chore: 修复 release 构建的编译器警告

- 为 regex::Captures 补全显式生命周期标注
- 将仅用于 debug 日志的局部变量 (media_count/len/total) 用 cfg(debug_assertions) 条件化
- 为仅 debug 读取的 AnthropicProvider::llm_timeout_secs 字段添加 cfg_attr allow(dead_code)

Cargo.lock

@@ -1635,7 +1635,7 @@ dependencies = [
 
 [[package]]
 name = "picobot"
-version = "0.3.2"
+version = "0.3.3"
 dependencies = [
  "anyhow",
  "async-trait",

src/channels/feishu.rs

@@ -1311,6 +1311,7 @@ impl FeishuChannel {
                                         let channel = self.clone();
                                         let bus = bus.clone();
                                         tokio::spawn(async move {
+                                            #[cfg(debug_assertions)]
                                             let media_count = if parsed.media.is_some() { 1 } else { 0 };
                                             #[cfg(debug_assertions)]
                                             tracing::debug!(open_id = %parsed.open_id, chat_id = %parsed.chat_id, content_len = %parsed.content.len(), media_count = %media_count, "Publishing message to bus");

src/config/mod.rs

@@ -1222,13 +1222,13 @@ fn resolve_env_placeholders(content: &str) -> String {
     let re_braces = Regex::new(r"\$\{([A-Z_][A-Z0-9_]*)\}").expect("invalid regex");
     let re_angle = Regex::new(r"<([A-Z_]+)>").expect("invalid regex");
 
-    let content = re_braces.replace_all(content, |caps: &regex::Captures| {
+    let content = re_braces.replace_all(content, |caps: &regex::Captures<'_>| {
         let var_name = &caps[1];
         env::var(var_name).unwrap_or_else(|_| caps[0].to_string())
     });
 
     re_angle
-        .replace_all(&content, |caps: &regex::Captures| {
+        .replace_all(&content, |caps: &regex::Captures<'_>| {
             let var_name = &caps[1];
             env::var(var_name).unwrap_or_else(|_| caps[0].to_string())
         })

src/gateway/session_history.rs

@@ -223,6 +223,7 @@ impl SessionHistory {
     ) -> Result<(), AgentError> {
         if let Some(tid) = topic_id {
             if let Some(history) = self.topic_histories.get_mut(tid) {
+                #[cfg(debug_assertions)]
                 let len = history.len();
                 history.clear();
                 #[cfg(debug_assertions)]
@@ -320,6 +321,7 @@ impl SessionHistory {
     /// 清空所有内存历史（主要用于测试全局重置）。
     /// 不遍历清 DB，生产环境如需清 DB 应由调用方显式调用。
     pub(crate) fn clear_all_history(&mut self) -> Result<(), AgentError> {
+        #[cfg(debug_assertions)]
         let total: usize = self.topic_histories.values().map(|h| h.len()).sum();
         self.topic_histories.clear();
         self.compression_in_flight.clear();

src/mcp/client.rs

@@ -32,7 +32,7 @@ use std::process::Stdio;
 /// Resolve ${ENV_VAR} placeholders in a value string
 fn resolve_env_placeholders_in_value(value: &str) -> String {
     let re = regex::Regex::new(r"\$\{([A-Z_][A-Z0-9_]*)\}").expect("invalid regex");
-    re.replace_all(value, |caps: &regex::Captures| {
+    re.replace_all(value, |caps: &regex::Captures<'_>| {
         let var_name = &caps[1];
         env::var(var_name).unwrap_or_else(|_| caps[0].to_string())
     })

src/providers/anthropic.rs

@@ -125,6 +125,7 @@ pub struct AnthropicProvider {
     api_key: String,
     base_url: String,
     extra_headers: HashMap<String, String>,
+    #[cfg_attr(not(debug_assertions), allow(dead_code))]
     llm_timeout_secs: u64,
     model_id: String,
     temperature: Option<f32>,