fix: resolve all biomaly lint errors and warnings across CMS

- Fix CSS parser config (tailwindDirectives enabled)
- Fix noDangerouslySetInnerHtml via SanitizedHtml component
- Fix useExhaustiveDependencies in catalog-manager-dialog
- Fix noArrayIndexKey across 26 files (stable keys)
- Fix SVG a11y (titles, roles, aria-labels)
- Fix label/input associations (htmlFor/id pairs)
- Fix static element interactions (role + keyboard support)
- Fix noImgElement, noDescendingSpecificity (disabled - external Habbo URLs)
- Fix noNonNullAssertion, useTemplate, unused vars/imports
- Add SanitizedHtml shared component
- Migrate biome.json to 2.5.4 schema

src/lib/services/catalog-tree.ts

@@ -70,7 +70,7 @@ export async function getTreeFlat(): Promise<TreeNode[]> {
 	const depthCache = new Map<number, number>();
 
 	function computeDepth(pageId: number): number {
-		if (depthCache.has(pageId)) return depthCache.get(pageId)!;
+		if (depthCache.has(pageId)) return depthCache.get(pageId) ?? 0;
 		const page = pageMap.get(pageId);
 		const parentId = page ? toInt(page.parentId, -1) : -1;
 		if (!page || parentId <= 0) {

src/lib/services/clone-import.test.ts

@@ -1,6 +1,7 @@
 // @vitest-environment node
 import { describe, expect, it, vi } from "vitest";
 
+// biome-ignore lint/suspicious/noExplicitAny: test helper for mocking with arbitrary signatures
 type AnyFn = (...args: any[]) => any;
 
 const {

src/lib/services/swf/index.ts

@@ -302,10 +302,10 @@ export function convertSwfToNitro(
 
 				let source = asset.attrs.source || "";
 				if (source && imageSources.has(source)) {
-					source = imageSources.get(source)!;
+					source = imageSources.get(source) ?? source;
 				}
 				if (imageSources.has(assetName)) {
-					source = imageSources.get(assetName)!;
+					source = imageSources.get(assetName) ?? source;
 				}
 
 				const entry: (typeof assets)[string] = source

src/lib/services/swf/xml-processor.ts

@@ -63,7 +63,8 @@ export function parseXml(xml: string): XmlNode | null {
 
 		if (fullMatch.startsWith("</")) {
 			if (stack.length > 0) {
-				const node = stack.pop()!;
+				const node = stack.pop();
+				if (!node) continue;
 				if (stack.length > 0) {
 					stack[stack.length - 1].children.push(node);
 				} else {
@@ -92,7 +93,8 @@ export function parseXml(xml: string): XmlNode | null {
 	}
 
 	while (stack.length > 1) {
-		const node = stack.pop()!;
+		const node = stack.pop();
+		if (!node) break;
 		stack[stack.length - 1].children.push(node);
 	}
 	if (stack.length === 1) nodes.push(stack[0]);