37ac31c3f2
Deploy / deploy (push) Successful in 39s
Corrects and completes the occurrence rules, based on a design discussion plus one concrete data point: St. Anthony Abbot (plain Duplex) was found outright winning against an ordinary Sunday in the real Monastic 1617 engine, which the old duplex-1-classis-only threshold got wrong. - FeastClass gains `vigil`, inserted between `simplex` and `semiduplex` — one ordering that correctly serves both "does this win against a Sunday" (vigil behaves like simplex there) and "which of two saints wins a landing-day collision" (vigil beats simplex, loses to semiduplex). - LiturgicalDay.occurring (a flat OccurringFeast[] that could only ever express a losing *sanctoral* candidate) is replaced by `winner: DayWinner` + `commemorations: Commemoration[]` — a discriminated list that can hold the temporal day itself, one or more sanctoral entries, or (not built yet, but the shape already accommodates it) a future octave kind. - commemorations.ts: ordinary Sundays let Duplex+ win outright (Sunday commemorated in return), Semiduplex/Vigil transfer elsewhere (too substantial a feast to cheapen with a bare commemoration), Simplex stays and is commemorated. Privileged Sundays never displace; Duplex-majus+ commemorated, everything else transfers. - collision.ts (new): resolves two sanctoral candidates wanting the same day (a transfer landing on an already-occupied day, or two native saints sharing a date) — duplex > semiduplex > vigil > simplex, loser always commemorated, ties favor the native occupant. - temporal-id.ts (new): maps any date to one of the 52 real Sunday-collect ids from the previous commit, so a temporal winner/commemoration can actually be looked up, not just labeled "temporal" in the abstract. - index.ts's resolveDay orchestrates all of it, including the actual Monday/Saturday transfer mechanism. Landing on a privileged feria (the concrete case: Holy Week, right after Palm Sunday) is explicitly deferred rather than guessed at — it needs its own Easter-keyed lookup table, the same way the reference engine handles it. Added the Vigil of St. Lawrence (Aug 9) as real content specifically to exercise the backward-transfer rule end-to-end: Aug 9, 2026 is a Sunday, so the vigil transfers cleanly back to Saturday, verified by a new integration test alongside the unit-level rule and collision tests.