Brummel
e94ee4253a
Make the iteration-1 sweep primitive visible without writing Rust: an
`aura sweep` subcommand runs the built-in sample over a small built-in grid
(fast in {2,3}, slow in {4,5}, scale in {0.5} = 4 points) and prints one
canonical JSON line per point, in enumeration (odometer) order.
- sample_blueprint_with_sinks() -> (Composite, Receiver, Receiver) now holds
the sample topology and returns the two Recorder receivers a per-point run
drains; build_sample() (the `aura graph` entry, which never runs the graph)
is re-expressed as `sample_blueprint_with_sinks().0`, so there is one
topology definition and the graph render is unchanged (its golden stays
green).
- sweep_report() declares the grid over the sample's param_space and calls the
engine sweep() with a per-point closure (build fresh -> bootstrap_with_params
-> run -> drain both sinks via f64_field -> summarize). Pure + deterministic
(C1): the same build yields a bit-identical report.
- sweep_point_to_json + json_string + scalar_token hand-roll the JSON (C14, no
serde — the engine's json_str is private), mirroring RunReport::to_json's
token rules: a whole-valued f64 renders without a fractional part (12.0->12),
an I64 as an integer token, an F64 as the shortest round-trippable form.
- The main() dispatch grows a ["sweep"] arm; USAGE advertises it; the strict
trailing-token contract is inherited (aura sweep extra -> exit 2).
Tested: sweep_point_to_json byte-pinned on a hand-built point (the f64/i64
token rules); sweep_report pins 4 lines with per-line params byte-exact in
odometer order + determinism; process goldens in tests/cli_run.rs pin the
stdout line-count/exit-zero and the strict-arg exit-2 path. Full
cargo test --workspace green (graph golden, engine iter-1 sweep tests, run/macd
all unaffected); clippy --workspace --all-targets -- -D warnings clean.
refs #32