Fix TypeScript errors and implement furniture import ID integrity with 18+ age verification

- Add termsAccepted and ageVerified columns to User table
- Update register schema with new boolean fields
- Fix register form age verification checkbox (th -> t)
- Fix furni-import spriteId declaration order
- Fix batch route variable naming (id -> spriteId)
- Fix catalog-audit import path and ensure correct types
- Hardened import with per-item id conflict checks
- Added audit option for FurnitureData.json spriteId conflicts
- Updated tagline to include Leeftijdsvereiste: 18+

src/db/schema.ts

@@ -76,6 +76,8 @@ export const User = mysqlTable("users", {
 	homeRoom: int("home_room").notNull().default(0),
 	secretKey: varchar("secret_key", { length: 40 }),
 	pincode: varchar("pincode", { length: 11 }),
+	termsAccepted: boolean("terms_accepted").notNull().default(false),
+	ageVerified: boolean("age_verified").notNull().default(false),
 	extraRank: int("extra_rank"),
 	twoFactorSecret: text("two_factor_secret"),
 	twoFactorRecoveryCodes: text("two_factor_recovery_codes"),