docs(buglog): log P0 defects from the 2026-10-10 review (bug-1936..bug-1952)

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

.wolf/bugs/bug-1943.md

@@ -0,0 +1,50 @@
+---
+id: "bug-1943"
+status: "open"
+status_updated: "2026-10-10"
+status_note: "newly logged"
+component: "scheduler"
+severity: "wrong-result"
+timestamp: "2026-10-10T08:14:54Z"
+last_seen: "2026-10-10T08:14:54Z"
+occurrences: 1
+files: ["src/scheduler/src/core_events.c", "src/scheduler/src/scheduler.c"]
+tags: ["scheduler", "sim", "equivalence", "limit"]
+related: []
+---
+
+# bug-1943: xce_scheduler --sim does not load user and host groups, so group-scoped limits differ from live
+
+## Description
+**Observed:** (source reading, `.kiro/reviews/project-gap-review-2026-10-10.md` (P0); to be confirmed by a failing test before the fix)
+On a config push the live scheduler loads user and host groups (`groupmgr_load_configs`, `src/scheduler/src/scheduler.c:1144-1145`); the core's config event used by the simulator applies only resources, resource values and queues (`core_events.c:846-850`).
+
+**Expected:** Live and simulated scheduling apply the same groups (scheduler-driver-equivalence.md).
+**Impact:** Replays of clusters with group-scoped limits make different decisions than the live scheduler.
+**Found by:** review: `.kiro/reviews/project-gap-review-2026-10-10.md` (P0)
+## Environment
+- OS: no /etc/os-release; Docker container; NixOS kernel; kernel Linux 6.18.33 x86_64
+- libc: glibc 2.42-47 (interpreter /nix/store/wb6rhpznjfczwlwx23zmdrrw74bayxw4-glibc-2.42-47/lib/ld-linux-x86-64.so.2)
+- Toolchain: gcc (GCC) 15.2.0, meson 1.9.1
+- Build: asan (xce.build)
+- Code: scheduler-framework @ 94472ee3-dirty
+- Deployment: any (found by source reading; the failing test that confirms it is named in Verification)
+
+## Reproduction
+1. Record a session with a limit scoped to a user group, replay it with `xce_scheduler --sim`.
+2. The limit does not match the group's users in sim.
+- Frequency: deterministic (by code reading; confirmed by the RED test of the fix)
+- Evidence: the code sites quoted in Description; no logs kept.
+## Root cause
+TODO: required for fixed/partial
+
+## Fix
+TODO: required for fixed/partial
+
+## Verification
+- Test: TODO: name + file; RED before the fix, GREEN after
+- Suites: TODO: suite results and build profile
+- Live: TODO: soak/deploy run, or n/a and why
+
+## References
+- Related: none