feat(inventory): matlager-hantering – sök, plats-filter, markera flera, massradering

- API: POST /v1/inventory/bulk-delete (mjuk radering, ägar-kontroll, correction-tx)
- Mobil: "Ditt kök" görs om till hanteringsvy – sök, filter Kyl/Frys/Skafferi,
  sortering på plats+namn, markera flera (som mejlklient), Ta bort valda / Töm listan
- Hem: "+N till" blir klickbar och tar dig till Ditt kök

apps/api/src/routes/inventory.ts

@@ -1,5 +1,5 @@
 import type { FastifyInstance } from "fastify";
-import { and, desc, eq, gt, ilike, isNull, or, sql } from "drizzle-orm";
+import { and, desc, eq, gt, ilike, inArray, isNull, or, sql } from "drizzle-orm";
 import { schema } from "@app/database";
 import {
   createInventoryItemInputSchema,
@@ -603,6 +603,58 @@ export async function inventoryRoutes(app: FastifyInstance) {
       .where(eq(schema.inventoryItems.id, id));
     return { ok: true };
   });
+
+  // Massradering: markera flera eller töm en hel vy. Mjuk radering som ovan.
+  app.post("/v1/inventory/bulk-delete", auth, async (req) => {
+    const body = req.body as { ids?: unknown };
+    const ids = Array.isArray(body?.ids)
+      ? body.ids.filter((x): x is string => typeof x === "string").slice(0, 1000)
+      : [];
+    if (ids.length === 0) throw errors.badRequest("ids saknas.");
+    const householdId = await requireActiveHousehold(app.db, req.userId);
+    const owned = await app.db
+      .select({
+        id: schema.inventoryItems.id,
+        quantity: schema.inventoryItems.quantity,
+        unit: schema.inventoryItems.unit,
+      })
+      .from(schema.inventoryItems)
+      .where(
+        and(
+          inArray(schema.inventoryItems.id, ids),
+          eq(schema.inventoryItems.householdId, householdId),
+          isNull(schema.inventoryItems.depletedAt),
+        ),
+      );
+    if (owned.length === 0) return { ok: true, deleted: 0 };
+    const corrections = owned
+      .filter((i) => i.quantity > 0)
+      .map((i) => ({
+        householdId,
+        inventoryItemId: i.id,
+        type: "correction" as const,
+        quantityDelta: -i.quantity,
+        unit: i.unit,
+        actorUserId: req.userId,
+        note: "Massradering av användare",
+      }));
+    if (corrections.length > 0) {
+      await app.db.insert(schema.inventoryTransactions).values(corrections);
+    }
+    await app.db
+      .update(schema.inventoryItems)
+      .set({ quantity: 0, depletedAt: new Date(), updatedAt: new Date() })
+      .where(
+        and(
+          inArray(
+            schema.inventoryItems.id,
+            owned.map((i) => i.id),
+          ),
+          eq(schema.inventoryItems.householdId, householdId),
+        ),
+      );
+    return { ok: true, deleted: owned.length };
+  });
 }
 
 async function getOwnedItem(app: FastifyInstance, itemId: string, userId: string) {