fix: mini timer renders via window label instead of hash routing

The mini timer window was blank because hash-based routing
(createWebHashHistory) doesn't work with Tauri's WebviewUrl path.
Now App.vue detects the mini timer by checking getCurrentWindow().label
=== 'mini-timer' and renders the MiniTimer component directly,
bypassing the router entirely.

src-tauri/src/commands.rs

@@ -1132,9 +1132,9 @@ pub fn open_mini_timer(app: tauri::AppHandle) -> Result<(), String> {
         return Ok(());
     }
 
-    // Load root URL — the app uses hash-based routing (createWebHashHistory),
-    // so we set the hash fragment via eval after the window is created.
-    let win = tauri::WebviewWindowBuilder::new(&app, "mini-timer", WebviewUrl::App(Default::default()))
+    // Load root URL — App.vue detects the "mini-timer" window label
+    // and renders MiniTimer directly, bypassing the router.
+    tauri::WebviewWindowBuilder::new(&app, "mini-timer", WebviewUrl::App(Default::default()))
         .title("Timer")
         .inner_size(300.0, 64.0)
         .always_on_top(true)
@@ -1144,9 +1144,6 @@ pub fn open_mini_timer(app: tauri::AppHandle) -> Result<(), String> {
         .build()
         .map_err(|e| e.to_string())?;
 
-    // Navigate Vue Router to the mini-timer route via hash
-    win.eval("window.location.hash = '/mini-timer'").ok();
-
     Ok(())
 }