refactor: replace Prisma ORM runtime with Drizzle ORM facade

- Replace Prisma client runtime with Drizzle ORM (zero Prisma engine/query engine in production)
- Add Prisma-compatible facade (@/lib/prisma-facade.ts) backed by Drizzle for backwards compatibility
- Runtime queries route through Drizzle ORM; @prisma/client is now devDependency (types only)
- Remove @prisma/adapter-mariadb dependency; delete prisma-pool.ts and types/prisma.ts
- New Drizzle schema layer: src/db/schema.ts (176 tables) and src/lib/db.ts (connection)
- Update README documenting the dual-layer ORM architecture
- Restore src/generated/ gitignore (build artifact for local type generation)
- 0 TypeScript errors, 583 tests passing

The facade intentionally uses `any` types to match the Prisma Client API surface,
allowing existing code to run unmodified while routing queries through Drizzle at runtime.

src/app/admin/items/page.tsx

@@ -1,7 +1,9 @@
+import { and, count, desc, eq, like, or } from "drizzle-orm";
 import { Package } from "lucide-react";
 import { getTranslations } from "next-intl/server";
 import { AdminPageShell } from "@/components/admin/admin-page-shell";
 import { fetchAdminList } from "@/lib/admin-list";
+import { db, ItemsBase } from "@/lib/db";
 import { canAccess, PERMS } from "@/lib/permissions";
 import { type ItemsBaseRow, ItemsTable } from "./items-table";
 
@@ -15,32 +17,56 @@ export default async function ItemsBasePage({
 	const result = await fetchAdminList<ItemsBaseRow>(
 		{
 			permission: PERMS.CATALOG_VIEW,
-			model: "itemsBase",
-			searchFields: ["itemName", "publicName"],
-			defaultSort: { id: "desc" },
-			select: {
-				id: true,
-				spriteId: true,
-				publicName: true,
-				itemName: true,
-				type: true,
-				interactionType: true,
-				width: true,
-				length: true,
+			fetch: async ({ search, page, perPage, rawParams }) => {
+				const conditions = [];
+				if (search) {
+					const ors = [
+						like(ItemsBase.itemName, `%${search}%`),
+						like(ItemsBase.publicName, `%${search}%`),
+					];
+					const asId = Number(search);
+					if (Number.isFinite(asId) && asId > 0) {
+						ors.push(eq(ItemsBase.id, asId));
+					}
+					conditions.push(or(...ors));
+				}
+				if (rawParams.filter_type) {
+					conditions.push(eq(ItemsBase.type, rawParams.filter_type));
+				}
+				const where = conditions.length > 0 ? and(...conditions) : undefined;
+				const [rows, totals] = await Promise.all([
+					db
+						.select({
+							id: ItemsBase.id,
+							spriteId: ItemsBase.spriteId,
+							publicName: ItemsBase.publicName,
+							itemName: ItemsBase.itemName,
+							type: ItemsBase.type,
+							interactionType: ItemsBase.interactionType,
+							width: ItemsBase.width,
+							length: ItemsBase.length,
+						})
+						.from(ItemsBase)
+						.where(where)
+						.orderBy(desc(ItemsBase.id))
+						.limit(perPage)
+						.offset((page - 1) * perPage),
+					db.select({ total: count() }).from(ItemsBase).where(where),
+				]);
+				return {
+					rows: rows.map((r) => ({
+						id: r.id,
+						spriteId: r.spriteId,
+						publicName: r.publicName || "",
+						itemName: r.itemName || "",
+						type: r.type || "s",
+						interactionType: r.interactionType || "default",
+						width: r.width,
+						length: r.length,
+					})),
+					total: totals[0]?.total ?? 0,
+				};
 			},
-			filterMap: {
-				filter_type: (v) => ({ type: v }),
-			},
-			mapRow: (r) => ({
-				id: r.id as number,
-				spriteId: r.spriteId as number,
-				publicName: (r.publicName as string) || "",
-				itemName: (r.itemName as string) || "",
-				type: (r.type as string) || "s",
-				interactionType: (r.interactionType as string) || "default",
-				width: r.width as number,
-				length: r.length as number,
-			}),
 		},
 		paramsPromise,
 		searchParams,