chore(agent-v2): sync daily changes (#38298)

Signed-off-by: yyh <yuanyouhuilyz@gmail.com>
Co-authored-by: 盐粒 Yanli <mail@yanli.one>
Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: zyssyz123 <916125788@qq.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: 盐粒 Yanli <yanli@dify.ai>
Co-authored-by: 林玮 (Jade Lin) <linw1995@icloud.com>

api/openapi/markdown/console-openapi.md

@@ -12935,7 +12935,7 @@ Default namespace
 | icon_background | string | Icon background color | No |
 | icon_type | [IconType](#icontype) | Icon type | No |
 | name | string | Agent name | Yes |
-| role | string | Agent role | Yes |
+| role | string | Agent role | No |
 
 #### AgentAppDetailWithSite
 
@@ -13062,7 +13062,7 @@ default (the config form sends the full desired feature state on save).
 | icon_type | [IconType](#icontype) | Icon type | No |
 | max_active_requests | integer | Maximum active requests | No |
 | name | string | App name | Yes |
-| role | string | Agent role | Yes |
+| role | string | Agent role | No |
 | use_icon_as_answer_icon | boolean | Use icon as answer icon | No |
 
 #### AgentAverageResponseTimeStatisticResponse
@@ -14569,9 +14569,20 @@ Soft lifecycle state for Agent records.
 | Name | Type | Description | Required |
 | ---- | ---- | ----------- | -------- |
 | enabled | boolean |  | No |
-| model | [AgentSoulModelConfig](#agentsoulmodelconfig) |  | No |
+| model | [AgentSuggestedQuestionsAfterAnswerModelConfig](#agentsuggestedquestionsafteranswermodelconfig) |  | No |
 | prompt | string |  | No |
 
+#### AgentSuggestedQuestionsAfterAnswerModelConfig
+
+Legacy Chat App model config used only for follow-up question generation.
+
+| Name | Type | Description | Required |
+| ---- | ---- | ----------- | -------- |
+| completion_params | object |  | No |
+| mode | string |  | No |
+| name | string |  | Yes |
+| provider | string |  | Yes |
+
 #### AgentTextToSpeechFeatureConfig
 
 | Name | Type | Description | Required |