feat: migrate to react 19 (#3107)

apps/remix/app/components/general/app-command-menu.tsx

@@ -19,7 +19,7 @@ import { msg } from '@lingui/core/macro';
 import { useLingui } from '@lingui/react';
 import { Trans } from '@lingui/react/macro';
 import { keepPreviousData } from '@tanstack/react-query';
-import { commandScore } from 'cmdk/dist/command-score';
+import { defaultFilter as commandScore } from 'cmdk';
 import {
   ArrowLeftIcon,
   CheckIcon,

apps/remix/app/components/general/document-signing/document-signing-radio-field.tsx

@@ -146,14 +146,17 @@ export const DocumentSigningRadioField = ({ field, onSignField, onUnsignField }:
       {isLoading && <DocumentSigningFieldsLoader />}
 
       {!field.inserted && (
-        <RadioGroup onValueChange={(value) => handleSelectItem(value)} className="z-10 my-0.5 gap-y-1">
+        <RadioGroup
+          value={selectedOption}
+          onValueChange={(value) => handleSelectItem(value)}
+          className="z-10 my-0.5 gap-y-1"
+        >
           {values?.map((item, index) => (
             <div key={index} className="flex items-center">
               <RadioGroupItem
                 className="h-3 w-3 shrink-0"
                 value={item.value}
                 id={`option-${field.id}-${item.id}`}
-                checked={item.checked}
                 disabled={isReadOnly}
               />
               {!item.value.includes('empty-value-') && item.value && (
@@ -167,14 +170,13 @@ export const DocumentSigningRadioField = ({ field, onSignField, onUnsignField }:
       )}
 
       {field.inserted && (
-        <RadioGroup className="my-0.5 gap-y-1">
+        <RadioGroup value={field.customText ?? ''} className="my-0.5 gap-y-1">
           {values?.map((item, index) => (
             <div key={index} className="flex items-center">
               <RadioGroupItem
                 className="h-3 w-3"
                 value={item.value}
                 id={`option-${field.id}-${item.id}`}
-                checked={item.value === field.customText}
                 disabled={isReadOnly}
               />
               {!item.value.includes('empty-value-') && item.value && (

apps/remix/app/components/general/pdf-viewer/pdf-viewer.tsx

@@ -215,7 +215,7 @@ export default function PDFViewer({
 
 type VirtualizedPageListProps = {
   scrollParentRef: ScrollTarget;
-  constraintRef: React.RefObject<HTMLDivElement>;
+  constraintRef: React.RefObject<HTMLDivElement | null>;
   pages: PageMeta[];
   numPages: number;
   pdf: pdfjsLib.PDFDocumentProxy;

apps/remix/app/entry.client.tsx

@@ -31,6 +31,26 @@ function initPosthog() {
   }
 }
 
+/**
+ * Surfaces hydration recoveries (React 19 discards the server HTML and
+ * re-renders on the client instead of dying) so we can track how often
+ * extensions/early clicks interfere with hydration in the wild.
+ */
+function onRecoverableError(error: unknown, errorInfo: { componentStack?: string }) {
+  console.error('[hydration] recovered from error', error, errorInfo.componentStack);
+
+  if (extractPostHogConfig()) {
+    void import('posthog-js').then(({ default: posthog }) => {
+      if (posthog.__loaded) {
+        posthog.capture('$hydration_recoverable_error', {
+          message: error instanceof Error ? error.message : String(error),
+          componentStack: errorInfo.componentStack,
+        });
+      }
+    });
+  }
+}
+
 async function main() {
   const locale = detect(fromHtmlTag('lang')) || 'en';
 
@@ -44,6 +64,7 @@ async function main() {
           <HydratedRouter />
         </I18nProvider>
       </StrictMode>,
+      { onRecoverableError },
     );
   });