CHANGELOG: unreleased — R-444 weekly guest disk trim, R-99 runbook pointer

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

CHANGELOG.md

@@ -1,5 +1,10 @@
 ## unreleased
 
+- R-444 (`09` §3 decision 139): weekly guest disk trim. New sudoers alias FELHOM_FSTRIM with ONE exact rule `/usr/sbin/pct ^fstrim [0-9]+$` (rides the signed config bundle; decoys pinned by TestSudoersFstrimRuleIsExact) and capability guest-fstrim (non-critical). New internal/fstrim job: each owned RUNNING guest gets `pct fstrim <vmid>` once a week - due Wednesday from 10:00 host-local, starts only 10:00-20:59 (never the 01:00-06:59 night), holds the one-heavy-op gate so it never runs beside a backup or restore-test (busy -> deferred to the next hourly tick; a box that was off catches up at its next daytime hour); a failed trim WARNs and is retried at most 3 times that week; bytes parsed from `pct fstrim`'s "(N bytes) trimmed" lines; positive log `fstrim: guest N trimmed X GiB in Ys`; last result per guest persisted in <state_dir>/guest-disk-trim.json and reported as the new omitempty host-report stanza `guest_disk_trim`. Opt-out: agent.json "disk_trim": {"disable": true}.
+- R-99 (`09` §3 decision 140): the agent's WARN for a PBS archive below the 1 MiB plausibility floor now ends with the pointer to the sanctioned cleanup (`documentation/runbooks/pbs-phantom-cleanup.md`); detection only — nothing is deleted automatically. Dir-storage archives keep the old text.
+
+## unreleased
+
 - R-426: scripts/test_gate_decoys.py (new) — the published gate judged against a fake Gitea (127.0.0.1, via GITEA_BASE; never the real registry): 11 cases; COVERS published — `felhom-agent/published` leaves the decoy-coverage EXEMPT list.
 - R-426: release-complete gate — 10 decoy cases (scratch clone + scratch bare origin + fake Gitea); COVERS release-complete — `felhom-agent/release-complete` leaves the decoy-coverage EXEMPT list.
 - R-426: the shared reuse-refs/instructions/observations gates get agent-side decoys (9 cases on a scratch clone of this repo); COVERS reuse-refs, instructions, observations — three `felhom-agent/*` entries leave the decoy-coverage EXEMPT list.