chore(db): remove Prisma facade and drop prisma:generate from CI

Co-authored-by: Cursor <[email protected]>

src/lib/staff-smoke-contract.test.ts

@@ -120,7 +120,7 @@ describe("staff smoke contract", () => {
 		expect(src).toContain("CameraWeb");
 		expect(src).toContain("tryRemoveLocalPhotoFile");
 		expect(src).toContain("@/lib/admin/photo-files");
-		expect(src).not.toContain("@/lib/prisma");
+		expect(src).toContain("@/lib/db");
 	});
 
 	it("guards dual ticket queues on admin and mod", () => {