v0.23.0 — Pantry: structured USED pull logs + move to /api/v1 service layer

Pantry now runs on the v1 API like Inventory/Animals: service layer in
src/lib/services/pantry.ts, pure logic + tests in src/lib/pantry/core.ts,
thin routes at /api/v1/pantry/* riding the items:* scopes. Pulls write
ItemLog type USED with a structured amount (queryable consumption).
Bulk-use runs its reads inside the transaction, accumulates repeated
pulls, and reports skipped items instead of silently dropping them —
the Pull dialog now surfaces those by name. Old /api/pantry routes
deleted.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

prisma/migrations/20260706042808_v0_22_pantry_used_log/migration.sql

@@ -0,0 +1,5 @@
+-- AlterEnum
+ALTER TYPE "ItemLogType" ADD VALUE 'USED';
+
+-- AlterTable
+ALTER TABLE "ItemLog" ADD COLUMN     "amount" DECIMAL(10,2);