nx_ledes_lib.nx

nx_ledes_lib.nx -- LEGAL SPEND: UTBMS coding + LEDES 1998B validation + outside-counsel guidelines. The legal-ops category we had at zero. An invoice is not a document to read, it is a contract to enforce: outside counsel guidelines say what may be billed, at what rate, in what increments, by whom. u2605BLOCK BILLING is the single largest source of disputed legal spend: several distinct tasks lumped into one narrative with one time figure, so no line can be assessed on its own. It is detectable structurally -- more than one UTBMS task code implicated by a single entry -- and it is rejected here rather than merely flagged, because a flagged-but-payable line gets paid. u2605THE INCREMENT TOOTH: guidelines almost universally require tenth-of-an-hour billing. An entry in quarter hours (0.25) silently inflates every short task by up to 50%. Encoded as an exact divisibility check in HUNDREDTHS of an hour, so 0.1 is 10 and anything not a multiple of 10 fails. u2605FAIL-CLOSED: an entry with an UNRECOGNISED task or activity code is INVALID, never "assume billable". A code nobody recognises is a line nobody reviewed. UTBMS ranges encoded as data-driven bounds (rule 11): litigation task codes L100-L700, counselling C100-C500, activity codes A101-A114, expense codes E101-E124. STRUCTURE: pure decision core, zero I/O. license_tier: ORIGINAL LIB.