fix: teleport was prepopulating prior wisper

crates/chattyness-user-ui/src/components/chat.rs

@@ -128,8 +128,9 @@ pub fn ChatInput(
     #[prop(optional)]
     on_open_log: Option<Callback<()>>,
     /// Signal containing the display name to whisper to. When set, pre-fills the input.
-    #[prop(optional, into)]
-    whisper_target: Option<Signal<Option<String>>>,
+    /// Uses RwSignal so the component can clear it after consuming.
+    #[prop(optional)]
+    whisper_target: Option<RwSignal<Option<String>>>,
     /// List of available scenes for teleport command.
     #[prop(optional, into)]
     scenes: Option<Signal<Vec<SceneSummary>>>,
@@ -240,6 +241,9 @@ pub fn ChatInput(
                 let _ = input.focus();
                 let len = whisper_prefix.len() as u32;
                 let _ = input.set_selection_range(len, len);
+
+                // Clear the whisper target so it doesn't re-trigger on re-render
+                whisper_signal.set(None);
             }
         });
     }