Add tools/site_audit; retract the p1 claim against C; show LANE BAL

site_audit answers "is this site winnable?" before it ships — the check that
was missing when SPRINT6 shipped a yard whose bed-covering quad pulled 7.4 kN
against a shop that holds 6.5. It enumerates in-band quads, flies the real
storm headless, maps each corner to the cheapest tier that holds it, and
verdicts against the $80 budget. On backyard_01 it independently reproduces
THE LINE: p1,p2,p3,p4 at $65 + $15 spare, matching balance.test to within 2%.

It also caught three of my own bugs, which is the point of building it:

  · it settled on STORM wind frozen at t=0 — the exact anti-pattern
    balance.test documents at 1.94 kN vs 0.40 kN. Now settles on the calm
    day on a running clock, the way main.js does.
  · peakLoad is peak-since-ATTACH, so the settle transient was being
    reported as a storm peak. sail.js gains resetPeaks().
  · its p4 was typed from world.js's postSpecs, missing that posts are RAKED
    8° away from centre — 0.56 m off. The audit now re-derives all four posts
    from live world.js on every run and hard-fails on drift.

That last check is deliberately narrow. Node CANNOT dress: dress() needs
GLTFLoader (bare 'three') and fetch()es .glb over file://. createWorld() still
SUCCEEDS in node — it just returns the GRAYBOX yard, house at x=±5, no branch
anchors. So a headless tool that "reads world.js for the real yard" gets the
fictional x=±5 house that cost two sprints. Reading live code is not reading
truth. Verified in-browser: the dump matches the dressed yard on all 12
anchors. Posts are the only thing dress() never touches, so they're the only
thing worth cross-checking — and that check is what caught p4.

C IS RIGHT ABOUT p1 AND I WAS WRONG, for the third time. My comment claimed
C's 1.08 kN didn't reproduce, that p1 peaked at 1.27 and the line won on TIME
rather than headroom. Re-measured on the dressed yard, same flight:

    shade cloth  p1 0.98 kN  0/4 lost      membrane  p1 1.23 kN  p1 LETS GO

p1 never touches its 1.2 kN rating on cloth — 18% of real headroom. Where 1.27
came from: a loadout where a corner BROKE and dumped its share onto p1 (the
same quad with hardware the budget can't buy reads 2.48). Any p1 number
gathered without checking `lost` measures a cascade, not a fabric.

So the fabric is the decision, not a skin: 0.98 vs 1.23 against a 1.20 rating
is the difference between the $5 carabiner holding the wild night and failing
it. New assert `fabric decides p1` locks that in, so nobody has to trust the
paragraph.

selftest.html rendered ['A'..'E'] while importing BAL too, so the balance
suite ran, counted toward the summary, and had every row silently dropped —
including, had one gone red, the row saying which assert failed. The merge
gate was invisible in its own report. My bug: I added the import, not the
renderer. Now derived from the report.

Selftest: 276 passed, 0 failed, 0 skipped (LANE BAL now visible).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
m3ultra 2026-07-17 14:52:31 +10:00
parent e576f5cb67
commit e4436248b0
4 changed files with 325 additions and 15 deletions

252
tools/site_audit/audit.mjs Normal file
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@ -0,0 +1,252 @@
#!/usr/bin/env node
/**
* site_audit is this site winnable, BEFORE it ships? [Lane B, SPRINT9]
*
* node tools/site_audit/audit.mjs # the shipped yard
* node tools/site_audit/audit.mjs web/world/data/sites/site_02.json
* node tools/site_audit/audit.mjs --storm storm_03_southerly
*
* WHY THIS EXISTS, in one number: p1 = 7.4 kN.
*
* In SPRINT6 the yard shipped with a bed-covering quad whose corner pulled
* 7.4 kN against a shop whose best hardware holds 6.5. No loadout could hold it
* at any price, so the wild night was unwinnable and it took four lanes two
* sprints to find out, because nothing checked the site's GEOMETRY against the
* shop's PRICE LIST at authoring time. Geometry decides winnability. A site is a
* balance decision disguised as art, and it should be audited the minute it's
* drawn, not the sprint after it ships.
*
* What it does NOT do: score the garden. Winnability is decided before any of
* that by whether a quad exists that (a) covers the bed and (b) has peak
* corner loads the budget can hold. The garden drain only decides how BADLY you
* lose a site that was already unwinnable. That's also why this runs in node:
* no skyfx, no document, no browser, ~20 s per site.
*/
import { readFile } from 'node:fs/promises';
import { SailRig, orderRing } from '../../web/world/js/sail.js';
import { createWind } from '../../web/world/js/weather.js';
import { HARDWARE, START_BUDGET, FIXED_DT } from '../../web/world/js/contracts.js';
const [CARABINER, SHACKLE, RATED] = HARDWARE;
const SPARE_COST = 15;
const BAND = { lo: 18, hi: 45 }; // A's a.test rigging band
const MIN_COVER = 0.25; // A's "shades the bed" bar
const SETTLE_S = 12; // D's settle — a player plays through prep
const CALM_STORM = 'storm_01_gentle'; // main.js's CALM_STORM: what wind.use() hands the rig in prep
const PRE_GUST_S = 3; // hold the settle inside gentle's pre-gust window (balance.test)
const argv = process.argv.slice(2);
const stormArg = (() => { const i = argv.indexOf('--storm'); return i >= 0 ? argv[i + 1] : 'storm_02_wildnight'; })();
const sitePath = argv.find((a) => !a.startsWith('--') && a !== stormArg) || null;
/**
* THE SHIPPED YARD, headless a dump of the DRESSED yard, and it has to be.
*
* Node cannot dress: dress() needs GLTFLoader (a bare 'three' specifier) and
* fetch()es .glb over file://, neither of which works outside a browser. And
* that matters far more than it sounds, because createWorld() still SUCCEEDS in
* node it just hands back the GRAYBOX yard:
*
* graybox (node) dressed (browser, what the player plays)
* h1 x = -5.00 h1 x = -3.00 dress() adopts E's fascia
* t1 (-9.00, 2.00) t1 (-9.96, 0.54) dress() adopts branch_anchor_01
* t1b/t1c/t2b: ABSENT t1b/t1c/t2b: exist dress() adds them
*
* A headless tool that "reads world.js for the real yard" therefore gets the
* house at x=±5 the exact fictional yard that made the SPRINT6 harness report
* the wild night unwinnable, memorialised at the top of balance.test.js. Reading
* live code is not the same as reading truth. The dump below is the real yard;
* live world.js, in node, is not.
*
* So the deal is: dumped values for what only dress() knows, and a HARD
* CROSS-CHECK against live world.js for everything dress() never touches.
* dress() only adopts h1..h3 / t1 / t2 and adds the branch anchors the four
* posts are pure world.js, so they are re-verified on every run (verifyPosts).
* That check exists because the first draft of this file typed p4 straight from
* world.js's `postSpecs` and missed that posts are RAKED 8° away from centre:
* it sat 0.56 m off, and the audit dutifully reported on a post that isn't there.
*
* This whole apparatus is why SPRINT9 gate 2 (sites as DATA) is worth it. The
* moment `data/sites/backyard_01.json` exists, pass it and none of this is used.
*/
const BACKYARD_01 = {
name: 'backyard_01 (dressed-yard dump — posts verified live, see comment)',
dumped: true,
bed: { x: 1, z: 2, w: 6, d: 4 },
anchors: [
// dress()-only: adopted from E's GLBs. Unverifiable headless.
['h1', 'house', -3.00, 2.48, -9.95], ['h2', 'house', 0.00, 2.48, -9.95], ['h3', 'house', 3.00, 2.48, -9.95],
['t1', 'tree', -9.96, 3.45, 0.54], ['t2', 'tree', 7.83, 2.93, -0.85],
['t1b', 'tree', -9.94, 3.96, 2.78], ['t1c', 'tree', -10.38, 5.05, 2.98], ['t2b', 'tree', 8.14, 3.70, -0.96],
// pure world.js — cross-checked against live code on every run.
['p1', 'post', -4.85, 3.95, 5.93], ['p2', 'post', 4.31, 3.96, 6.46], ['p3', 'post', 0.00, 3.95, 7.56],
['p4', 'post', -3.72, 4.00, -1.40],
].map(([id, type, x, y, z]) => ({ id, type, pos: { x, y, z } })),
};
/** Anchors dress() never touches — so live world.js IS authoritative for these. */
const VERIFIABLE = new Set(['p1', 'p2', 'p3', 'p4']);
/**
* Re-derive the posts from live world.js and fail loudly if the dump drifted.
* The one guard-rail a hand-typed yard can actually have.
*/
async function verifyPosts(site) {
const THREE = await import('../../web/world/vendor/three.module.js');
const { createWorld } = await import('../../web/world/js/world.js');
const stub = {
sample: (p, t, o) => (o || new THREE.Vector3()).set(0, 0, 4),
speedAt: () => 4, rainAt: () => 0, rainMmPerHour: () => 0,
gustTelegraph: () => null, setSheltersFromTrees() {}, eventsBetween: () => [],
};
const world = createWorld(new THREE.Scene(), { wind: stub }); // graybox: fine, posts are graybox
const live = new Map(world.anchors.map((a) => [a.id, a.pos]));
const drift = [];
for (const a of site.anchors) {
if (!VERIFIABLE.has(a.id)) continue;
const l = live.get(a.id);
if (!l) { drift.push(`${a.id}: gone from world.js entirely`); continue; }
const d = Math.hypot(a.pos.x - l.x, a.pos.y - l.y, a.pos.z - l.z);
if (d > 0.01) drift.push(`${a.id}: dump (${a.pos.x.toFixed(2)}, ${a.pos.y.toFixed(2)}, ${a.pos.z.toFixed(2)}) ` +
`vs world.js (${l.x.toFixed(2)}, ${l.y.toFixed(2)}, ${l.z.toFixed(2)}) — ${d.toFixed(2)} m out`);
}
const missing = [...live.keys()].filter((id) => !site.anchors.some((a) => a.id === id));
if (missing.length) drift.push(`world.js has anchors this dump has never heard of: ${missing.join(', ')}`);
return drift;
}
async function loadSite(path) {
if (!path) return BACKYARD_01;
const j = JSON.parse(await readFile(path, 'utf8'));
// site-as-data shape (Lane A, gate 2). Tolerant: only anchors + bed are needed.
const anchors = (j.anchors || []).map((a) => ({
id: a.id, type: a.type || 'post',
pos: { x: a.pos?.x ?? a.x, y: a.pos?.y ?? a.y, z: a.pos?.z ?? a.z },
}));
return { name: j.name || path, bed: j.gardenBed || j.bed, anchors };
}
const withSway = (list) => list.map((a) => ({ ...a, sway: () => a.pos }));
/** Ground-plane area, shoelace over the ring — the same formula a.test uses. */
function areaOf(q) {
const r = orderRing(q);
let a = 0;
for (let i = 0, j = r.length - 1; i < r.length; j = i++) a += (r[j].pos.x + r[i].pos.x) * (r[j].pos.z - r[i].pos.z);
return Math.abs(a / 2);
}
/** Cheapest hardware that holds a corner at `peak` kN, or null if the shop can't. */
const tierFor = (peakN) => HARDWARE.find((h) => h.rating >= peakN) || null;
async function main() {
const site = await loadSite(sitePath);
const anchors = withSway(site.anchors);
const def = JSON.parse(await readFile(new URL(`../../web/world/data/storms/${stormArg}.json`, import.meta.url), 'utf8'));
console.log(`\nsite_audit — ${site.name}`);
if (site.dumped) {
const drift = await verifyPosts(site);
if (drift.length) {
console.log('\n✗ FAIL — the built-in yard dump no longer matches world.js:\n');
for (const d of drift) console.log(` ${d}`);
console.log('\n Every number this tool prints would be about a yard that does not exist.');
console.log(' Fix the dump (posts are RAKED 8° — use the anchor pos, not postSpecs), or pass a site JSON.\n');
process.exit(1);
}
console.log(` posts verified against live world.js ✓ ` +
`dress()-only anchors trusted from the dump: h1,h2,h3,t1,t2,t1b,t1c,t2b`);
console.log(` (node cannot dress — live world.js here is the GRAYBOX yard, house at x=±5. See comment.)`);
}
console.log(`storm: ${stormArg} (${def.duration}s, downdraftOfTotal ${def.gusts?.downdraftOfTotal ?? '—'})`);
console.log(`shop: $${START_BUDGET} · ${HARDWARE.map((h) => `${h.name} $${h.cost}/${(h.rating / 1000).toFixed(1)}kN`).join(' · ')}\n`);
// 1. every quad, in the rigging band, that shades the bed
const cands = [];
const A = anchors;
for (let a = 0; a < A.length; a++) for (let b = a + 1; b < A.length; b++)
for (let c = b + 1; c < A.length; c++) for (let d = c + 1; d < A.length; d++) {
const q = [A[a], A[b], A[c], A[d]];
const area = areaOf(q);
if (area < BAND.lo || area > BAND.hi) continue;
let rig;
try {
rig = new SailRig({ anchors, gridN: 10 }).attach(q.map((x) => x.id), Array(4).fill(HARDWARE[2]), 1.0);
} catch { continue; } // degenerate ring
const cover = rig.coverageOver(site.bed, { x: 0, y: 1, z: 0 });
if (cover >= MIN_COVER) cands.push({ ids: q.map((x) => x.id), area, cover });
}
if (!cands.length) {
console.log(`✗ FAIL — no quad in the ${BAND.lo}-${BAND.hi} m² band shades the bed at all.`);
console.log(` The site cannot be rigged. It needs an anchor near the bed before it ships.\n`);
process.exit(1);
}
// 2. peak corner loads, settled, on the real storm. This is the p1=7.4 kN check.
//
// This drives the wind the way main.js does, and every clause below is here
// because the first draft skipped it and MIS-MEASURED:
//
// · createWind (not the raw field) + setSheltersFromTrees — trees knock a
// hole downwind, and a quad hanging off tree anchors sits in it. main.js
// does this at boot.
// · the settle runs on the CALM day on a RUNNING clock, because that is what
// wind.use() hands the rig during prep. The first draft settled on STORM
// wind frozen at t=0 — the exact anti-pattern balance.test documents at
// 1.94 kN vs 0.40 kN of standing load at storm entry.
// · resetPeaks() at storm entry, because peakLoad is peak-since-ATTACH and
// was quietly folding the attach transient + settle into the storm peak.
//
// A tool that vets sites is worthless if it doesn't fly the storm the game
// flies. It reported p1 at 1.1 kN with all three of those wrong.
const trees = site.anchors.filter((a) => a.type === 'tree');
const wind = createWind(def);
wind.setSheltersFromTrees(trees);
const calmDef = JSON.parse(await readFile(new URL(`../../web/world/data/storms/${CALM_STORM}.json`, import.meta.url), 'utf8'));
const calmWind = createWind(calmDef);
calmWind.setSheltersFromTrees(trees);
const rows = [];
for (const cnd of cands) {
// shade cloth: the fabric a competent player takes into a windy night
const rig = new SailRig({ anchors, gridN: 10, porosity: 0.30 })
.attach(cnd.ids, Array(4).fill({ name: 'audit', cost: 0, rating: Infinity }), 1.0);
for (let i = 0, n = Math.round(SETTLE_S / FIXED_DT); i < n; i++) {
rig.step(FIXED_DT, calmWind, (i * FIXED_DT) % PRE_GUST_S);
}
rig.resetPeaks(); // ← the storm starts HERE
for (let i = 0; i < def.duration * 60; i++) rig.step(FIXED_DT, wind, i * FIXED_DT);
const corners = rig.corners.map((c) => ({ id: c.anchorId, peak: c.peakLoad }));
const tiers = corners.map((c) => ({ ...c, tier: tierFor(c.peak) }));
const unholdable = tiers.filter((c) => !c.tier);
const hw = tiers.reduce((s, c) => s + (c.tier ? c.tier.cost : 0), 0);
rows.push({ ...cnd, tiers, unholdable, hw, total: hw + SPARE_COST, affordable: !unholdable.length && hw <= START_BUDGET });
}
rows.sort((a, b) => (a.affordable === b.affordable ? a.hw - b.hw : a.affordable ? -1 : 1));
console.log(`${cands.length} quad(s) in band shading the bed:\n`);
for (const r of rows) {
const cs = r.tiers.map((c) => `${c.id} ${(c.peak / 1000).toFixed(1)}kN→${c.tier ? '$' + c.tier.cost : 'NONE'}`).join(' ');
const mark = r.unholdable.length ? '✗ unholdable' : r.hw <= START_BUDGET ? `$${r.hw}` : `$${r.hw} > $${START_BUDGET}`;
console.log(` ${r.ids.join(',').padEnd(18)} ${r.area.toFixed(0).padStart(3)} m² cover ${(r.cover * 100).toFixed(0).padStart(3)}% ${mark.padEnd(14)} ${cs}`);
}
const winners = rows.filter((r) => r.affordable);
console.log('');
if (!winners.length) {
const best = rows[0];
console.log(`✗ FAIL — no affordable holding line. Cheapest is ${best.ids.join(',')} at $${best.hw} on a $${START_BUDGET} budget` +
(best.unholdable.length ? `, and ${best.unholdable.map((c) => c.id).join('/')} exceeds the shop's ${(HARDWARE.at(-1).rating / 1000).toFixed(1)} kN ceiling at any price.` : '.'));
console.log(` This is the SPRINT6 p1=7.4 kN failure. Move an anchor, or the site ships unwinnable.\n`);
process.exit(1);
}
const w = winners[0];
console.log(`✓ PASS — ${winners.length} affordable line(s). Best: ${w.ids.join(',')}$${w.hw} hardware` +
`${w.total <= START_BUDGET ? ` (+$${SPARE_COST} spare = $${w.total}, still inside budget)` : ` — no room for a $${SPARE_COST} spare`}` +
`, ${w.area.toFixed(0)} m², ${(w.cover * 100).toFixed(0)}% of the bed.\n`);
}
main().catch((e) => { console.error('site_audit failed:', e.message); process.exit(2); });

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@ -823,6 +823,19 @@ export class SailRig {
}
}
/**
* Zero the peak-load watermarks to the CURRENT load. `peakLoad` is otherwise
* peak-since-attach, which silently folds the attach transient and any settle
* into whatever you meant to measure call this where measurement starts.
*
* Written for tools/site_audit, which was reporting a 12 s settle's transient
* as a storm peak until it called this. `load` itself is untouched.
*/
resetPeaks() {
for (const c of this.corners) c.peakLoad = c.load;
return this;
}
/** Ported from the prototype: 0.4 s sustained over the rating and it lets go. */
_checkFailure(dt) {
for (let k = 0; k < 4; k++) {

View File

@ -93,23 +93,32 @@ async function buildYard() {
// cheapest thing that will hold p1. That last corner is the whole $10 gap
// between a $90 rig and an $80 budget.
//
// MEASURED HERE, and it does not match C's table — flagged in THREADS. C
// reported p1 dropping to 1.08 kN with shade cloth + downdraft 0.40, i.e. under
// a carabiner's 1.2 kN rating. This harness gets p1 peaking at:
// C IS RIGHT ABOUT p1, AND I WAS WRONG. An earlier revision of this comment
// claimed C's table didn't reproduce — that p1 peaked at 1.27 kN with cloth at
// dd 0.40, never crossing under a carabiner's 1.2 kN rating, and that the line
// therefore won on TIME (a 6% overshoot too brief to trip OVERLOAD_SECS) rather
// than on headroom. That was wrong, and the retraction is the useful part:
//
// dd 0.45 membrane 1.45 kN dd 0.45 cloth 1.42 kN
// dd 0.40 membrane 1.41 kN dd 0.40 cloth 1.27 kN
// re-measured on the dressed yard, this exact flight, one variable — 2026-07-17
// shade cloth p1 0.98 kN p2 2.77 p3 1.62 p4 3.65 0/4 lost
// membrane p1 1.23 kN p2 3.23 p3 2.55 p4 4.31 p1 LETS GO
//
// so p1 never crosses UNDER 1.2 here. The line still wins on a $5 carabiner —
// verified, hp 63 with 0/4 lost — but for a different reason than C's: a 1.27 kN
// peak against a 1.2 kN rating is a 6% overshoot, and breaking needs 0.4 s
// SUSTAINED over rating (sail.js OVERLOAD_SECS). The carabiner is overloaded in
// flashes and never long enough to let go.
// p1 peaks at 0.98 kN against a 1.2 kN rating: 18% of real HEADROOM, and the
// carabiner is never once over its rating. C reported 1.08. That is the same
// number to within measurement noise, and the same conclusion.
//
// That distinction matters for whoever tunes next: the line's margin is TIME,
// not headroom. It is thinner than C's numbers imply, and anything that widens
// storm_02's gust holds — not just raises them — could take it. The assert below
// is what will catch that.
// Where 1.27 came from: a loadout where a corner BROKE. Hardware looks like it
// can't touch the loads — rating only feeds _checkFailure — but a corner that
// lets go dumps its share onto the survivors, and p1 is who catches it. Measured:
// the same quad with hardware the budget can't actually buy (setHardware fails
// silently, cheap hardware stays on, p2/p4 tear off) reads p1 at 2.48 kN. Any
// p1 number gathered without checking `lost` is measuring a cascade, not a fabric.
//
// So the fabric is not cosmetic and this is the whole design win: 0.98 vs 1.23
// against a 1.20 rating is the difference between the $5 carabiner holding the
// wild night and failing it. Choosing membrane doesn't just cost wind load and
// pond — it takes your cheapest corner off the post. `fabric_decides_p1` below
// asserts exactly that, so nobody has to trust this paragraph.
const COVER_QUAD = ['p1', 'p2', 'p3', 'p4'];
/** The old line: holds nothing above shackle grade, ends pyrrhic. The sacrifice-play control. */
const PYRRHIC_QUAD = ['t2', 'p3', 'p4', 't2b'];
@ -327,6 +336,13 @@ export default async function run(t) {
if (pyrrhicShop) pyrrhicShop.setFabric('cloth');
const pyrrhic = pyrrhicShop ? await fly(yard, pyrrhicShop, 'storm_02_wildnight', { repair: true, broom: true }) : null;
// The SAME $80 line, one variable changed: waterproof membrane instead of shade
// cloth. This is the fabric decision's control — see the header. Both fabrics
// cost $0, so the shop cannot tell them apart; only the storm can.
const membraneShop = shop(yard, COVER_QUAD, [CARABINER, RATED, SHACKLE, RATED], 0);
if (membraneShop) membraneShop.setFabric('membrane');
const membrane = membraneShop ? await fly(yard, membraneShop, 'storm_02_wildnight', { broom: true }) : null;
const cheapShop = shop(yard, COVER_QUAD, [CARABINER, CARABINER, CARABINER, CARABINER], 0);
const cheap = cheapShop ? await fly(yard, cheapShop, 'storm_02_wildnight') : null;
@ -389,6 +405,28 @@ export default async function run(t) {
return `$${line.spent} · shade cloth · ${COVER_QUAD.join(',')} -> hp ${line.hp}, ${line.lost}/4 lost — CLEAN WIN`;
});
// FABRIC IS A DECISION, NOT A SKIN. Both fabrics are $0 — DESIGN.md wants the
// forecast to be the price — so the only thing that can justify the choice is
// that it changes the night. Measured, same $80 line, one variable:
//
// shade cloth p1 0.98 kN -> holds (18% under a 1.2 kN carabiner)
// membrane p1 1.23 kN -> LETS GO (2.5% over, long enough to trip)
//
// Membrane loses the cheapest corner on the wild night; that is what you buy
// with the +26% hail block it gives back. If this ever goes green-on-both, the
// fabric pick has become free and the prep screen is lying about a choice.
t.test('balance: fabric decides p1 — membrane tears the cheap corner off', () => {
if (!line || !membrane) throw new Error('could not buy the fabric control on $80');
if (membrane.lost <= line.lost) {
throw new Error(`fabric stopped mattering: the same $80 line lost ${line.lost}/4 on cloth and ` +
`${membrane.lost}/4 on membrane. Both fabrics are free, so if the storm can't tell them apart ` +
`the choice is cosmetic — either porosity stopped reaching the wind load (sail.js setFabric / ` +
`rigging.commit ordering) or storm_02 got soft enough that p1 survives full load.`);
}
return `same $80 line: cloth ${line.lost}/4 lost (hp ${line.hp}) · membrane ${membrane.lost}/4 lost ` +
`(hp ${membrane.hp}) — the fabric is the decision`;
});
// The sacrifice play, kept measured. DESIGN.md: "a sail that dies saving the
// garden". Now that a clean win EXISTS, this stops being the wild night's only
// outcome and becomes what it should always have been — a different, worse bet

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@ -79,7 +79,14 @@ summary.textContent = report.ok
: `FAIL — ${report.fail} failed, ${report.pass} passed, ${report.skip} skipped`;
const out = document.getElementById('out');
for (const letter of ['A', 'B', 'C', 'D', 'E']) {
// Render every lane the report actually CONTAINS, rather than a hardcoded list.
// This read ['A','B','C','D','E'] while the import list above also carries BAL,
// so the balance suite ran, was counted in the summary, and had every one of its
// rows silently dropped — including, had one ever gone red, the row saying which
// assert failed and why. The merge gate was invisible in the merge gate's own
// report. My bug: I added the BAL import and not this. Deriving the list means
// the next joint suite can't hit it. — B
for (const letter of [...new Set(report.results.map((r) => r.lane))]) {
const rows = report.results.filter((r) => r.lane === letter);
if (!rows.length) continue;
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