Fix macro not executing correctly on first run after save

The commands list was stored as a shallow copy, meaning the individual
command dicts were shared references with the CommandBuilder widget.
When the dialog closed, these shared objects could be affected.

Fix: Use copy.deepcopy() when storing commands in add_macro() and
update_macro() to ensure the macro manager has its own independent
copy of all command data.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

macro_manager.py

@@ -1,5 +1,6 @@
 # Macro management and execution with command sequence support
 
+import copy
 import json
 import os
 import uuid
@@ -163,11 +164,11 @@ class MacroManager:
         # Process image if provided
         image_path_reference = self._process_image(image_path) if image_path else ""
 
-        # Create macro data
+        # Create macro data (deep copy commands to avoid reference issues)
         macro_data = {
             "name": name,
             "type": "sequence",
-            "commands": commands,
+            "commands": copy.deepcopy(commands),
             "category": category,
             "image_path": image_path_reference,
             "last_used": 0
@@ -197,11 +198,11 @@ class MacroManager:
         else:
             image_path_reference = macro.get("image_path", "")
 
-        # Update macro data
+        # Update macro data (deep copy commands to avoid reference issues)
         self.macros[macro_id] = {
             "name": name,
             "type": "sequence",
-            "commands": commands,
+            "commands": copy.deepcopy(commands),
             "category": category,
             "image_path": image_path_reference,
             "last_used": macro.get("last_used", 0)