diff --git a/src/assets/mock/README.md b/src/assets/mock/README.md
new file mode 100644
index 0000000..8e743b1
--- /dev/null
+++ b/src/assets/mock/README.md
@@ -0,0 +1,8 @@
+# Mock Data Boundaries
+
+- `bootstrap/`: tenant and platform configuration only.
+- `website/`: website business/content mocks.
+- `builder/`: builder configuration editing mocks.
+- `backoffice/`: business domain data (products, categories, orders, customers).
+
+Backoffice business data must not be stored under `bootstrap/`.
diff --git a/src/assets/mock/backoffice/categories/list.json b/src/assets/mock/backoffice/categories/list.json
new file mode 100644
index 0000000..eac9d5f
--- /dev/null
+++ b/src/assets/mock/backoffice/categories/list.json
@@ -0,0 +1,16 @@
+[
+  {
+    "id": "cat-001",
+    "title": "Electronics",
+    "description": "Phones, laptops and accessories",
+    "imageUrl": "https://images.unsplash.com/photo-1498049794561-7780e7231661?w=400&h=300&fit=crop",
+    "itemsCount": 120
+  },
+  {
+    "id": "cat-002",
+    "title": "Clothing",
+    "description": "Fashion for everyone",
+    "imageUrl": "https://images.unsplash.com/photo-1441986300917-64674bd600d8?w=400&h=300&fit=crop",
+    "itemsCount": 80
+  }
+]
diff --git a/src/assets/mock/backoffice/customers/list.json b/src/assets/mock/backoffice/customers/list.json
new file mode 100644
index 0000000..fe51488
--- /dev/null
+++ b/src/assets/mock/backoffice/customers/list.json
@@ -0,0 +1 @@
+[]
diff --git a/src/assets/mock/backoffice/orders/list.json b/src/assets/mock/backoffice/orders/list.json
new file mode 100644
index 0000000..fe51488
--- /dev/null
+++ b/src/assets/mock/backoffice/orders/list.json
@@ -0,0 +1 @@
+[]
diff --git a/src/assets/mock/backoffice/products/list.json b/src/assets/mock/backoffice/products/list.json
new file mode 100644
index 0000000..125f16d
--- /dev/null
+++ b/src/assets/mock/backoffice/products/list.json
@@ -0,0 +1,34 @@
+[
+  {
+    "id": "prod-001",
+    "sku": "SKU-001",
+    "title": "Demo Product 1",
+    "subtitle": "Platform product mock",
+    "imageUrl": "https://images.unsplash.com/photo-1511707171634-5f897ff02aa9?w=600&h=400&fit=crop",
+    "badges": ["new"],
+    "tags": ["featured"],
+    "rating": 4.8,
+    "reviewsCount": 15,
+    "price": {
+      "amount": 149990,
+      "currency": "RUB",
+      "originalAmount": 169990
+    },
+    "stockStatus": "in_stock"
+  },
+  {
+    "id": "prod-002",
+    "sku": "SKU-002",
+    "title": "Demo Product 2",
+    "imageUrl": "https://images.unsplash.com/photo-1496181133206-80ce9b88a853?w=600&h=400&fit=crop",
+    "badges": ["sale"],
+    "tags": ["bestseller"],
+    "rating": 4.6,
+    "reviewsCount": 8,
+    "price": {
+      "amount": 89990,
+      "currency": "RUB"
+    },
+    "stockStatus": "low_stock"
+  }
+]