JSON.stringify(ui)) as Record<string, any>;
+    this.normalizeKhanegiAppNode(next.app);
+    this.normalizeKhanegiAppNode(next.defaultSnapshot?.app);
+    return next;
+  }
+
+  private normalizeKhanegiAppNode(app: any) {
+    if (!app || typeof app !== 'object') return;
+
+    if (app.startRoute === 'products') app.startRoute = 'buyProduct';
+
+    const header = app.header;
+    if (header && typeof header === 'object' && header.variant !== 'default') {
+      header.variant = 'default';
+    }
+
+    const navigation = app.navigation;
+    if (!navigation || typeof navigation !== 'object') return;
+
+    if (navigation.type === 'sidebar+bottom') navigation.type = 'both';
+
+    const mapItems = (items: unknown) => {
+      if (!Array.isArray(items)) return items;
+      return items.map((item) => {
+        if (!item || typeof item !== 'object') return item;
+        if (item.route === 'products') return { ...item, route: 'buyProduct' };
+        return item;
+      });
+    };
+
+    navigation.sidebar = mapItems(navigation.sidebar);
+    navigation.bottom = mapItems(navigation.bottom);
+    if (navigation.sidebarReferral?.route === 'products') {
+      navigation.sidebarReferral.route = 'buyProduct';
+    }
+  }
+
   private buildHamkarUiSettings(ui: Record<string, any>): UiSetting[] {
     const settings = ui?.settings;
     if (!settings || typeof settings !== 'object') return [];