fix(ci): satisfy biome lint

- Merge the two preview.error locale blocks so the last one stops shadowing title/body/copyError (noDuplicateObjectKeys)
- DesignCardPreview: cacheKey(id, updatedAt) instead of cacheKey(design) so the useEffect dep list matches the capture (useExhaustiveDependencies)
- Auto-apply biome --write: formatter nits in PreviewPane/provider-settings + replace delete operator in onboarding-ipc

Author: hqhq1025

apps/desktop/src/main/onboarding-ipc.ts

@@ -660,7 +660,7 @@ async function runUpdateProvider(input: UpdateProviderInput): Promise<Onboarding
   // a string level means "set it". Handle separately from the spread above
   // because the `...undefined ? {} : {...}` pattern can't express "delete".
   if (input.reasoningLevel === null) {
-    delete updated.reasoningLevel;
+    updated.reasoningLevel = undefined;
   } else if (input.reasoningLevel !== undefined) {
     updated.reasoningLevel = input.reasoningLevel;
   }

apps/desktop/src/main/provider-settings.ts

@@ -131,9 +131,7 @@ export function toProviderRows(
       // codex-* providers are treated as no-auth / IP-gated by default —
       // absent secret is a legitimate state, not a "missing key" warning.
       hasKey: ref !== undefined || provider.startsWith('codex-'),
-      ...(entry?.reasoningLevel !== undefined
-        ? { reasoningLevel: entry.reasoningLevel }
-        : {}),
+      ...(entry?.reasoningLevel !== undefined ? { reasoningLevel: entry.reasoningLevel } : {}),
       ...(rowError !== undefined ? { error: rowError } : {}),
     });
   }

apps/desktop/src/renderer/src/components/PreviewPane.tsx

@@ -404,9 +404,7 @@ export function PreviewPane({ onPickStarter }: PreviewPaneProps) {
   // or chat history), the preview IS coming — we're just waiting on the IPC
   // round-trip for the snapshot. Show a skeleton instead of the new-design
   // welcome screen so users don't read the transient state as "load failed".
-  const currentDesign = currentDesignId
-    ? designs.find((d) => d.id === currentDesignId)
-    : undefined;
+  const currentDesign = currentDesignId ? designs.find((d) => d.id === currentDesignId) : undefined;
   const designHasContent =
     currentDesign !== undefined &&
     ((currentDesign.thumbnailText !== null && currentDesign.thumbnailText.length > 0) ||

apps/desktop/src/renderer/src/views/hub/DesignCardPreview.tsx

@@ -51,8 +51,8 @@ const LS_PREFIX = 'designCardPreview:';
 const LS_MAX_CHARS = 300_000; // ~ 300 KB per entry ceiling; skip caching huge HTML
 const LS_MAX_ENTRIES = 40;
 
-function cacheKey(d: Design): string {
-  return `${d.id}:${d.updatedAt}`;
+function cacheKey(id: string, updatedAt: string): string {
+  return `${id}:${updatedAt}`;
 }
 
 function readCache(key: string): string | null {
@@ -104,7 +104,9 @@ function pruneOldestCacheEntriesIfNeeded(): void {
 }
 
 export function DesignCardPreview({ design }: DesignCardPreviewProps) {
-  const [html, setHtml] = useState<string | null>(() => readCache(cacheKey(design)));
+  const [html, setHtml] = useState<string | null>(() =>
+    readCache(cacheKey(design.id, design.updatedAt)),
+  );
   const [failed, setFailed] = useState(false);
   const [visible, setVisible] = useState(false);
   const [scale, setScale] = useState(0.22);
@@ -166,7 +168,7 @@ export function DesignCardPreview({ design }: DesignCardPreviewProps) {
 
   useEffect(() => {
     if (!visible) return;
-    const key = cacheKey(design);
+    const key = cacheKey(design.id, design.updatedAt);
     const cached = readCache(key);
     if (cached !== null) {
       setHtml(cached);