hub v0.46.0: observability pass — per-box log pulls, bundle custody, 72h TTL + secret gate

log_bundle_requests + log_bundles store (gzip, newest-3, 72h TTL purged on the
60s sweep); SaveLogBundle secret gate fail-closed (blocked flag row, no payload;
REDACTED/checksums pass). Report ACK gains controller_log_requested + ingests
controller_log_tail; heartbeat envelope gains log_tail_requested + ingests
log_tail (consume-once on arrival; pre-0.83 agents stay visibly pending). Host
detail Diagnostics section: request buttons (controller/agent), state rows with
honest latency hints, View/Download endpoint. Red-proofs: gate disabled and
clear-on-arrival removed both FAIL their tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6

REUSE.md

@@ -92,6 +92,7 @@
 | `fileSHA256` | hub/internal/assets/assets.go (~L244) | `(path) (string, error)` | Streaming sha256 of a file | — |
 | `(*Store).SaveEvent` | hub/internal/store/store.go (~L1003) | `(...) (int64, error)` | Persisting ANY event (controller or hub source) | Pair with dispatcher/`onEvent` — saving alone never notifies. |
 | `(*Store).RequestLogTail` / `GetPendingLogTailRequests` / `SaveAppLogTail` | hub/internal/store/logtail.go | pending-intent + consume-once fulfillment | THE ACK-flag pull pattern for hub→box requests (copy for any new one) | SaveAppLogTail clears the request in the SAME tx (consume-once) + prunes to last 2 per (customer,app); the hub NEVER connects into a box |
+| `(*Store).RequestLogBundle` / `PendingLogBundleRequest` / `SaveLogBundle` / `PurgeExpiredLogBundles` | hub/internal/store/logbundle.go | component (controller/agent) log pulls — the v0.46.0 sibling of logtail.go | box-component debug-ring pulls; gzip custody, newest-3, 72 h TTL on the 60 s sweep | scope = customer_id (controller/report ACK) vs host_id (agent/heartbeat envelope); `SaveLogBundle` runs the SECRET GATE fail-closed (blocked flag row, no payload) and clears the request in the same tx; `[REDACTED]`/checksums pass by design |
 | `upsertAppIssue` dismissal/context semantics | hub/internal/store/telemetry.go | ON CONFLICT CASE guards | Issue dismissal + first-capture-wins context | Un-dismiss ONLY on `excluded.last_seen > dismissed_at`; context adopted only while stored one is empty — do not "simplify" either CASE (red-proofed) |
 | `store.GuestID` | hub/internal/store/store.go (~L1268) | `(hostID string, vmid int) string` | Canonical guest primary key | Never hand-concatenate host+vmid. |
 | `scheduleDaily` | hub/cmd/hub/main.go (~L449) | `(ctx, name, "HH:MM", fn, logger)` | Daily jobs in Europe/Budapest (prune etc.) | Blocking — run as goroutine. `parseHM` returns 0,0 (midnight) on bad input. |