[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

ARCHITECTURE_TOOLTIP_SYSTEM.md

@@ -75,9 +75,9 @@ This is the **critical safety mechanism** that prevents timer leaks:
 def _on_widget_destroy(self, event: Optional[tk.Event] = None) -> None:
     """Stop any active timers if the widget is destroyed."""
     self._cancel_show()      # Cancel "show" timer if pending
-    self._cancel_hide()      # Cancel "hide" timer if pending  
+    self._cancel_hide()      # Cancel "hide" timer if pending
     self._cancel_timer("alpha")  # Cancel "alpha" timer if pending
-    
+
     if self.tooltip:
         with contextlib.suppress(tk.TclError):
             self.tooltip.destroy()
@@ -86,7 +86,7 @@ def _on_widget_destroy(self, event: Optional[tk.Event] = None) -> None:
 
 **Why this is critical**:
 - If the widget is destroyed while a timer is pending, Tk will try to fire a callback on a non-existent widget
-- This causes `tk.TclError: invalid command name "..."` 
+- This causes `tk.TclError: invalid command name "..."`
 - The handler cleans up ALL timers before widget destruction
 
 **Binding registered in `__init__`**:
@@ -189,7 +189,7 @@ self._cancel_show()  # Previous show timer canceled
 - **After**: Only Python object created (0.3-0.5KB memory, ~0.3ms per tooltip)
 - **Result**: 100-parameter table: ~200-300ms faster startup, ~1MB less memory
 
-### Hover Phase  
+### Hover Phase
 - **Before**: Tooltip already exists, just show/hide (microseconds)
 - **After**: Tooltip created on-demand (2-3ms), then shown
 - **Result**: First hover noticeable (~3-5ms delay), subsequent hovers instant