feat: dictate next signer (#1719)

Adds next recipient dictation functionality to document signing flow,
allowing assistants and signers to update the next recipient's
information during the signing process.

## Related Issue

N/A

## Changes Made

- Added form handling for next recipient dictation in signing dialogs
- Implemented UI for updating next recipient information
- Added e2e tests covering dictation scenarios:
  - Regular signing with dictation enabled
  - Assistant role with dictation
  - Parallel signing flow
  - Disabled dictation state

## Testing Performed

- Added comprehensive e2e tests covering:
  - Sequential signing with dictation
  - Assistant role dictation
  - Parallel signing without dictation
  - Form validation and state management
- Tested on Chrome and Firefox
- Verified recipient state updates in database

apps/remix/app/components/general/template/template-edit-form.tsx

@@ -161,6 +161,7 @@ export const TemplateEditForm = ({
           templateId: template.id,
           meta: {
             signingOrder: data.signingOrder,
+            allowDictateNextSigner: data.allowDictateNextSigner,
           },
         }),
 
@@ -271,6 +272,7 @@ export const TemplateEditForm = ({
               recipients={recipients}
               fields={fields}
               signingOrder={template.templateMeta?.signingOrder}
+              allowDictateNextSigner={template.templateMeta?.allowDictateNextSigner}
               templateDirectLink={template.directLink}
               onSubmit={onAddTemplatePlaceholderFormSubmit}
               isEnterprise={isEnterprise}