initial: import DOLPHIN baseline 2026-04-21 from dolphinng5_predict working tree

Includes core prod + GREEN/BLUE subsystems:
- prod/ (BLUE harness, configs, scripts, docs)
- nautilus_dolphin/ (GREEN Nautilus-native impl + dvae/ preserved)
- adaptive_exit/ (AEM engine + models/bucket_assignments.pkl)
- Observability/ (EsoF advisor, TUI, dashboards)
- external_factors/ (EsoF producer)
- mc_forewarning_qlabs_fork/ (MC regime/envelope)

Excludes runtime caches, logs, backups, and reproducible artifacts per .gitignore.

prod/meta_health_daemon_bsd.rc

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# PROVIDE: meta_health_daemon
+# REQUIRE: DAEMON NETWORKING hazelcast prefect_worker
+# KEYWORD: shutdown
+
+. /etc/rc.subr
+
+name="meta_health_daemon"
+rcvar="meta_health_daemon_enable"
+load_rc_config $name
+
+# Default settings
+: ${meta_health_daemon_enable:="NO"}
+: ${meta_health_daemon_user:="dolphin"}
+: ${meta_health_daemon_root:="/mnt/dolphinng5_predict/prod"}
+
+# Command setup
+command="/usr/local/bin/python3"
+command_args="${meta_health_daemon_root}/meta_health_daemon.py"
+pidfile="/var/run/${name}.pid"
+
+# Run command with nohup and redirect to log for basic daemonization
+start_cmd="daemon -u ${meta_health_daemon_user} -p ${pidfile} ${command} ${command_args}"
+
+run_rc_command "$1"