feat(quick-pane): add compact runtime controls

ui/src-tauri/src/lib.rs

@@ -283,15 +283,16 @@ async fn get_model_catalog() -> Result<Value, String> {
     bridge::get_model_catalog(&socket_path()?).await
 }
 
-fn quick_pane_height(height: f64) -> f64 {
-    height.clamp(240.0, 520.0)
+fn quick_pane_height(height: f64) -> Result<f64, String> {
+    if !height.is_finite() {
+        return Err("Quick Pane height must be finite".to_owned());
+    }
+    Ok(height.clamp(240.0, 520.0))
 }
 
 #[tauri::command]
 fn resize_quick_pane(app: AppHandle, height: f64) -> Result<(), String> {
-    if !height.is_finite() {
-        return Err("Quick Pane height must be finite".to_owned());
-    }
+    let height = quick_pane_height(height)?;
     let quick_pane = app
         .get_webview_window("quick-pane")
         .ok_or_else(|| "Quick Pane window is unavailable".to_owned())?;
@@ -300,7 +301,7 @@ fn resize_quick_pane(app: AppHandle, height: f64) -> Result<(), String> {
     quick_pane
         .set_size(LogicalSize::new(
             f64::from(current_size.width) / scale_factor,
-            quick_pane_height(height),
+            height,
         ))
         .map_err(|error| error.to_string())
 }
@@ -802,9 +803,21 @@ mod tests {
 
     #[test]
     fn quick_pane_height_stays_within_content_limit() {
-        assert_eq!(quick_pane_height(200.0), 240.0);
-        assert_eq!(quick_pane_height(420.0), 420.0);
-        assert_eq!(quick_pane_height(900.0), 520.0);
+        assert_eq!(quick_pane_height(200.0), Ok(240.0));
+        assert_eq!(quick_pane_height(420.0), Ok(420.0));
+        assert_eq!(quick_pane_height(900.0), Ok(520.0));
+    }
+
+    #[test]
+    fn quick_pane_resize_rejects_non_finite_height() {
+        assert_eq!(
+            quick_pane_height(f64::NAN),
+            Err("Quick Pane height must be finite".to_owned())
+        );
+        assert_eq!(
+            quick_pane_height(f64::INFINITY),
+            Err("Quick Pane height must be finite".to_owned())
+        );
     }
 
     #[test]