feat: introduce temperature option

Author: xiaotianxt

src/info.json

@@ -167,6 +167,17 @@
           "value": ""
         }
       ]
+    },
+    {
+      "identifier": "temperature",
+      "type": "text",
+      "title": "温度",
+      "defaultValue": "0.2",
+      "desc": "可选项。温度值越高，生成的文本越随机。默认值为 0.2",
+      "textConfig": {
+        "type": "visible",
+        "placeholderText": "0.2"
+      }
     }
   ]
 }

src/main.js

@@ -77,7 +77,7 @@ function generatePrompts(query) {
  * }}
 */
 function buildRequestBody(model, query) {
-    let { customSystemPrompt, customUserPrompt } = $option;
+    let { customSystemPrompt, customUserPrompt, temperature } = $option;
     const { generatedSystemPrompt, generatedUserPrompt } = generatePrompts(query);
 
     customSystemPrompt = replacePromptKeywords(customSystemPrompt, query);
@@ -86,9 +86,11 @@ function buildRequestBody(model, query) {
     const systemPrompt = customSystemPrompt || generatedSystemPrompt;
     const userPrompt = customUserPrompt || generatedUserPrompt;
 
+    const modelTemperature = Number(temperature || 0.2);
+
     const standardBody = {
         model: model,
-        temperature: 0.2,
+        temperature: modelTemperature,
         max_tokens: 1000,
         top_p: 1,
         frequency_penalty: 1,