fix: 提交内容改为提示词内容拼接用户输入，不再使用system角色

flomo-ai-desktop/src/api/llm_client.rs

@@ -24,21 +24,20 @@ pub struct ChatCompletionResponse {
 }
 
 pub fn call_llm(settings: &AppSettings, user_input: String, selected_prompt: Option<String>) -> Result<String, String> {
-    let mut messages = Vec::new();
-
-    if let Some(prompt) = selected_prompt {
+    let full_content = if let Some(prompt) = selected_prompt {
         if !prompt.is_empty() {
-            messages.push(ChatMessage {
-                role: "system".to_string(),
-                content: prompt,
-            });
-        }
+            format!("{}{}", prompt, user_input)
+        } else {
+            user_input
         }
+    } else {
+        user_input
+    };
 
-    messages.push(ChatMessage {
+    let messages = vec![ChatMessage {
         role: "user".to_string(),
-        content: user_input,
-    });
+        content: full_content,
+    }];
 
     let request = ChatCompletionRequest {
         model: settings.llm_config.model.clone(),

flomo-ai/app/src/main/java/com/example/flomo_ai/MainActivity.kt

@@ -114,13 +114,20 @@ class MainActivity : AppCompatActivity() {
 
         sendButton.setOnClickListener {
             Log.d("MainActivity", "Send button clicked")
-            // Test log
             Log.e("MainActivity", "TEST ERROR LOG")
             val inputText = inputEditText.text.toString()
             if (inputText.isNotEmpty()) {
                 outputStatusLabel.text = "连接中…"
                 outputTextView.text = "正在生成..."
                 
+                val promptContent = promptContentText.text.toString()
+                val fullContent = if (promptContent.isNotEmpty() && promptContent != "无特殊指令") {
+                    "$promptContent$inputText"
+                } else {
+                    inputText
+                }
+                Log.d("MainActivity", "Full content to send: $fullContent")
+                
                 CoroutineScope(Dispatchers.Main).launch {
                     try {
                         Log.d("MainActivity", "Starting text processing")