feat(tools, client): add speaking tasks logic (#61906)

Co-authored-by: Huyen Nguyen <25715018+huyenltnguyen@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

curriculum/schema/challenge-schema.js

@@ -93,7 +93,8 @@ const questionJoi = Joi.object().keys({
     .items(
       Joi.object().keys({
         answer: Joi.string().required(),
-        feedback: Joi.string().allow(null)
+        feedback: Joi.string().allow(null),
+        audioId: Joi.string().allow(null)
       })
     )
     .required()
@@ -334,6 +335,7 @@ const schema = Joi.object().keys({
         'array.unique': 'Dialogues must not have overlapping times.'
       })
   }),
+  showSpeakingButton: Joi.bool(),
   solutions: Joi.array().items(Joi.array().items(fileJoi).min(1)),
   superBlock: Joi.string().regex(slugWithSlashRE),
   superOrder: Joi.number(),