[CI] (.github/workflows, docs/ci, scripts/ci, scripts/data): tally the split baseline, do not rerun it

- 'Split lanes' keeps its first ctest's exit code beside split-baseline.xml; the controls step tallies that JUnit (DirectGLES.Split. entries) with the same refusals instead of re-running 802 entries, on every branch
- the rerun stays as the fallback when the lane step never ran, the case where the baseline was the only run of those entries
- smoke cases: reuse, fallback, a red exit code under a green JUnit, and a JUnit with no DirectGLES.Split. entry
- skip census: retire lane junit-integration-split/isplit (nothing borrows it; split-baseline covers the names)

docs/ci/ci-cleanup-log.md

@@ -40,6 +40,7 @@ them wrong.
 | 2026-10-17 | `Negative control (dropped draws)` | Test / `retrace-split` (every leg) | a rerun of every leg with `MOBILEGL_IPC_E2_DROP_DRAW`, a production hook; its knob's own early return produced the DirectVulkan `Fatal{RoleViolation, "gPipeInputs"}` reds of 10-02 to 10-05 | in-test on the OpenRA legs (both backends, inproc and spawn): `MGTRACE_WIRE_EVIDENCE` turns on the library's counters and `run_trace_case.cmake` requires DrawVbo records on the wire and draws on the server role (758 each locally); canned reds in `test_run_trace_case.py` |
 | 2026-10-17 | `scripts/ci/retrace_transport_control.sh`, `scripts/ci/retrace_drop_draw_control.sh`, the retrace and drop-draw halves of `control_smoke_test.sh` and `stub_ctest.sh`, and `scripts/ci/redcheck_control_smoke_test.sh` | Test / pipe-gates (R-16) | the bodies of the two controls above and their smoke cases; the redcheck script had no caller and mutated the deleted scripts | `test_run_trace_case.py` |
 | 2026-10-17 | unit `RemoteEmitTable.TheE2DropSwitchStartsDisarmed`, and the `MOBILEGL_IPC_E2_DROP_DRAW` / `MOBILEGL_IPC_E2_DROP_CLEAR` knobs with their per-draw and per-clear branches in the shipped emitter (`VerbPort.cpp`) | Test / unit (split); product code | the knobs existed only for the retired dropped-draws control (the clear knob was set by nothing); the unit case only toggled the clear setter | the wire-volume assertion in `run_trace_case.cmake` on the OpenRA split legs (DrawVbo records on the wire, draws on the server role) |
+| 2026-10-17 | the 802-entry `DirectGLES.Split.` baseline rerun inside `split_negative_controls.sh` (skip-census lane `junit-integration-split/isplit`) | Test / `integration-split`, every branch | a rerun of entries 'Split lanes' had run minutes earlier on the same runner and library (~2.5 min); its logs also overwrote the lane's in the uploaded artifact | the script tallies the lane step's `split-baseline.xml` and its exit code (`split-baseline.rc`) with the same three refusals; it still reruns when that step never ran (the 10-12/10-13 catches); the `split-baseline` census lane covers the names; smoke cases for the reuse, the fallback, a red exit code under a green JUnit and an empty arm |
 
 ## Kept after investigation