memory: correct extdev sudo status in 07-25 herald-install entry

The [2026-07-25] nh3-extdev herald-install entry claimed infra-ops was
sudo-less on extdev, explaining the use of the lkraven@ NOPASSWD path.
That parenthetical was wrong: infra-ops has had full NOPASSWD sudo on
extdev since 2026-06-25. Kept the historical action (lkraven@ was used)
and appended a dated correction so a future session self-serves as
infra-ops instead of taking the lkraven@ hop unnecessarily. Surfaced
during the 2026-08-03 herald.py:363 re-nudge-bug arc.

persistent-memory.md

@@ -152,7 +152,7 @@ _As of 2026-08-03 — **session at a natural close; nothing infra-ops-side block
 
 - `[2026-07-26]` **Demo `BIFROST_CLIENT_ALLOWED_HOSTS` += `10.100.10.50:8391`** (wyrd-dev's bifrost memory-store provider; operator-approved). **First live exercise of the #376 config-as-code boundary working as designed** — worldtree-dev routed the delta to infra-ops instead of hand-editing `/opt/demo`. Appended to `/opt/worldtree/.env:25` (now 4 netlocs), recreated ONLY `worldtree-api` (the gated conv-api path), health-gate green, container env verified. **REUSABLE FOOT-GUN:** an env-var change needs a container **RECREATE, not `docker restart`** (env is baked at create); and the demo `.env` defaults `WORLDTREE_IMAGE=:latest` while the box runs a specific SHA — so a naive `compose up` risks the documented stale-`:latest` crash. FIX = capture the running image live (`docker inspect …Config.Image` → `…:9eff09f007ba`) and `sudo env WORLDTREE_IMAGE=<sha> docker compose up -d worldtree-api`. Backup `/opt/worldtree/.env.bak-bifrost-20260726-221602`. **BOUNDARY SEAM:** this was a compose-`.env` var, NOT a `config.yaml` file in `vh/worldtree-instance-configs` — the `.env` holds secrets so it's deliberately not repo-tracked → env-deltas land directly on the box (config *files* are versioned, compose *env vars* aren't). [[reference_worldtree_instance_configs_repo]]
 
-- `[2026-07-25]` **nh3-extdev herald installed — box is now a full v2 push participant.** forseti flagged (relaying operator): extdev had the `althing-herald` binary (`/usr/local/bin/`) but NO unit (skipped the whole v2 arc), so `herald-status` = "notifications suspended" and ldp-dev ran on the `althing-light-monitor` poll fallback. Installed `/etc/systemd/system/althing-herald.service` as a **SYSTEM unit mirroring the receiver** (`User=althing-svc`, `Group=althing`, `Environment=ALTHING_ROOT=/srv/althing`, `ExecStart=/usr/local/bin/althing-herald --poll 5`, enabled) via the **lkraven@ NOPASSWD path** (infra-ops is sudo-less on extdev). Verified: active / 0 restarts / `herald-status` flipped to "✓ herald up." No zellij routes on extdev → heartbeat + wake-FIFO poke only, no pane-dispatch; ldp-dev keeps light-monitor unless it opts into a wake-listener.
+- `[2026-07-25]` **nh3-extdev herald installed — box is now a full v2 push participant.** forseti flagged (relaying operator): extdev had the `althing-herald` binary (`/usr/local/bin/`) but NO unit (skipped the whole v2 arc), so `herald-status` = "notifications suspended" and ldp-dev ran on the `althing-light-monitor` poll fallback. Installed `/etc/systemd/system/althing-herald.service` as a **SYSTEM unit mirroring the receiver** (`User=althing-svc`, `Group=althing`, `Environment=ALTHING_ROOT=/srv/althing`, `ExecStart=/usr/local/bin/althing-herald --poll 5`, enabled) via the **lkraven@ NOPASSWD path** (used under the then-mistaken belief infra-ops was sudo-less — **CORRECTION 2026-08-03: infra-ops has had full NOPASSWD sudo on extdev since 2026-06-25** per [[reference_nh3_extdev_althing_mesh]]; future extdev installs can self-serve as infra-ops without the lkraven@ hop). Verified: active / 0 restarts / `herald-status` flipped to "✓ herald up." No zellij routes on extdev → heartbeat + wake-FIFO poke only, no pane-dispatch; ldp-dev keeps light-monitor unless it opts into a wake-listener.
 
 - `[2026-07-25]` **Booth v0.1.4 — booths are downloadable.** Verbatim `index.html` booths (e.g. edict-design-brief) were served raw with no download affordance. Added `/b/<name>/?download=1` (streams the whole booth as `<name>.zip`, attachment) + `?dl=1` on the file route (forces Content-Disposition attachment so html/md/text saves instead of rendering inline) + ⬇ zip links on the index card (the accessible spot for verbatim booths) and the gallery header. `zip_booth()` helper, 31 tests green; verified live on nh3-dev :8090 (edict-design-brief.zip = index.html + ui-design-brief.md). eshpfi `91a031f` / tag `booth-v0.1.4`.