Complete rename of the card progression system from "Evolution" to
"Refractor" across all code, routes, models, services, seeds, and tests.
- Route prefix: /api/v2/evolution → /api/v2/refractor
- Model classes: EvolutionTrack → RefractorTrack, etc.
- 12 files renamed, 8 files content-edited
- New migration to rename DB tables
- 117 tests pass, no logic changes
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
formula_engine.tier_from_value read track.t1/t2/t3/t4 but the
EvolutionTrack model defines t1_threshold/t2_threshold/etc. Updated
both the function and test fixtures to use the _threshold suffix.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Extract shared pitcher value computation into _pitcher_value() helper.
Consolidate duplicated column lists and index helper in season stats tests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Separate batting and pitching into distinct tables with descriptive column
names. Eliminates naming collisions (so/k ambiguity) and column mismatches
between the ORM model and raw SQL. Each table now covers all aggregatable
fields from its source (BattingStat/PitchingStat) including sac, ibb, gidp,
earned_runs, runs_allowed, wild_pitches, balks, and games_started.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The single-letter `k` field was ambiguous and too short for comfortable use.
Rename to `so_pitcher` for clarity, and `so` to `so_batter` to distinguish
batting strikeouts from pitching strikeouts in the same model.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Closes#74
Adds app/services/formula_engine.py with three pure formula functions
(compute_batter_value, compute_sp_value, compute_rp_value), a dispatch
helper (compute_value_for_track), and a tier classifier (tier_from_value).
Tier boundaries and thresholds match the locked seed data from WP-03.
Note: pitcher formulas use stats.k (not stats.so) to match the
PlayerSeasonStats model field name introduced in WP-02.
19 unit tests in tests/test_formula_engine.py — all pass.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
