fix: reorder catalog missing-entry scan after structural repair

runCatalogAudit computed missingCatalogEntries from the pre-repair snapshot,
so generated catalog SQL could reference sprite ids deleted by the
duplicate-classname merge and create new orphaned catalog_items rows. Re-derive
entries after repairStructure and add a defensive guard in generateCatalogSql
that skips entries whose item id no longer exists in items_base.

Also fix the catalog_pages INSERT template (18 columns vs 17 values) which made
page creation always fail with 'Column count doesn't match value count'.

Add a sandbox-guarded live repair rehearsal test covering the full pipeline.

src/lib/services/catalog-repair.ts

@@ -24,6 +24,7 @@ export interface CatalogSqlResult {
 	statements: string[];
 	sql: string;
 	count: number;
+	skipped: number;
 }
 
 function escSqlLiteral(value: string): string {
@@ -341,12 +342,25 @@ export async function generateCatalogSql(
 	`)) as unknown as [Array<{ maxId: number | bigint | null }>, unknown];
 	let nextId = Number(maxIdResult[0]?.maxId ?? 0) + 1;
 
+	// Skip entries whose sprite id no longer exists in items_base (e.g. because
+	// a duplicate-classname merge ran between the audit snapshot and this
+	// generation). Inserting them would create orphaned catalog_items rows.
+	const [validIds] = (await db.execute(sql`
+		SELECT id FROM items_base
+	`)) as unknown as [Array<{ id: number }>, unknown];
+	const validItemIds = new Set(validIds.map((r) => Number(r.id)));
+	let skipped = 0;
+
 	// Build a map of caption_save → pageId so multiple items in the same
 	// category share one page (and we emit the page INSERT only once).
 	const pageMap = new Map<string, number>();
 
 	let generated = 0;
 	for (const entry of entries) {
+		if (!validItemIds.has(entry.itemId)) {
+			skipped++;
+			continue;
+		}
 		let pageId: number;
 		if (organizeSql && parentPageId) {
 			const catKey = classifyFurni(entry.classname, entry.itemType);
@@ -367,7 +381,7 @@ export async function generateCatalogSql(
 					const newId = nextPageId++;
 					pageMap.set(captionSave, newId);
 					statements.push(
-						`INSERT INTO catalog_pages (id, caption_save, caption, page_layout, parent_id, min_rank, order_num, icon_image, enabled, visible, includes, page_headline, page_teaser, page_special, page_text1, page_text2, page_text_details, page_text_teaser) VALUES (${newId}, '${escSqlLiteral(captionSave)}', '${escSqlLiteral(caption)}', 'default_3x3', ${parentPageId}, '1', ${catInfo.order}, ${catInfo.icon}, '1', '1', '', '', '', '', '', '', '');`,
+						`INSERT INTO catalog_pages (id, caption_save, caption, page_layout, parent_id, min_rank, order_num, icon_image, enabled, visible, includes, page_headline, page_teaser, page_special, page_text1, page_text2, page_text_details, page_text_teaser) VALUES (${newId}, '${escSqlLiteral(captionSave)}', '${escSqlLiteral(caption)}', 'default_3x3', ${parentPageId}, '1', ${catInfo.order}, ${catInfo.icon}, '1', '1', '', '', '', '', '', '', '', '');`,
 					);
 				}
 				existing = pageMap.get(captionSave);
@@ -394,7 +408,7 @@ export async function generateCatalogSql(
 	}
 
 	statements.push("COMMIT;");
-	return { statements, sql: statements.join("\n"), count: generated };
+	return { statements, sql: statements.join("\n"), count: generated, skipped };
 }
 
 /** Execute generated INSERT statements directly against the database. */