ui improvements and feature flags for AI integration

src/explorer.rs

@@ -1,4 +1,7 @@
-use walkdir::{DirEntry, WalkDir};
+use itertools::Itertools;
+use std::fs::{self, DirEntry};
+
+// use walkdir::{DirEntry, WalkDir};
 
 use crate::{
     PROJECT_FOLDER, RightPanelContent,
@@ -249,24 +252,22 @@ impl Explorer {
             });
         })
         .body(|ui| {
-            let entries: Vec<_> = WalkDir::new(PROJECT_FOLDER.join("assets"))
-                .min_depth(1)
-                .max_depth(1) // Only immediate children
-                .sort_by(|a, b| {
+            let entries = fs::read_dir(PROJECT_FOLDER.join("assets"))
+                .unwrap()
+                .filter_map(Result::ok)
+                .sorted_by(|a, b| {
                     // Directories first, then files
-                    let a_is_dir = a.file_type().is_dir();
-                    let b_is_dir = b.file_type().is_dir();
+                    let a_is_dir = a.file_type().unwrap().is_dir();
+                    let b_is_dir = b.file_type().unwrap().is_dir();
                     if a_is_dir == b_is_dir {
-                        a.file_name().cmp(b.file_name())
+                        a.file_name().cmp(&b.file_name())
                     } else if a_is_dir {
                         std::cmp::Ordering::Less
                     } else {
                         std::cmp::Ordering::Greater
                     }
                 })
-                .into_iter()
-                .filter_map(Result::ok)
-                .collect();
+                .collect::<Vec<_>>();
 
             for entry in entries {
                 Self::render_entry(ui, to_load, &entry);
@@ -275,19 +276,16 @@ impl Explorer {
     }
 
     fn render_entry(ui: &mut egui::Ui, to_load: &mut Option<RightPanelContent>, entry: &DirEntry) {
-        let file_type = entry.file_type();
+        let file_type = entry.file_type().unwrap();
         let is_dir = file_type.is_dir();
-        let file_name = entry.file_name().to_string_lossy();
+        let file_name = entry.file_name().to_str().unwrap().to_string();
         let path = entry.path();
 
         if is_dir {
-            let entries: Vec<_> = WalkDir::new(path)
-                .min_depth(1)
-                .max_depth(1)
-                .sort_by(|a, b| a.file_name().cmp(b.file_name()))
-                .into_iter()
+            let entries = fs::read_dir(path)
+                .unwrap()
                 .filter_map(Result::ok)
-                .collect();
+                .collect::<Vec<_>>();
 
             egui::collapsing_header::CollapsingState::load_with_default_open(
                 ui.ctx(),