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/lib/services/catalog-audit.ts

@@ -16,6 +16,7 @@ import {
 	repairFurniData,
 	repairOrphanedCatalog,
 } from "./catalog-repair";
+import { readFurniData } from "./furni-data";
 import { ensureDirectories } from "./furni-import";
 import {
 	assetNameCandidates,
@@ -118,6 +119,7 @@ export interface AuditSummary {
 	duplicatesMerged: number;
 	duplicateRowsRemoved: number;
 	remappedReferences: number;
+	furniDataIdConflicts: number;
 }
 
 export interface CatalogAuditOptions {
@@ -128,6 +130,7 @@ export interface CatalogAuditOptions {
 	organizeSql?: boolean;
 	repairFurniData?: boolean;
 	repairStructure?: boolean;
+	checkFurniDataIds?: boolean;
 }
 
 export async function runCatalogAudit(
@@ -722,6 +725,60 @@ export async function runCatalogAudit(
 		}
 	}
 
+	// ── FurnitureData.json id conflict check ──────────────
+	let furniDataIdConflicts: {
+		classname: string;
+		itemId: number;
+		conflictingId: number;
+		existingClassname: string;
+	}[] = [];
+	if (options?.checkFurniDataIds) {
+		onEvent?.({
+			type: "progress",
+			message: "Checking FurnitureData.json for spriteId conflicts…",
+		});
+		try {
+			const furniData = (await readFurniData()) as Record<
+				string,
+				{ furnitype: Array<Record<string, unknown>> }
+			>;
+			// Build map of id → classname from both sections
+			const idToClassname = new Map<number, string>();
+			for (const section of ["roomitemtypes", "wallitemtypes"] as const) {
+				for (const e of furniData[section]?.furnitype ?? []) {
+					const id = Number(e?.id);
+					const classname = typeof e?.classname === "string" ? e.classname : "";
+					if (!Number.isFinite(id) || id <= 0 || !classname) continue;
+					const existing = idToClassname.get(id);
+					if (existing && existing !== classname) {
+						// Conflict: same id used by different classname
+						furniDataIdConflicts.push({
+							classname,
+							itemId: id,
+							conflictingId: id,
+							existingClassname: existing,
+						});
+					} else if (!existing) {
+						idToClassname.set(id, classname);
+					}
+				}
+			}
+			// Remove duplicates (same classname + id pair counted once)
+			const seen = new Set<string>();
+			furniDataIdConflicts = furniDataIdConflicts.filter((c) => {
+				const key = `${c.classname}:${c.conflictingId}`;
+				if (seen.has(key)) return false;
+				seen.add(key);
+				return true;
+			});
+		} catch (err) {
+			onEvent?.({
+				type: "error",
+				message: `FurnitureData id check failed: ${(err as Error).message}`,
+			});
+		}
+	}
+
 	onEvent?.({ type: "progress", message: "Comparing with clone sources…" });
 
 	const sources = await listSources();
@@ -811,6 +868,7 @@ export async function runCatalogAudit(
 		duplicatesMerged,
 		duplicateRowsRemoved,
 		remappedReferences,
+		furniDataIdConflicts: furniDataIdConflicts.length,
 	};
 
 	onEvent?.({