Fix:max_tokens must be at least 1, got -950, BadRequestError (#10252)

### What problem does this PR solve?
https://github.com/infiniflow/ragflow/issues/10235

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Refactoring

rag/llm/chat_model.py

@@ -870,6 +870,7 @@ class MistralChat(Base):
         return gen_conf
 
     def _chat(self, history, gen_conf={}, **kwargs):
+        gen_conf = self._clean_conf(gen_conf)
         response = self.client.chat(model=self.model_name, messages=history, **gen_conf)
         ans = response.choices[0].message.content
         if response.choices[0].finish_reason == "length":
@@ -882,9 +883,7 @@ class MistralChat(Base):
     def chat_streamly(self, system, history, gen_conf={}, **kwargs):
         if system and history and history[0].get("role") != "system":
             history.insert(0, {"role": "system", "content": system})
-        for k in list(gen_conf.keys()):
-            if k not in ["temperature", "top_p", "max_tokens"]:
-                del gen_conf[k]
+        gen_conf = self._clean_conf(gen_conf)
         ans = ""
         total_tokens = 0
         try:

web/src/constants/common.ts

@@ -43,6 +43,7 @@ export const LanguageList = [
   'English',
   'Chinese',
   'Traditional Chinese',
+  'Russian',
   'Indonesia',
   'Spanish',
   'Vietnamese',
@@ -55,6 +56,7 @@ export const LanguageMap = {
   English: 'English',
   Chinese: '简体中文',
   'Traditional Chinese': '繁體中文',
+  Russian: 'Русский',
   Indonesia: 'Indonesia',
   Spanish: 'Español',
   Vietnamese: 'Tiếng việt',
@@ -68,6 +70,7 @@ export enum LanguageAbbreviation {
   En = 'en',
   Zh = 'zh',
   ZhTraditional = 'zh-TRADITIONAL',
+  Ru = 'ru',
   Id = 'id',
   Ja = 'ja',
   Es = 'es',
@@ -81,6 +84,7 @@ export const LanguageAbbreviationMap = {
   [LanguageAbbreviation.En]: 'English',
   [LanguageAbbreviation.Zh]: '简体中文',
   [LanguageAbbreviation.ZhTraditional]: '繁體中文',
+  [LanguageAbbreviation.Ru]: 'Русский',
   [LanguageAbbreviation.Id]: 'Indonesia',
   [LanguageAbbreviation.Es]: 'Español',
   [LanguageAbbreviation.Vi]: 'Tiếng việt',
@@ -94,6 +98,7 @@ export const LanguageTranslationMap = {
   English: 'en',
   Chinese: 'zh',
   'Traditional Chinese': 'zh-TRADITIONAL',
+  Russian: 'ru',
   Indonesia: 'id',
   Spanish: 'es',
   Vietnamese: 'vi',