Done. The repository is a minimal Foundry project whose deliverable is the single file test/Smoke.t.sol.

What landed (61 files, 57 of them the vendored dependency):

README.md            what it is, how to run it, what each test proves
foundry.toml         test/lib paths, 256 fuzz runs, no pinned solc
test/Smoke.t.sol     the subject + the smoke test
lib/forge-std/       forge-std v1.9.7, ordinary files
.gitignore           out/, cache/

test/Smoke.t.sol:1 holds Beacon (a counter with an owner, an event and a custom error — the smallest thing that carries the checks) and SmokeTest, five tests each naming one stage of the pipeline: deployment with constructor args, call → storage → decoded return value, log decoding (plus warp/prank cheatcodes), custom-error revert decoding, and a fuzz test.

Vendoring: installed with forge install --no-git, so there is no submodule and no .gitmodules — git ls-tree -r HEAD has no mode-160000 entries. I deleted lib/forge-std/.github/ so the diff touches no .github path; nothing else in the dependency was altered.

Verification — forge build and forge test pass locally (5/5), forge fmt --check is clean, and I re-ran it the way the grader will: cloned the commit to a temp dir, deleted its .git, and ran FOUNDRY_OFFLINE=true forge build && forge test there. Compiled with solc 0.8.30 and 5/5 passed with no network.

One thing outside my control: nothing committable supplies the solc binary itself, so the verifying machine must already have a compiler in its svm cache. That's why foundry.toml pins no solc_version and the file uses pragma ^0.8.20 — forge prefers an already-installed matching version, so the widest range gives the best odds offline. For the same reason the expected log is emitted from a mirrored event declaration in the test rather than as emit Beacon.Pinged(...), which would have required solc ≥ 0.8.21.