v0.12.11

Fix Codex failures in workspaces with long saved sessions by resuming without returning the full turn history. Preserve saved sessions on resume failure and close failed transports, including stdin for npm-launched native children.

Make terminal repaint restoration atomic so the renderer cannot write a TUI frame into the ordinary terminal before F6 copy.

Handle Telegram /start with “Spynel is running.” without adding it to help or the command list.

Validation: full Go tests, vet, build, race checks, smoke tests, terminal replay, and two real /workspace TUI startup/message/F6/shutdown cycles. All four native targets passed the release validation gate.