benches/sim_bench.rs (harness=false, zero deps): fixed-iteration ns/op timing for
hpmcu_tick, cru_poll, modbus_read_holding, rga_improcess, membus_poke_peek. Human
timings to stdout, one JSON trend line per bench to stderr for CI capture. New CI
`bench` job smoke-runs them. Regression-vs-history gating is future work.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
Bring relays.c into warden-sdk/drivers/ behind a relay_io seam (ADR-0005): the
sysfs plumbing is an injectable backend, the gpio root is $WARDEN_GPIO_ROOT-
overridable. Host harness (drivers/relays/test/) reaches 100% MC/DC (40/40
conditions, 100% lines) by combining fake-io unit tests (logic branches incl.
export->node-appears) with real-sysfs integration tests over a scratch tree
(backend fopen/stat branches). CI `mcdc` job enforces 100% across drivers/*/test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
test job runs cargo test across sim + config-lint and cargo-llvm-cov line coverage
on the sim crate; badges job renders loc/tests/coverage shields on push to bringup
([skip ci] + paths-ignore loop guard). mcdc/bench/kernel-build jobs land with
P2/P4/P1. README carries the CI + badge row.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
