Mike Swanson 0579d05b66 dataforth(datasheet): Fix 2 — per-model slot maps resolve ambiguous DSCA layouts ...

Some DSCA subtypes' raw_data STATUS groups carry more (or fewer) value-bearing
entries than the template's spec-bearing rows (the test program measures slots the
printed sheet omits, e.g. DSCA49's 5mA load pair), so the in-order zip misaligned
values and those models were skipped by the count-guard.

New tool derive-dsca-slotmaps.js derives a per-model slotMap (absolute statusEntries
index per spec-bearing row) by greedily matching a staged original's printed values
to the DB raw_data STATUS entries (same fround formatting), then picking the
candidate map that validates against the most units. Models are grouped by identical
row-name signature and one map is derived per group from all sibling units — this
disambiguates duplicate values (e.g. a unit where 5mA != 50mA linearity forces the
correct slot; DSCA49-04 alone has only 2 staged units that can't, but its siblings'
25 units do). Stored as `slotMap` in dsca-templates.json.

Renderer: consults slotMap only when the sequential zip fails (value count !=
spec-row count), so the 88 already-clean models keep their path (no regression) and
ambiguous ones pull the right value via the map.

STAGE 3 re-validation: FINAL-TEST CLEAN 88 -> 92; 134 more certs now render
(null 450 -> 316); matches 2278 -> 2412. Same 6 retest-vintage dirty models, no
new mismatches. DSCA49 family + DSCA40-03 group now clean and validated.

Still blocked (separate gap, NOT layout ambiguity): DSCA45-* and most DSCA33-*
render null because they have NO spec-reader entries (render-datasheet bails before
rendering). Their slotMaps are derived and ready; they need spec coverage. One DSCA33
group (DSCA33-02/03/03A/04/05/1948) did not reach the slotMap validation threshold
(best 19/35 units) and stays skipped pending more/cleaner staged samples.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-18 13:02:34 -07:00

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