feat: scan local models, redesign sidebar and server panel UI

tauri-app/src-tauri/src/lib.rs

@@ -1,3 +1,4 @@
+use std::path::Path;
 use std::process::{Child, Command};
 use std::sync::Mutex;
 use tauri::{Manager, State};
@@ -114,6 +115,51 @@ fn server_status(state: State<ServerState>) -> String {
     }
 }
 
+/// Scan a directory for .gguf model files.
+/// Returns a list of { name, path } objects.
+#[tauri::command]
+fn scan_models(dir: String) -> Result<Vec<ModelFile>, String> {
+    let path = Path::new(&dir);
+    if !path.exists() {
+        return Err(format!("Directory not found: {dir}"));
+    }
+    if !path.is_dir() {
+        return Err(format!("Not a directory: {dir}"));
+    }
+
+    let entries = std::fs::read_dir(path).map_err(|e| e.to_string())?;
+    let mut models = Vec::new();
+
+    for entry in entries.flatten() {
+        let p = entry.path();
+        if p.is_file() {
+            if let Some(ext) = p.extension() {
+                if ext.eq_ignore_ascii_case("gguf") {
+                    let name = p
+                        .file_name()
+                        .unwrap_or_default()
+                        .to_string_lossy()
+                        .to_string();
+                    let full_path = p.to_string_lossy().to_string();
+                    models.push(ModelFile {
+                        name,
+                        path: full_path,
+                    });
+                }
+            }
+        }
+    }
+
+    models.sort_by(|a, b| a.name.cmp(&b.name));
+    Ok(models)
+}
+
+#[derive(serde::Serialize, Clone)]
+pub struct ModelFile {
+    pub name: String,
+    pub path: String,
+}
+
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
     tauri::Builder::default()
@@ -121,6 +167,7 @@ pub fn run() {
         .manage(ServerState(Mutex::new(None)))
         .invoke_handler(tauri::generate_handler![
             query_gpu,
+            scan_models,
             start_server,
             stop_server,
             server_status