feat: Controller hotbars with cross layout, separate storage, and sync with game

- Add controller hotbars: 8 cross bars (L2/R2 style), separate from normal hotbars 1-8
- Controller bar slot data stored in config (not game StandardHotbars) so layouts can differ per mode
- Drag-and-drop on controller bars: from game, shift+drag rearrange, release outside to clear
- Independent controller bar keybinds with modifier+trigger combinations (e.g. L2+South)
- Optional 'Sync bar mode with game client': follow Character Config Mouse/Gamepad toggle (PadMode)
- Clone/copy actions: normal hotbars ↔ controller bars
- Restore controller bar layout button; deploy to devPlugins on Release build

Made-with: Cursor

Helpers/InputsHelper.cs

@@ -475,6 +475,9 @@ namespace HSUI.Helpers
                 // When leaving PvP, force load PvE hotbars so HSUI bars don't keep showing PvP actions.
                 ActionBarsManager.TryRestorePvEHotbarsAfterLeavePvP();
 
+                // Controller bar custom keybinds (when controller hotbars enabled)
+                ControllerBarKeybindExecutor.Process(framework);
+
                 // Keep WndProc hooked when: proxy mode (for mouseover) OR we need to block game drag
                 // release (so dropping on HSUI action bar doesn't execute the ability).
                 bool needHook = IsProxyEnabled || ShouldBlockGameDragRelease();
@@ -567,6 +570,7 @@ namespace HSUI.Helpers
 
             _wndHandle = hWnd;
             _wndProcDelegate = WndProcDetour;
+            _wndProcHandle = GCHandle.Alloc(_wndProcDelegate, GCHandleType.Normal); // Prevent GC of delegate while hooked
             _wndProcPtr = Marshal.GetFunctionPointerForDelegate(_wndProcDelegate);
             _imguiWndProcPtr = SetWindowLongPtr(hWnd, GWL_WNDPROC, _wndProcPtr);
 
@@ -593,6 +597,8 @@ namespace HSUI.Helpers
             }
             finally
             {
+                if (_wndProcHandle.IsAllocated)
+                    _wndProcHandle.Free();
                 _wndHandle = IntPtr.Zero;
                 _imguiWndProcPtr = IntPtr.Zero;
                 _wndProcPtr = IntPtr.Zero;
@@ -614,6 +620,7 @@ namespace HSUI.Helpers
 
         private IntPtr _wndHandle = IntPtr.Zero;
         private WndProcDelegate _wndProcDelegate = null!;
+        private GCHandle _wndProcHandle; // Keeps delegate alive while WndProc is hooked; freed in RestoreWndProc
         private IntPtr _wndProcPtr = IntPtr.Zero;
         private IntPtr _imguiWndProcPtr = IntPtr.Zero;