docs(roadmap): config-history-audit backlog item; profile versioning/audit deferred from application-profile

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.kiro/specs/application-profile/brief.md

@@ -572,7 +572,6 @@ Decided 2026-10-12 (user), so a rename never strands jobs:
 - **Open for requirements**:
   - ~~How resource defaults combine with a job's own resreq~~ — settled
     2026-10-09, owned by `job-config-merge`.
-  - Profile versioning and audit.
   - Raised 2026-10-12, not yet decided:
     - Job labels (`--label key=value`, e.g. the preset name) and a summary
       grouped by label, to compare tuning variants: here,
@@ -585,7 +584,9 @@ Decided 2026-10-12 (user), so a rename never strands jobs:
     limits a job may lower (profile limits are maximums), personal presets
     (client side), `app:override` and inheritance (deferred); execution modes
     split into `job-sandbox-execution`; v1 attributes are the four plus the
-    job starter, others ship with their job features.
+    job starter, others ship with their job features; profile history and
+    change audit deferred to the roadmap (`config-history-audit`): the
+    content hash and the dispatch record already show what each run used.
 - **Out**:
   - The `sandbox` mode and its options, I/O directories, capability
     advertisement, placement by mode and the worker sandbox mechanics

.kiro/steering/roadmap.md

@@ -123,6 +123,7 @@ Direction: `.kiro/steering/resource-model.md`. Decisions, proposals (PR-1 generi
 - [ ] job-resize — NEW 2026-10-10 (from long-running services discovery; not on the services path). Grow/shrink a running parallel job's allocation (LSF resizable jobs, `bresize`) for elastic applications. Brief: `.kiro/specs/job-resize/brief.md`. Dependencies: parjob-placement, host-failure-job-recovery.
 - [ ] project-delegated-membership — NEW 2026-10-10 (from project-config requirements, user decision: future). Project managers edit their project's (and subtree's) members at runtime without an admin config push; needs a durable store that coexists with `xceadmin` config pushes (e.g. a separate delegated member list) and audit. Dependencies: project-config, rbac-persistence.
 - [ ] job-modify — NEW 2026-10-12 (from application-profile discussion, user decision; backlog, no brief yet). Modify a pending job (LSF `bmod`): apiserver action (today `"modify"` is commented out, `controllers/jobs.go:2446`; `JOB_MODIFY` only an enum), controller opcode, WAL fact with snapshot field-completeness, scheduler re-merge, xcecli. First attributes: `--app` (owner with `app:use` on the new profile; admins in bulk, e.g. `--app-from <old>`), `-R`, `-n`, queue; later begin/end time (`job-time-window`), dependencies. Dependencies: application-profile, job-config-merge.
+- [ ] config-history-audit — NEW 2026-10-12 (from application-profile discussion, user decision: needed, roadmap). Keep past cluster-config versions (including `applications.yaml` profiles) with who changed what and when: `xceadmin config history` / `diff`, look up a profile by its content hash (the application-profile hash recorded on dispatch records), audit trail of live upgrades. Per-job display of the values a run used is already covered by the application-profile dispatch record; this adds admin history and audit. Covers the whole cluster config, not only profiles (the controller already tracks `configVersion`/`configChecksum`). Dependencies: application-profile, admin-config-tool.
 - [ ] job-requeue — NEW 2026-10-12 (from application-profile discussion, user decision; backlog, no brief yet). Automatic requeue on given exit values (LSF `REQUEUE_EXIT_VALUES`) and success exit values (`SUCCESS_EXIT_VALUES`), with a requeue loop limit; wires the commented-out `requeue` job action (`apiserver/controllers/jobs.go`) and the REST `requeue_error_values` / `rerunable` options that are silently dropped today (bug-1970). Adds the matching application-profile attributes (a profile attribute ships with its job feature). Later, same principle: checkpoint settings and warning-before-kill each get their own spec. Dependencies: application-profile.
 - [ ] xcecli-presets — NEW 2026-10-12 (from application-profile discussion, user decisions). Client-side presets replace convenience defaults in profiles: a preset is a set of job options (`--app`, `--queue`, `-R`, `-n`, env, limits) expanded by the client, a flag replacing the preset's value for that option; one file per preset (`~/.config/xce/presets/<ns>/<name>.yaml`, same layout in the apiserver's presets dir), env capture by name (`pass:`; `XCE_*` and secret-looking names excluded); the apiserver only shares admin-deployed presets read-only (`GET /xce/v1/presets[/{ns}/{name}]`, files in `<TopDir>/config/presets/` or `presets.dir`, re-read on change; not in ClusterConfig), and `preset pull` copies one locally so server-side removal never affects users; on a name collision pull refuses unless it is an update of the same server preset (`--as` / `--force` with `.bak`); submit uses local presets only (`preset diff`, `pull --force` user-initiated); user-to-user sharing by `preset export`/`import`; presets carry no privilege and are not a configuration level; optional preset-name job label; the portal does the same expansion. Brief: `.kiro/specs/xcecli-presets/brief.md`. Dependencies: application-profile.
 - [ ] profile-usage-insight — NEW 2026-10-12 (from application-profile discussion, backlog; no brief yet). Per-profile report over recent jobs comparing the profile's defaults with actual use (requested vs. peak memory, CPU efficiency, OOM kills, pend time, runtime by variant) and suggesting better values for site presets (or a profile essential), e.g. "preset openfoam rusage mem 4000, p95 peak 1600 → suggest 2000" (Kubernetes VPA recommender precedent). **Advisory only** (user decision): the admin applies changes to site presets or `applications.yaml`; nothing tunes itself. Optional user hint ("used 1.4G of 4G requested"). Dependencies: application-profile, run usage in job records.