fix: notes are saved again

feat: Add test scripts for note saving and updating functionality

src/ui_manager.py

@@ -532,6 +532,7 @@ class UIManager:
         )
         note_text.grid(row=0, column=0, sticky="ew", padx=5, pady=5)
         note_text.insert("1.0", str(note))
+        vars_dict["note_text"] = note_text  # Store the widget for access during save
 
         # Bind text widget to string var for easy access
         def update_note(*args):
@@ -1398,9 +1399,33 @@ class UIManager:
 
             # Get note text from Text widget
             note_text_widget = vars_dict.get("note_text")
+            self.logger.debug(f"note_text_widget found: {note_text_widget is not None}")
+            self.logger.debug(f"vars_dict keys: {list(vars_dict.keys())}")
+
             note_content = ""
             if note_text_widget:
-                note_content = note_text_widget.get(1.0, tk.END).strip()
+                try:
+                    note_content = note_text_widget.get(1.0, tk.END).strip()
+                    self.logger.debug(f"Note content from widget: '{note_content}'")
+                except Exception as e:
+                    self.logger.error(f"Error getting note from text widget: {e}")
+                    # Fallback to StringVar
+                    note_var = vars_dict.get("note")
+                    if note_var:
+                        note_content = note_var.get()
+                        self.logger.debug(
+                            f"Note content from StringVar fallback: '{note_content}'"
+                        )
+            else:
+                # Fallback to StringVar if note_text widget not found
+                note_var = vars_dict.get("note")
+                if note_var:
+                    note_content = note_var.get()
+                    self.logger.debug(f"Note content from StringVar: '{note_content}'")
+                else:
+                    self.logger.error("No note widget or StringVar found!")
+
+            self.logger.debug(f"Final note_content: '{note_content}'")
 
             # Extract dose data dynamically from all medicines
             dose_data = {}