fix: piper 二进制+依赖库+config 修正 (符号链接指向正确二进制,加 LD_LIBRARY_PATH 和 -c 参数)

src/plugins/ai/mod.rs

@@ -48,6 +48,8 @@ impl AiPlugin {
         model_store: PathBuf,
         tools_dir: PathBuf,
         whisper_lib_dir: Option<PathBuf>,
+        piper_lib_dir: Option<PathBuf>,
+        piper_config: Option<PathBuf>,
         tmp_dir: PathBuf,
         context_window: usize,
     ) -> Self {
@@ -55,6 +57,9 @@ impl AiPlugin {
         if let Some(lib_dir) = whisper_lib_dir {
             backend_builder = backend_builder.with_whisper_lib_dir(lib_dir);
         }
+        if let (Some(lib_dir), Some(config)) = (piper_lib_dir, piper_config) {
+            backend_builder = backend_builder.with_piper_deps(lib_dir, config);
+        }
         let backend = Box::new(backend_builder);
         let models = model_manager::ModelManager::new(model_store);
         let pipeline = ChatPipeline::new(backend, models, tmp_dir, context_window);