Trading tmux session watchdog

OVERRIDES runtime profile: uses no model — pure shell. Marked claude_anthropic because scheduler enforces a known-good profile sentinel; nothing in this script calls a model.

Ensures the dedicated Trading tmux window (target for crypto-trader bot approval messages, swing council output, and trading dev work) exists with claude running inside.

If the window is missing, recreate it. Per Elmar (2026-05-09): "If something happens to it, you just re-create it — not a train smash if we lose history."

The recreated window will get a new tmux pane id; ccgram detects it on its next session-list refresh because the window_name is preserved as "Trading". Crypto-trader topic (id 14010 in ccgram, "crypto-trader" alias in notify.py) routes to whichever window is currently named Trading.