Trace every module/class the six retired paradigm documents introduced or
proposed, plus a general zero-importer sweep of generate/, core/, evals/.
Every candidate is one of: never built, already removed in a prior pass, or
live (imported by the serving reader / a protected dependency chain, and/or
test-covered). No code removed; no behavior change.
Baseline == final (no code touched):
smoke: 176 passed
full: 13163 passed, 111 skipped, 1 xfailed, 0 failed
holdout_dev v1: correct=5 wrong=0 refused=495 (n=500)
