fix: concurrent cache miss, SVG output, narrowed error handling, format

- Fix integration data cache: check pending promise before TTL to
  prevent returning undefined on concurrent cold-cache access
- Add concurrent-miss test (two parallel callers, one fetch)
- SVG sanitizer: extract <svg> from DOMPurify output to strip
  residual HTML wrapper
- Narrow safeRevalidateTag catch: log unexpected errors, silence only
  known "outside request scope" messages
- Run oxfmt across all packages (206 files formatted)

packages/next-cache-handler/src/index.ts

@@ -22,6 +22,5 @@ export default {
   refreshTags: async () => (await getHandler()).refreshTags(),
   getExpiration: async (...args: Parameters<CacheHandler["getExpiration"]>) =>
     (await getHandler()).getExpiration(...args),
-  updateTags: async (...args: Parameters<CacheHandler["updateTags"]>) =>
-    (await getHandler()).updateTags(...args),
+  updateTags: async (...args: Parameters<CacheHandler["updateTags"]>) => (await getHandler()).updateTags(...args),
 } satisfies CacheHandler;