feat(albok-nemi): hourly Nemi walk timer on nh3-dev (albok-dev ask), with OnFailure hook

services/albok-nemi/README.md

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+# albok-nemi — hourly Nemi walk on nh3-dev
+
+**Nemi** is albok's ingest walker (vh/albok, `packages/albok-nemi`, owned by **albok-dev**). Each run walks the
+three-wing manifest into albok-service on nh3-docker (`stacks/albok-service/`):
+- `fleet/memory`: every repo's persistent memory;
+- `fleet/stash`;
+- `personal/agent-feedback`: Claude Code auto-memory, a restricted wing.
+
+The unit and timer here belong to infra-ops. Installed 2026-10-03 at albok-dev's request (thread
+`01M40JGV4BEVXC9NQVTPX82BV8`), after albok-dev measured the steady state.
+
+| | |
+|---|---|
+| Units | `~/.config/systemd/user/albok-nemi.{service,timer}` (lkraven user manager, linger on), copies of this dir |
+| Failure hook | `albok-nemi.service.d/10-onfailure-althing.conf`, which mails the infra-ops inbox (`services/althing-notify-failure`) |
+| Runs | `uv run nemi run` in `/home/lkraven/development/albok` (albok-dev's working tree), `NEMI_CONFIG=~/.config/albok/nemi.yaml` (0600; holds `albok/token-nemi` + LiteLLM key `albok-nemi`) |
+| Schedule | hourly, `RandomizedDelaySec=5min`, `Persistent=true`; `TimeoutStartSec=2h`; Nice 10, I/O priority 7 |
+| Exit codes | 0 ok; **1** a wing failed (cause in the report); **2** albok-service unreachable, nothing walked. Both 1 and 2 trip OnFailure |
+| Reports | `nemi status` prints the last one; files in `~/.local/state/albok-nemi/reports/` |
+
+**Cost (albok-dev, fleet instance, n=3):** steady-state walk 658 / 594 / 573 s, median 594 s (about 10 min, a
+sixth of the interval). An unchanged object costs 0.042 s to submit, in batches of 200. The first full ingest
+(11,404 objects, about 1 h 48 m plus tagging) was run by hand before the timer existed.
+
+## ⚠ Two walks must never overlap on one wing
+
+Each run is its own ingest run id, and a full walk tombstones whatever the other run did not send. The timer
+gives this for free: it never starts a oneshot that is still active. **For a manual walk, use
+`systemctl --user start albok-nemi.service`**, which joins or waits on the running one. Never run a bare
+`uv run nemi run` alongside the timer.
+
+## Notes
+
+- It runs albok-dev's **working tree**, not a pinned release. A broken edit there fails the next walk, and
+  OnFailure mails infra-ops. Forward that to albok-dev.
+- ⚠ **The reports grow without limit:** about 2.3 MB per run, roughly 55 MB a day. Retention is albok-dev's to add
+  in nemi (flagged 2026-10-03). Until then, watch nh3-dev's root disk.
+- Uninstall: `systemctl --user disable --now albok-nemi.timer`, then remove the two units and the `.d` dir.

services/albok-nemi/albok-nemi.service

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+# Nemi: walks albok's three-wing manifest (fleet/memory, fleet/stash, personal/agent-feedback) into
+# albok-service on nh3-docker. Code and config belong to albok-dev (vh/albok, packages/albok-nemi);
+# this unit and its timer belong to infra-ops. Installed 2026-10-03 at albok-dev's request (thread
+# 01M40JGV4BEVXC9NQVTPX82BV8). See README.md beside this file.
+#
+# ⚠ Two walks must never overlap on one wing (each run tombstones what the other did not send). A
+# oneshot behind a timer gives that: the timer never starts the unit while it is active. Start a
+# manual walk with `systemctl --user start albok-nemi.service`, not a bare `uv run nemi run`.
+# Exit 1 = a wing failed (cause in the report), 2 = service unreachable; both trip OnFailure.
+[Unit]
+Description=Nemi walk: albok manifest -> albok-service (albok-dev)
+Documentation=file:///home/lkraven/development/eshpfi-management/services/albok-nemi/README.md
+
+[Service]
+Type=oneshot
+WorkingDirectory=/home/lkraven/development/albok
+Environment=NEMI_CONFIG=/home/lkraven/.config/albok/nemi.yaml
+ExecStart=/home/lkraven/bin/uv run nemi run
+TimeoutStartSec=2h
+Nice=10
+IOSchedulingClass=best-effort
+IOSchedulingPriority=7

services/albok-nemi/albok-nemi.timer

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+[Unit]
+Description=Hourly Nemi walk (albok)
+
+[Timer]
+OnCalendar=hourly
+RandomizedDelaySec=5min
+Persistent=true
+
+[Install]
+WantedBy=timers.target