🐛 fix(gui): add time import and fix left panel layout scaling

- Add missing 'import time' for _run_steps_worker
- Fix left panel layout: remove rowspan=2 to prevent overflow
- Left panel now correctly occupies only lower half of window

src/gui/main_window.py

@@ -8,6 +8,7 @@ from __future__ import annotations
 
 import os
 import threading
+import time
 import tkinter as tk
 from pathlib import Path
 from typing import Callable
@@ -145,7 +146,7 @@ class MainWindow(ctk.CTk):
 
         # ── Left Panel: Workflow Steps ──
         left_frame = ctk.CTkFrame(main_frame)
-        left_frame.grid(row=0, column=0, rowspan=2, sticky="nsew", padx=(0, PADDING))
+        left_frame.grid(row=1, column=0, sticky="nsew", padx=(0, PADDING))
         left_frame.grid_rowconfigure(3, weight=1)
         left_frame.grid_columnconfigure(0, weight=1)
 
@@ -154,7 +155,7 @@ class MainWindow(ctk.CTk):
 
         # ── Right Panel: Configuration ──
         right_frame = ctk.CTkFrame(main_frame)
-        right_frame.grid(row=0, column=1, sticky="nsew", padx=(PADDING, 0))
+        right_frame.grid(row=1, column=1, sticky="nsew", padx=(PADDING, 0))
         right_frame.grid_rowconfigure(4, weight=1)
 
         self._build_config_panel(right_frame)