Derived US macro regime (Sugra-computed): liquidity / credit / policy majority

One machine-readable regime label - expanding / neutral / contracting - folded by simple majority from three votes, each the sign of a 13-week change with an inclusive neutral band: liquidity (net-liquidity delta_13w, band 75 USD bn), credit (Chicago Fed credit-conditions subindex change, SIGN INVERTED - the index rises when conditions tighten; band 0.06) and policy (US policy rate change from the Bank for International Settlements dataset, band 12.5 bp). The liquidity and credit bands are the middle tercile of each series' own measured 13-week move distribution (a third of history reads neutral by construction); the policy band is FIXED at half a standard 25 bp step, so any real move clears it - hikes vote contracting, cuts expanding. A vote with an unavailable input is null - absent, never fabricated - and fewer than two cast votes is 503, never a label from one input. Every vote discloses its route, dates, change and band, so the classification is reproducible from public data. This endpoint REPLACES the six-request client-side recipe. Cache 6h.