feat: 添加生成系统环境信息提示词功能，并在会话历史中注入该提示词

src/gateway/prompt.rs

@@ -1,7 +1,9 @@
+use std::env;
 use std::fs;
 use std::path::{Path, PathBuf};
 
 use crate::agent::AgentError;
+use crate::config::LLMProviderConfig;
 use crate::platform::atomic_rename;
 
 pub(crate) const DEFAULT_AGENT_PROMPT: &str = include_str!("default_agent_prompt.md");
@@ -100,6 +102,29 @@ fn strip_comments_and_whitespace(content: &str) -> String {
         .join("\n")
 }
 
+/// 生成系统环境信息提示词
+pub(crate) fn generate_system_environment_prompt(config: &LLMProviderConfig) -> String {
+    use std::env::consts::{ARCH, OS};
+
+    let os_name = match OS {
+        "windows" => "Windows",
+        "linux" => "Linux",
+        "macos" => "macOS",
+        "freebsd" => "FreeBSD",
+        _ => OS,
+    };
+
+    let shell = env::var("SHELL").unwrap_or_else(|_| "unknown".to_string());
+    let cwd = env::current_dir()
+        .map(|p| p.display().to_string())
+        .unwrap_or_else(|_| "unknown".to_string());
+
+    format!(
+        "## 系统环境\n- 操作系统: {}\n- 架构: {}\n- Shell: {}\n- 当前工作目录: {}\n- 模型提供商: {}\n- 模型: {}",
+        os_name, ARCH, shell, cwd, config.name, config.model_id
+    )
+}
+
 fn persist_memory_summary(path: &Path, markdown_body: &str) -> Result<(), AgentError> {
     let trimmed = markdown_body.trim();
     if trimmed.is_empty() {

src/gateway/session.rs

@@ -141,6 +141,7 @@ impl Session {
                 prompt_injector,
                 conversations,
                 skill_events,
+                provider_config,
             ),
         })
     }

src/gateway/session_history.rs

@@ -3,10 +3,12 @@ use std::sync::Arc;
 
 use crate::agent::AgentError;
 use crate::bus::ChatMessage;
+use crate::config::LLMProviderConfig;
 use crate::storage::{
     ConversationRepository, SessionRecord, SkillEventRepository, persistent_session_id,
 };
 
+use super::prompt::generate_system_environment_prompt;
 use super::prompt_injector::PromptInjector;
 
 fn preview_text(content: &str, max_chars: usize) -> String {
@@ -24,6 +26,7 @@ pub(crate) struct SessionHistory {
     prompt_injector: PromptInjector,
     conversations: Arc<dyn ConversationRepository>,
     skill_events: Arc<dyn SkillEventRepository>,
+    provider_config: LLMProviderConfig,
 }
 
 impl SessionHistory {
@@ -32,6 +35,7 @@ impl SessionHistory {
         prompt_injector: PromptInjector,
         conversations: Arc<dyn ConversationRepository>,
         skill_events: Arc<dyn SkillEventRepository>,
+        provider_config: LLMProviderConfig,
     ) -> Self {
         Self {
             channel_name: channel_name.into(),
@@ -40,6 +44,7 @@ impl SessionHistory {
             prompt_injector,
             conversations,
             skill_events,
+            provider_config,
         }
     }
 
@@ -259,9 +264,19 @@ impl SessionHistory {
             return Ok(());
         }
 
+        // 注入 Agent Prompt
         let prompt_injector = self.prompt_injector.clone();
         prompt_injector.ensure_initial_prompt(history_is_empty, |message| {
             self.append_persisted_message(chat_id, message)
-        })
+        })?;
+
+        // 注入系统环境提示词
+        let env_prompt = generate_system_environment_prompt(&self.provider_config);
+        self.append_persisted_message(
+            chat_id,
+            ChatMessage::system(env_prompt),
+        )?;
+
+        Ok(())
     }
 }