fix(terminal): suppress competing context menus

Stop contextmenu propagation after recognizing selected xterm output so the native browser overlay cannot block Copy.

apps/web/src/components/features/terminal/terminal.tsx

@@ -498,6 +498,8 @@ export const TerminalComponent = React.forwardRef<TerminalRef, TerminalProps>(
 				}
 
 				event.preventDefault();
+				event.stopImmediatePropagation();
+				event.stopPropagation();
 				setCopyMenu({ x: event.clientX, y: event.clientY, text: selection });
 			};
 
@@ -512,7 +514,7 @@ export const TerminalComponent = React.forwardRef<TerminalRef, TerminalProps>(
 				pasteTextRef.current(text);
 			};
 			container.addEventListener("copy", handleBrowserCopy, true);
-			container.addEventListener("contextmenu", handleTerminalContextMenu);
+			container.addEventListener("contextmenu", handleTerminalContextMenu, true);
 			container.addEventListener("paste", handleBrowserPaste, true);
 
 			// Mobile touch scroll.
@@ -761,7 +763,11 @@ export const TerminalComponent = React.forwardRef<TerminalRef, TerminalProps>(
 				);
 				if (touchCleanup) touchCleanup();
 				container.removeEventListener("copy", handleBrowserCopy, true);
-				container.removeEventListener("contextmenu", handleTerminalContextMenu);
+				container.removeEventListener(
+					"contextmenu",
+					handleTerminalContextMenu,
+					true,
+				);
 				container.removeEventListener("paste", handleBrowserPaste, true);
 				pasteTextRef.current = () => {};
 				bracketedPasteEnabledRef.current = false;