CHANGELOG: the memory-kill check (unreleased, to ship as v0.150.0 after the night read-back)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS
2026-10-06 19:36:09 +02:00
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+## Unreleased (2026-10-06 night) — the Docker step proves the engine reports a memory kill (`09` §3 decision 157, R-528)
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+To be released as v0.150.0 with its config bundle AFTER the 2026-10-07 night read-back (the night of 2026-10-06 runs v0.149.0 on purpose).
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+- `configs/felhom-os-apply`: after a docker-layer APPLY (after `health_after`) the wrapper runs `oom_check()`: a throwaway container from the image the running controller uses (`--pull never`, `--network none`, no volume, label `felhom.oomcheck=1`, 64 MB cap) asks for one 200 MB block; „pass" only when `OOMKilled=true` AND the `oom` event; it waits 2 s and reads the events window to the guest's epoch + 1 (measured: a window closed in the same second missed the event); the container is always removed. Reported as `oom_check`; it never changes the step's outcome or health. A wrapper-only mode `oom-check` runs the check alone (no apt, no engine change), by hand as root.
+- `internal/osupdate`: `WrapperReport` and `Report` carry `oom_check` verbatim, on the normal pass and on the kept-copy path (R-868).
+- `configs/test_felhom_os_apply.py`: its `unittest.main()` sat in the middle of the file, so 11 tests (UnsentReport, SaveReportOnDisk, AgentDiesMidPass, CrashLeftTheJournal) never ran — moved to the end; all pass.
+- Tests: the OOMCheck class (pass, OOMKilled=false, no event, unreadable image, removal on an inspect error, not on other layers or in health mode, the events window after the settle wait, mode oom-check alone and its refusals); TestDocker_OOMCheckReachesTheHubUnchanged, TestR868_KeptCopyCarriesTheOOMCheck. 12 red-proofs in `felhom.eu/documentation/audits/readback-2026-10-07/F/`.
+
 ## Unreleased (2026-10-06 evening) — the shared rule file (`09` §3 decision 152); no code change

 - `.claude/rules/unprompted-work.md` added, byte-identical to the copies in felhom.eu, felhom-controller, app-catalog-felhom.eu and the workspace root (checked with `diff` against the controller's copy and one md5 across all five). Its copies line names five copies.