fix(dashboard): prevent unhandled promise rejections and CodeMirror crash

apps/dashboard/src/components/contexts/create-context-form.tsx

@@ -92,11 +92,15 @@ export const CreateContextForm = (props: CreateContextFormProps) => {
 
     const parsedData = formData.data ? JSON.parse(formData.data) : {};
 
-    await createContext({
-      type: formData.type.trim(),
-      id: formData.id.trim(),
-      ...(parsedData && Object.keys(parsedData).length > 0 ? { data: parsedData } : {}),
-    });
+    try {
+      await createContext({
+        type: formData.type.trim(),
+        id: formData.id.trim(),
+        ...(parsedData && Object.keys(parsedData).length > 0 ? { data: parsedData } : {}),
+      });
+    } catch {
+      // errors are handled by the mutation's onError callback
+    }
   };
 
   return (

apps/dashboard/src/components/primitives/editor.tsx

@@ -315,6 +315,7 @@ export const Editor = React.forwardRef<ReactCodeMirrorRef, EditorProps>(
     },
     ref
   ) => {
+    const safeValue = typeof value === 'string' ? value : String(value ?? '');
     const onChangeRef = useDataRef(onChange);
     const extensions = useMemo(
       () => [...(extensionsProp ?? []), baseTheme({ multiline })],
@@ -373,7 +374,7 @@ export const Editor = React.forwardRef<ReactCodeMirrorRef, EditorProps>(
         height="auto"
         placeholder={placeholder}
         basicSetup={basicSetup}
-        value={value}
+        value={safeValue}
         onChange={onChangeCallback}
         theme={theme}
         {...restCodeMirrorProps}

apps/dashboard/src/components/subscribers/subscriber-overview-form.tsx

@@ -455,8 +455,12 @@ export function SubscriberOverviewForm(props: SubscriberOverviewFormProps) {
         open={isDeleteModalOpen}
         onOpenChange={setIsDeleteModalOpen}
         onConfirm={async () => {
-          await deleteSubscriber({ subscriberId: subscriber.subscriberId });
-          setIsDeleteModalOpen(false);
+          try {
+            await deleteSubscriber({ subscriberId: subscriber.subscriberId });
+            setIsDeleteModalOpen(false);
+          } catch {
+            // errors are handled by the mutation's onError callback
+          }
         }}
         title="Delete subscriber"
         description={

apps/dashboard/src/components/subscribers/subscriber-row.tsx

@@ -113,7 +113,12 @@ export const SubscriberRow = ({ subscriber, subscribersCount, firstTwoSubscriber
   };
 
   const handleDeletion = async () => {
-    await deleteSubscriber({ subscriberId: subscriber.subscriberId });
+    try {
+      await deleteSubscriber({ subscriberId: subscriber.subscriberId });
+    } catch {
+      // errors are handled by the mutation's onError callback
+      return;
+    }
     setIsDeleteModalOpen(false);
 
     const hasSingleSubscriber = subscribersCount === 1;

apps/dashboard/src/components/topics/create-topic-form.tsx

@@ -109,12 +109,16 @@ export const CreateTopicForm = (props: CreateTopicFormProps) => {
       onSubmitStart();
     }
 
-    await createTopic({
-      topic: {
-        name: formData.name.trim(),
-        key: formData.key.trim(),
-      },
-    });
+    try {
+      await createTopic({
+        topic: {
+          name: formData.name.trim(),
+          key: formData.key.trim(),
+        },
+      });
+    } catch {
+      // errors are handled by the mutation's onError callback
+    }
   };
 
   return (

apps/dashboard/src/pages/create-subscriber.tsx

@@ -85,9 +85,13 @@ export function CreateSubscriberPage() {
     }, {});
 
     form.reset(formData);
-    await createSubscriber({
-      subscriber: { ...dirtyPayload, subscriberId: formData.subscriberId },
-    });
+    try {
+      await createSubscriber({
+        subscriber: { ...dirtyPayload, subscriberId: formData.subscriberId },
+      });
+    } catch {
+      // errors are handled by the mutation's onError callback
+    }
   };
 
   return (