Distillation

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<observations> Date: Jun 22, 2026 * 🟡 (13:49) User reported recurring issue: `AdvertiseServices: null` (service advertise pref wiped again) * 🟡 (13:49) Tool result confirmed state at time of issue: opencode listening on port 4096 (pid=328317), serve config shows `Services: ['svc:opencode']`, tags `['tag:opencode-host']`, `service-host: True`, `services/opencode: True`, drop-in present (`ExecStartPost=/bin/sh -c 'sleep 5; /usr/bin/tailscale serve advertise svc:opencode || true'`), but `AdvertiseServices: null` and HTTPS timing out (curl: (28) 10002ms) * 🟡 (13:49) Tool result confirmed tailscaled has been running since Jun 13 14:56:10 UTC (`ActiveEnterTimestamp=Sat 2026-06-13 14:56:10 UTC`) — did NOT restart, ruling out tailscaled restart as cause * 🟡 (13:49) Root cause identified: re-authentication event at 13:43 UTC Jun 22 wiped `AdvertiseServices` at runtime — logs show `control: authRoutine: exiting` + `AuthURL is https://login.tailscale.com/a/3f8c35f010f13` at