Process gap: a WIT interface change must update every Guest impl of that interface (a dissolve-path build break shipped silently in #202)

[avrabe]

PR #202 added resolution: func() -> u64 to the time interface in benches/gust/drivers/wit-os/gust-os.wit but did not update time-provider's impl Guest for P — an E0046 that broke cargo build for the time-provider crate and both the tl/ts-node dissolves. It shipped green because the PR's demonstrator drives the executor natively, not the dissolve path, so no gate exercised the provider build.

Ask: when a WIT interface changes, mechanically update (or fail CI on) every impl Guest of the touched interface. Options: a small check that greps each provider crate builds after a wit-os change, or wire the provider-dissolve probes (gust_os_tl_probe/gust_os_ts_probe) into a gate so the dissolve path is exercised on every PR. Fixed the immediate break in the syscall-seam PR.

[avrabe]

Closed by #220 — the gust:os provider drift gate now builds all 8 provider/app crates for wasm32 on push/PR, so a WIT-method-without-Guest-impl (the #202 E0046 class) fails CI red. Red-tested (injected drift-probe → E0046) and green on main.