Students can now record credits earned in courses taken outside the J27
program via an inline editable amber chip on each spec card. Values flow
through the LP (per-spec demand reduces by external amount), upper-bound
math, decision-tree search, and the credit bar visualization. The 9-credit
threshold and the 3-spec achievement cap are unchanged; required-course
gates remain authoritative — external credits never satisfy them.
Apply the J27 (5/6/2026) Stern specialization sheet:
- Add Healthcare (HCR) as the 15th specialization, with HCR cross-listings on
spr2-health-medical, spr3-analytics-ml, sum2-social-media (renamed), and
fall1-managing-change. 10 credits available, no required-course gate.
- Rename sum2-social-media to "Digital Marketing Strategy in Practice";
replace its description with new MSKCC-anchored content; clear instructor
pending confirmation of new lead.
- Switch from delete-and-replace to the previously-unused cancelled flag
(Approach B): mark spr5-customer-insights cancelled, add Managing Growing
Companies back to Summer Set 2 as a cancelled placeholder per the printed
sheet.
- Update data integrity tests: course count 46 -> 47, spec count 14 -> 15;
per-spec "across sets" helper now filters cancelled courses so future
cancellations trigger an obvious assertion failure (BRM 6 -> 5,
MKT 7 -> 6, HCR 4 new).
- Replace hardcoded 14 in optimizer.test.ts with SPECIALIZATIONS.length.
determineStatuses() was marking specs as 'achievable' based solely on
per-specialization upper bounds, ignoring credit sharing with achieved
specs. Now performs an LP feasibility check to verify the spec can
actually be achieved alongside the current achieved set.
Bill