nx_barfresh_gate.nx

nx_barfresh_gate.nx -- GATE for the bar-age ruler (nx_barfresh_lib), driven IN-PROCESS on planted plan rows with the current month HANDED IN, so every state is reached deterministically: a fresh bar, an older bar nobody looked for this month (the hard fail), an older bar attested this month as the newest the listing has, an older bar a this-month scan contradicts, an attestation from LAST month (does not count), an attestation for a DIFFERENT listing (does not count), a plan with no bars (NO-BAR, not refused), malformed and future months, a year wrap, NUL-terminated lines as the ranker hands them over, a mixed board whose partition must sum, a declaration made twice (a repeated bar id, a repeated same-day scan) refused with its rule named while two scans on different days stay two attestations, the month-of-epoch derivation against the estate's own civil date at a month boundary, and the two-tree plan read on /tmp trees. Every fixture asserts its own condition first. license_tier: ORIGINAL No hw writes (Rule 26).