Forward right/middle mouse drags to Ghostty (fixes tmux right-click menu)

.github/swift-file-length-budget.tsv

@@ -7,7 +7,7 @@
 14270	Sources/TerminalController.swift
 13172	Sources/Workspace.swift
 12348	cmuxTests/AppDelegateShortcutRoutingTests.swift
-12276	Sources/GhosttyTerminalView.swift
+12296	Sources/GhosttyTerminalView.swift
 11669	Sources/Panels/BrowserPanel.swift
 9497	cmuxTests/CLINotifyProcessIntegrationRegressionTests.swift
 8032	Sources/Panels/BrowserPanelView.swift

Sources/GhosttyTerminalView.swift

@@ -7421,6 +7421,26 @@ class GhosttyNSView: NSView, NSUserInterfaceValidations {
         ghostty_surface_mouse_pos(surface, eventPoint.x, bounds.height - eventPoint.y, mouseModsFromEvent(event))
     }
 
+    override func rightMouseDragged(with event: NSEvent) {
+        // Forward right-button drags so mouse-reporting apps receive pointer
+        // motion while the right button is held. Without this, tmux's
+        // right-click context menu (press to open, drag to highlight, release
+        // to select) never sees the drag and cannot track hover state. Mirrors
+        // mouseDragged and matches upstream Ghostty, which funnels every drag
+        // variant to the same position-forwarding path.
+        mouseDragged(with: event)
+    }
+
+    override func otherMouseDragged(with event: NSEvent) {
+        // Only the middle button (buttonNumber 2) is forwarded to Ghostty, to
+        // stay consistent with otherMouseDown/otherMouseUp above.
+        guard event.buttonNumber == 2 else {
+            super.otherMouseDragged(with: event)
+            return
+        }
+        mouseDragged(with: event)
+    }
+
 #if DEBUG
     func debugHasPendingLeftMouseReleaseForTesting() -> Bool {
         hasPendingLeftMouseRelease