memory optimisation

src/ui/log_view.rs

@@ -161,15 +161,21 @@ fn render_visible_lines(
 
 fn get_line_content(tab: &mut FileTab, show_all: bool, display_idx: usize) -> (usize, String) {
     if show_all {
+        // Main view: read line by display index
         let content = tab
             .line_index
             .read_line(&mut tab.file_handle, display_idx)
             .unwrap_or_default();
         (display_idx, content)
     } else {
+        // Filtered view: get line number from filtered list, then read content on-demand
         if display_idx < tab.filtered_lines.len() {
-            let filtered = &tab.filtered_lines[display_idx];
-            (filtered.line_number, filtered.content.clone())
+            let line_number = tab.filtered_lines[display_idx].line_number;
+            let content = tab
+                .line_index
+                .read_line(&mut tab.file_handle, line_number)
+                .unwrap_or_default();
+            (line_number, content)
         } else {
             (0, String::new())
         }