Reduce build warnings

src/runtime/plugin_loader_v2/enabled/loader/error_reporter.rs

@@ -10,6 +10,7 @@ use std::path::PathBuf;
 #[derive(Debug, Clone)]
 pub struct PluginErrorContext {
     pub kind: PluginErrorKind,
+    #[allow(dead_code)]
     pub plugin_name: String,
     pub message: String,
     pub attempted_paths: Vec<String>,
@@ -24,8 +25,10 @@ pub enum PluginErrorKind {
     /// dlopen() failed
     LoadFailed,
     /// Plugin initialization failed
+    #[allow(dead_code)]
     InitFailed,
     /// Version mismatch
+    #[allow(dead_code)]
     VersionMismatch,
 }
 
@@ -75,6 +78,7 @@ impl PluginErrorContext {
     }
 
     /// Create error context for init failure
+    #[allow(dead_code)]
     pub fn init_failed(plugin_name: &str, error_msg: &str) -> Self {
         Self {
             kind: PluginErrorKind::InitFailed,