Filter non-actionable "Failed to load Stripe.js" errors from Sentry (#8620) (#8625)

Ad blockers, privacy extensions, and network issues can prevent the
Stripe.js script from loading. Users already see a friendly fallback
message in the UI, so these errors are not actionable. Filter them
in the beforeSend hook alongside the other non-actionable error
categories.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: iHiD

app/javascript/utils/react-bootloader.tsx

@@ -138,7 +138,7 @@ if (process.env.SENTRY_DSN) {
           ex.value?.includes("read the 'sessionStorage' property from 'Window'")
       )
       if (isStorageAccessError) return null
-      
+
       // Drop non-actionable "Maximum call stack size exceeded" errors.
       // These come from browser extensions, third-party scripts, or users
       // with cached bundles (the root cause in app code was fixed in #8408).
@@ -151,6 +151,14 @@ if (process.env.SENTRY_DSN) {
       )
       if (isStackOverflowError) return null
 
+      // Drop non-actionable Stripe.js loading failures (ad blockers,
+      // privacy extensions, or network issues preventing the script from loading).
+      // Users already see a friendly fallback message in the UI.
+      const isStripeLoadError = event.exception?.values?.some((ex) =>
+        ex.value?.includes('Failed to load Stripe.js')
+      )
+      if (isStripeLoadError) return null
+
       const tag = document.querySelector<HTMLMetaElement>(
         'meta[name="user-id"]'
       )