Implement dose tracking functionality and enhance CSV migration

- Added a new migration script to introduce dose tracking columns in the CSV.
- Updated DataManager to handle new dose tracking columns and methods for adding doses.
- Enhanced MedTrackerApp to support dose entry and display for each medicine.
- Modified UIManager to create a scrollable input frame with dose tracking elements.
- Implemented tests for delete functionality, dose tracking, edit functionality, and scrollable input.
- Updated existing tests to ensure compatibility with the new CSV format and dose tracking features.

scripts/test_scrollable_input.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+"""
+Test script to verify the scrollable input frame functionality.
+"""
+
+import os
+import sys
+import tkinter as tk
+from tkinter import ttk
+
+# Add src to path
+sys.path.append(os.path.join(os.path.dirname(__file__), "src"))
+
+
+def test_scrollable_input():
+    """Test the scrollable input frame."""
+    from init import logger
+    from ui_manager import UIManager
+
+    # Create a test window
+    root = tk.Tk()
+    root.title("Scrollable Input Frame Test")
+    root.geometry("400x600")  # Smaller window to test scrolling
+
+    # Create UI manager
+    ui_manager = UIManager(root, logger)
+
+    # Create main frame
+    main_frame = ttk.Frame(root, padding="10")
+    main_frame.grid(row=0, column=0, sticky="nsew")
+    root.grid_rowconfigure(0, weight=1)
+    root.grid_columnconfigure(0, weight=1)
+    main_frame.grid_rowconfigure(1, weight=1)
+    main_frame.grid_columnconfigure(0, weight=1)
+
+    # Create the scrollable input frame
+    _input_ui = ui_manager.create_input_frame(main_frame)
+
+    # Add instructions
+    instructions = ttk.Label(
+        root,
+        text="Test the scrolling functionality:\n"
+        "1. Try mouse wheel scrolling over the input area\n"
+        "2. Use the scrollbar on the right\n"
+        "3. Test dose tracking buttons\n"
+        "4. Resize the window to test responsiveness",
+        justify="left",
+    )
+    instructions.grid(row=1, column=0, padx=10, pady=10, sticky="ew")
+
+    # Print success message
+    print("✓ Scrollable input frame created successfully!")
+    print("✓ Medicine dose tracking UI elements loaded")
+    print("✓ Scrollbar functionality active")
+    print("✓ Mouse wheel scrolling enabled")
+    print("\nTest window opened. Close the window when done testing.")
+
+    # Start the test GUI
+    root.mainloop()
+
+
+if __name__ == "__main__":
+    test_scrollable_input()