add loop controller — replace /loop + ScheduleWakeup with external spawn

[ProtocolWarden]

Summary

• tools/loop/controller.py replaces /loop + ScheduleWakeup for the OC watchdog cycle
• Each iteration is a fresh claude -p session — context never accumulates across cycles
• Session writes .context/loop_schedule.json at STEP 10 with {delay_s, state, reason}; controller reads it for adaptive timing
• Enables overnight unattended runs without hitting the 5-hour session context limit

Adaptive cadence (unchanged table, different mechanism)

State	Delay
CRITICAL	180s
DEGRADED	300s
STALLED	600s
ACTIVE	900s
PARKED_OPERATOR_BLOCKED	1800s
HEALTHY	3600s

Usage

nohup python tools/loop/controller.py > /dev/null 2>&1 &
python tools/loop/controller.py --status
python tools/loop/controller.py --stop
# Log: logs/local/loop_controller.log

Files changed

• tools/loop/controller.py — new controller script
• .console/watchdog_loop_prompt.md — STEP 10: write loop_schedule.json, exit cleanly (no ScheduleWakeup)
• docs/operator/watchdog_loop.md — intro, Starting/Stopping sections, embedded STEP 10
• LOOP_START.md — Step 3 updated to controller start commands

Test plan

• python tools/loop/controller.py --status → "No lock file" when not running
• Start controller, confirm --status shows ACTIVE with correct pid
• --stop writes stop flag; controller exits after current session completes
• Session writes .context/loop_schedule.json; controller reads it for next delay

🤖 Generated with Claude Code