1c59f331f4
Option A (text-faithful): RateProblem gains time_unit (the duration's ORIGINAL unit; time stays int; defaults to the rate denominator). The SOLVER converts via convert_time -> exact Fraction -> int-or-refuse(non_integer); Fraction never leaves the solver, no floats. The reader accepts a convertible (minute<->hour) duration mismatch (keeps original time_unit); a non-convertible one still refuses rate_unit_mismatch. Signature includes time_unit ('30 minutes' != '30 hours').
Gold: r3-09 flips reader_refuses -> SOLVED (60 mph for 30 min = 30 mile, exact 1/2 hour; distractor 1800 rejected); new r3-13 non-convertible (3 gallons) stays rate_unit_mismatch. R3 gold 13/13; reader 9/0/0 -> answers 7/0/6 (setup_correct 8->9). Failure-family: rate_unit_mismatch now non-convertible-only -> still unsupported_rate_duration proposal surface; router-hygiene invariant stays green; R1 7/0/3, R2 10/0/0 unchanged. 119-test smoke green incl. invariants. Off-serving, no float path.
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| .. | ||
| adr | ||
| analysis | ||
| architecture | ||
| audit | ||
| brief | ||
| briefs | ||
| curriculum | ||
| decisions | ||
| evals | ||
| handoff | ||
| handoffs | ||
| implementation | ||
| lab | ||
| plans | ||
| research | ||
| sessions | ||
| workbench | ||
| zig | ||
| admissibility-exemplars.md | ||
| audio_pipeline_overview.md | ||
| capability_roadmap.md | ||
| claims_ledger.md | ||
| ethics_packs.md | ||
| EVAL_AUDIT_2026-05-20.md | ||
| eval_methodology.md | ||
| formation_pipeline_plan.md | ||
| frontier_baselines.md | ||
| gaps.md | ||
| hitl-backpressure.md | ||
| holdout_recipients.txt | ||
| identity_packs.md | ||
| master-plan-post-substrate-audit.md | ||
| model_dependency_size_tally.md | ||
| pack_inventory_2026-05-21.md | ||
| position_paper.md | ||
| PROGRESS.md | ||
| recognizer-registry.md | ||
| refusal-taxonomy.md | ||
| reviewers.yaml | ||
| runtime_contracts.md | ||
| RUST.md | ||
| safety_packs.md | ||
| teaching_order.md | ||
| test-debt-quarantine.md | ||
| truth_seeking_schema.md | ||
| Whitepaper.md | ||
| Yellowpaper.md | ||