[Bug] Plan mode session resume doesn't allow editing or opening plan

Bug Description
Resuming a plan mode session doesn't let you open or keep editing the plan.

Environment Info

• Platform: linux
• Terminal: alacritty
• Version: 2.0.76
• Feedback ID: f9953a02-c432-4724-9756-741c740f2bfa

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /var/home/yalter/.local/share/claude/versions/2.0.76 (expected in multi-process scenarios)\n    at W3$ (/$bunfs/root/claude:2427:2165)\n    at TTA (/$bunfs/root/claude:2427:1885)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-05T10:52:38.275Z"}]