the drive was fine and my instrument was not — corrected, and R-542 filed

I read „formatted but not mounted" off /api/disks/candidates and briefly held it as a
product fault. The storage page — the surface a household opens — says the opposite
and is right: Adatlemez, /mnt/felhom-drives/adatlemez, default, active, ext4.

R-542 records the real (small) defect: that endpoint offers a REGISTERED, in-use
drive under „initialize", with already_mounted null. The page filters it out, so no
customer sees it; it fed a formatting flow and it misled a session, which is enough.

Also recorded: off-site is LIVE on this fresh box by default — „Aktív — nincs
kijelölt alkalmazás" — an hour after that default shipped, with nobody pressing
anything.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

documentation/backlog/OPEN-ITEMS.md

@@ -724,6 +724,7 @@ class (an image `VOLUME` at an unmounted path) is still live — `immich-server`
 | **R-539** | **[P3-LOW] The restart brake catches a FAST crash loop and is blind to a SLOW one — add a second, slower counter (operator ruling 2026-09-16).** MEASURED 2026-09-16 (R-531): four controller restarts 20 minutes apart, none accumulating, because the budget window is 15 minutes; the only trace is an `info` `controller_restarted_by_agent` event, which mails nobody. A box whose controller dies every 20 minutes is restarted forever and nothing tells the operator. **The ruling:** a second counter — N restarts in 24 h → `controller_slow_crashloop` (warning) — kept beside the existing 3-in-15-minutes brake, which is unchanged. **Not built in the 2026-09-16 task** (its brief said the budget is a design and this task measures it); it is the nightly's to build. Needs: the agent-side counter, the new event type in `allowedEventTypes` + `customerMessages`, and a red-proof that a 20-minute cycle raises it while a healthy box never does. | **READY — rank P3-LOW; owner: CC (agent + hub)** |
 | **R-540** | **[P3-LOW] The hub knows exactly ONE off-site pool box, so there is no rule for what happens when it fills.** Read from source 2026-09-16 while making off-site the default: `HETZNER_POOL_BOX_ID` is a single value, and every shared customer becomes a sub-account on that box. With off-site now ON for every new customer (hub v0.116.0) the box fills faster, and the fill warning (80%/90% of the box, `monitor/offsite.go`) tells the operator it is filling but nothing says which box a new customer should land on. **Needs a selection rule** (least-full, or explicit per-customer), not a bigger box. No customer is at risk today: the pool box read 0.3% full (2.7 GB of 1 TB), Σ shared quota 150 GB, oversub 0.15x. | **READY — rank P3-LOW; owner: CC (hub)** |
 | **R-541** | **[P3-LOW] There is no path to move a customer between off-site boxes, or from shared to dedicated.** Read from source 2026-09-16: provisioning is idempotent-reuse keyed on the customer (`shared already provisioned for tester-1 (subaccount 311327)`), and a dedicated deprovision destroys the repository — so "move this customer" has no safe route today. It becomes reachable the moment R-540's second pool box exists, or when a customer outgrows the shared model. **Needs:** a move that copies the repository, re-keys, and only then releases the old sub-account — a new mechanism nobody has measured. | **READY — rank P3-LOW; owner: CC (hub) — design first** |
+| **R-542** | **[P3-LOW] `/api/disks/candidates` offers a REGISTERED, in-use drive under „initialize".** MEASURED 2026-09-16 on the fresh box (controller 0.244.0): after `/dev/sdb` was formatted, mounted at `/mnt/felhom-drives/adatlemez` and registered as the default data drive, the endpoint still listed it under `initialize` (and again under `attach` with `already_mounted: null`). **Customer-invisible today:** the Meghajtók page filters correctly — its „Nem regisztrált meghajtók" section lists none, and the drive shows as „Adatlemez · Alapértelmezett · Aktív". So the defect is in the raw endpoint that feeds a FORMATTING flow, not in the page. **It also misleads a session:** I read „not mounted" off this endpoint and briefly filed a false finding against the product (corrected in `audits/evidence-backup-promise-2026-09-16/phaseE-freshbox.txt`). **Fix shape:** exclude paths the controller has registered from `initialize`, and set `already_mounted` from the real mount state rather than null. | **READY — rank P3-LOW; owner: CC (controller/agent)** |
 | **R-537** | **[P1-HIGH] The app-backup page labels the tier-1 backup „DB + Konfig + Adatok" and prints the app's data-drive size next to it — but the tier-1 unit contains NO drive-side app data at all.** MEASURED 2026-09-16 on the drill box (fresh install, controller 0.243.0, one drive, tier 2 and tier 3 both „Nincs beállítva"): five photos (3 000 000 B) were uploaded into Nextcloud through its own WebDAV interface, then the customer-visible „Mentés most" was pressed (`POST /api/backup/run` → 200, the unit grew 25 337 B → 978 MB). The resulting unit's `manifest.json` lists `db-dumps` + three **docker volume** dumps and nothing else; listing the 781 MB `nextcloud_nextcloud_html.tar` (29 346 entries, positive control `version.php` = 3 hits) gives **`Fotok` = 0 and `nyaralas` = 0**, and `./data/` is the empty bind-mount point. A `find` over the whole `backups/` tree for `*appdata*` / `*Fotok*` returns nothing. The page nevertheless renders „1. mentés … DB + Konfig + Adatok" and „Nextcloud Adatlemez 65.1 MB" — a size measured on exactly the data it does not copy (`internal/web/handlers.go:1176-1178`, `BackupContents`). **This is a truth defect, not a design defect:** `07-backup-architecture.md` §6.2 places nextcloud's file leg at **Tier 2 and Tier 3 only**, and its „[FACT] What the whole-guest tiers do NOT carry" says `mp8 /mnt/felhom-drives` is out of vzdump scope (confirmed live: „excluding bind mount point mp8 … (not a volume)"). So on a one-drive box with no off-site tier — the state every fresh install starts in — the household's files are in **no backup**, while the page says „Adatok". Same family as R-517/R-518. **Fix shape:** render tier-1 contents from the capture set actually written (`ComputeCaptureSet`), so a unit with no file leg reads „DB + Konfig" and the drive size is not shown beside it; and say on the page that the app's files need tier 2 or tier 3. Evidence: `audits/evidence-drill-0243-2026-09-16/phase2-f10.txt`. **CLOSED 2026-09-16 — controller v0.244.0, proven live.** The contents label is computed PER TIER from what that tier captures: Tier 1 says „Adatok" only when the app's data really is in the volumes the unit captured, and a class-A app carries one sentence saying where its files ARE protected. Proven on demo-hp through the page the customer opens: Paperless-ngx reads „1. mentés … DB + Konfig" with „Az alkalmazás fájljait a távoli másolat (és a második meghajtó) védi …", while its „2. mentés" row still reads „DB + Konfig + Adatok". Red-proof: restoring the old app-shaped label fails `TestAppBackupRows_Tier1LabelDoesNotClaimFilesItCannotHold`. | **CLOSED 2026-09-16 — controller v0.244.0 (proven live on demo-hp)** |
 | **R-538** | **[P1-HIGH] A tier-1 app restore reports plain success and leaves Nextcloud listing files whose bytes were never in the backup — and it destroys the app's own trash, the customer's last copy.** MEASURED 2026-09-16 on the drill box, F10 („a child deletes the photo folder"): the five photos were deleted through Nextcloud (DELETE 204, PROPFIND 404), then restored through the page exactly as a customer would (`POST /backup/restore` `stack_name=nextcloud` `snapshot_id=helyi` → 302, finished in **35 s**, „A(z) nextcloud: 3 adatkötet és az adatbázis visszaállítva — az alkalmazás újraindult."). Afterwards the folder is back and **lists all five photos**, and **none of them opens**: `GET nyaralas-1..5` = 404 / 503×4 with `Sabre\DAV\Exception\NotFound`, while the positive controls at the same moment pass (`status.php` 200, WebDAV PUT 201, GET 200). Cause: the replayed MariaDB dump (11:01:45Z) knows the photos, the bytes live on `mp8` and were never captured (R-537). **Worse:** the bytes were still on the drive in Nextcloud's own trash (`appdata/nextcloud/admin/files_trashbin/files/Fotok.d1789556707/nyaralas-1..5.jpg`, all five present) and the restored database no longer references them — the trash listing comes back **empty**, so „restore from trash", the one route that would have worked, is gone. The customer is left with five unopenable photos, a success message, and no warning. **Fix shape:** before replaying a database whose app has an uncaptured file leg, refuse or warn („ennek az alkalmazásnak a fájljai nincsenek ebben a mentésben — a visszaállítás után a fájlok hiányozni fognak"); and never present a DB-only restore of a class-A app as a complete one. Evidence: `audits/evidence-drill-0243-2026-09-16/phase2-f10.txt`. **CLOSED 2026-09-16 — controller v0.244.0, proven live.** A unit restore refuses before anything is touched when the unit cannot return the app's drive-side files, and names the route that can. Fired live on demo-hp: `POST /backup/restore` for paperless-ngx → 302 with „Ez a mentés nem tartalmazza az alkalmazás fájljait, ezért nem állítjuk vissza az adatbázist föléjük — a fájlok így a helyükön maradnak. A fájlok a távoli másolatból állíthatók vissza …", and the app read `running` before AND after, so nothing was stopped and no trash was made unreachable. The database-and-settings-only path exists as a separately worded second step. Red-proof: disabling the guard fails `TestUnitRestore_RefusesWhenTheUnitCannotHoldTheFiles`. | **CLOSED 2026-09-16 — controller v0.244.0 (proven live on demo-hp)** |
 | **R-525** | **[P3-LOW] FileBrowser has its own login; putting it behind the dashboard session (traefik forwardAuth or Quantum proxy auth) is a new mechanism nobody has measured.** Filed 2026-09-15 by the P1-fixes task (B.5). R-513 closed the default-password hole with a generated password; a household still has two logins. **What it needs:** a spike on a scratch guest — forwardAuth to the controller session, and what FileBrowser Quantum does with a trusted header. | **READY — rank P3-LOW; owner: CC (spike)** |