feat: phase1-3

frontend/src/components/config/ConfigForm.tsx

@@ -146,6 +146,13 @@ const ConfigForm: React.FC<ConfigFormProps> = ({ config, onChange }) => {
             onChange={onChange}
             label={t("config.sections.api.sanitizeMessages")}
           />
+
+          <ConfigCheckbox
+            name="reuse_conversation"
+            checked={config.reuse_conversation}
+            onChange={onChange}
+            label={t("config.sections.api.reuseConversation")}
+          />
         </div>
       </ConfigSection>
 

frontend/src/locales/en/translation.json

@@ -152,7 +152,8 @@
         "preserveChats": "Preserve Chats",
         "webSearch": "Web Search",
         "webCountTokens": "Enable web count_tokens",
-        "sanitizeMessages": "Sanitize messages (trim whitespace)"
+        "sanitizeMessages": "Sanitize messages (trim whitespace)",
+        "reuseConversation": "Reuse Conversations (reduce input tokens)"
       },
       "cookie": {
         "title": "Cookie Settings",

frontend/src/locales/zh/translation.json

@@ -152,7 +152,8 @@
         "preserveChats": "保留聊天",
         "webSearch": "网页搜索",
         "webCountTokens": "允许 Web 渠道调用 count_tokens",
-        "sanitizeMessages": "消息清理（去除空白）"
+        "sanitizeMessages": "消息清理（去除空白）",
+        "reuseConversation": "复用对话（减少输入 Token 消耗）"
       },
       "cookie": {
         "title": "Cookie设置",

frontend/src/types/config.types.ts

@@ -21,6 +21,7 @@ export interface ConfigData {
   web_search: boolean;
   enable_web_count_tokens: boolean;
   sanitize_messages: boolean;
+  reuse_conversation: boolean;
 
   // Cookie settings
   skip_first_warning: boolean;