feat(shopping): alışveriş listeleri, stok eşiği önerileri ve akıllı mağaza önerisi motoru

- shoppingLists koleksiyonu (ürün tipi / marka / serbest metin kalemleri), migration 015
- planShopping saf fonksiyonu: paket yuvarlama, zahmet ve hacimli cezası, teslimat, yemek kartı önceliği, ek mağaza eşiği
- eşik önerileri onay/red (red stok yenilenene kadar), ürün tipine hacimli işareti
- fiyat servisinde ortak loadTypeOffers; seed listeleri ve testler

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/seed/shopping.ts

@@ -2,6 +2,7 @@ import { Types } from "mongoose";
 import { ProductModel } from "@/models/product";
 import { ProductPriceModel } from "@/models/product-price";
 import { ProductTypeModel } from "@/models/product-type";
+import { ShoppingListModel } from "@/models/shopping-list";
 import { StoreModel } from "@/models/store";
 import type { MealCardProvider } from "@/shared/accounts";
 import { autoConvertible } from "@/shared/products";
@@ -492,3 +493,88 @@ export async function seedProductPrices(
   if (docs.length) await ProductPriceModel.collection.insertMany(docs);
   return docs.length;
 }
+
+type SeedListItem =
+  | { type: string; qty?: number }
+  | { product: string; qty?: number }
+  | { text: string; qty?: number; unit?: string; note?: string };
+
+/**
+ * Örnek alışveriş listeleri (Faz 13). Eşiğin altındaki ürünler (mercimek, tablet deterjan, diş
+ * macunu) listelere eklenmez; liste sayfasında öneri olarak görünür. Domatesin fiyatı yok:
+ * akıllı öneride "fiyatı bilinmeyen" örneği.
+ */
+const SHOPPING_LISTS: { ref: string; name: string; note?: string; items: SeedListItem[] }[] = [
+  {
+    ref: "haftalik",
+    name: "Haftalık market",
+    items: [
+      { type: "sut", qty: 4 * K },
+      { type: "yumurta", qty: 30 * K },
+      { type: "pirinc", qty: 2_500 },
+      { type: "beyaz-peynir", qty: 500 },
+      { type: "domates", qty: 2 * K },
+      { type: "toz-deterjan", qty: 40 * K },
+      { type: "tuvalet-kagidi", qty: 32 * K },
+      { product: "yumos-1440", qty: 1 * K },
+      { text: "Doğum günü mumu", qty: 1 * K, unit: "paket", note: "Rakam mum: 7" },
+    ],
+  },
+  {
+    ref: "ay-sonu",
+    name: "Ay sonu toptan",
+    note: "Metro'ya arabayla.",
+    items: [{ type: "camasir-suyu", qty: 4 * K }],
+  },
+];
+
+export async function seedShoppingLists(
+  householdIds: Map<string, Types.ObjectId>,
+  users: Map<string, string>,
+): Promise<number> {
+  const actor = new Types.ObjectId(users.get("ayse")!);
+  const householdId = householdIds.get("Çakır Ailesi")!;
+  const [types, products] = await Promise.all([
+    ProductTypeModel.find({ householdId, seedRef: { $type: "string" } })
+      .select({ seedRef: 1 })
+      .lean<{ _id: Types.ObjectId; seedRef: string }[]>(),
+    ProductModel.find({ householdId, seedRef: { $type: "string" } })
+      .select({ seedRef: 1 })
+      .lean<{ _id: Types.ObjectId; seedRef: string }[]>(),
+  ]);
+  const typeByRef = new Map(types.map((x) => [x.seedRef, x._id]));
+  const productByRef = new Map(products.map((x) => [x.seedRef, x._id]));
+  let created = 0;
+  for (const l of SHOPPING_LISTS) {
+    if (await ShoppingListModel.exists({ householdId, seedRef: l.ref })) continue;
+    const items = l.items.flatMap((i): Record<string, unknown>[] => {
+      const common = {
+        _id: new Types.ObjectId(),
+        quantity: i.qty ?? null,
+        source: "manual",
+        addedBy: actor,
+        addedAt: new Date(),
+      };
+      if ("type" in i) {
+        const id = typeByRef.get(i.type);
+        return id ? [{ ...common, kind: "type", productTypeId: id }] : [];
+      }
+      if ("product" in i) {
+        const id = productByRef.get(i.product);
+        return id ? [{ ...common, kind: "product", productId: id }] : [];
+      }
+      return [{ ...common, kind: "text", text: i.text, unit: i.unit ?? "", note: i.note ?? "" }];
+    });
+    await ShoppingListModel.create({
+      householdId,
+      name: l.name,
+      note: l.note ?? "",
+      items,
+      seedRef: l.ref,
+      createdBy: actor,
+      updatedBy: actor,
+    });
+    created++;
+  }
+  return created;
+}