refactor: remove redundant multi-line search index unwrap clones across all handlers via new get_search_index accessor

server/src/handlers/meta.rs

@@ -21,11 +21,7 @@ impl McpTool for LogDecisionHandler {
     async fn execute(&self, args: Value, state: Arc<MemoryState>) -> Result<String, String> {
         let req: LogDecisionTool = serde_json::from_value(args).map_err(|e| e.to_string())?;
 
-        let idx = state
-            .search_index
-            .read()
-            .unwrap_or_else(|e| e.into_inner())
-            .clone();
+        let idx = state.get_search_index();
         let mut final_id = String::new();
 
         state.adrs.modify(|adrs| {
@@ -344,7 +340,7 @@ impl McpTool for OmniSearchHandler {
     async fn execute(&self, args: Value, state: Arc<MemoryState>) -> Result<String, String> {
         let req: OmniSearchTool = serde_json::from_value(args).map_err(|e| e.to_string())?;
         let matches = {
-            let idx = state.search_index.read().unwrap_or_else(|e| e.into_inner());
+            let idx = state.get_search_index();
             idx.search(&req.query, req.namespace.as_deref())
                 .unwrap_or_default()
         };