test: Phase 5 verification scripts and opt-in e2e integration spec

Adds scripts to seed scenario data, create Proclamations, snapshot schedules,
drive the Kiosk-facing HTTP endpoints, and an opt-in (P5_INTEGRATION=1)
Vitest spec exercising create/type/copy against a scratch database. The
integration spec is skipped by default so the normal suite needs no DB.

scripts/p5-snapshot.ts

@@ -0,0 +1,21 @@
+import 'dotenv/config';
+import pg from 'pg';
+import { PrismaPg } from '@prisma/adapter-pg';
+import { PrismaClient } from '../src/lib/generated/prisma/client';
+const pool = new pg.Pool({ connectionString: process.env.DATABASE_URL });
+const prisma = new PrismaClient({ adapter: new PrismaPg(pool) });
+const schedules = await prisma.schedule.findMany({ include: { blocks: true } });
+const keys = await prisma.licenseKey.findMany({ select: { key: true, systemName: true } });
+console.log(
+	JSON.stringify({
+		scheduleCount: schedules.length,
+		blockCount: schedules.reduce((n, s) => n + s.blocks.length, 0),
+		types: schedules.map((s) => s.type),
+		names: keys
+			.filter((k) => k.systemName)
+			.map((k) => k.systemName)
+			.sort()
+	})
+);
+await prisma.$disconnect();
+await pool.end();