store: SBA Scout Rust Phase 6: stat weights configurable via TOML settings

graph/decisions/sba-scout-rust-phase-6-stat-weights-configurable-via-toml-se-c7aab0.md

@@ -0,0 +1,31 @@
+---
+id: c7aab060-25b8-4128-a661-eefad9dc4674
+type: decision
+title: "SBA Scout Rust Phase 6: stat weights configurable via TOML settings"
+tags: [sba-scout, rust, configuration, phase-6, calc, weights, toml, figment]
+importance: 0.6
+confidence: 0.8
+created: "2026-02-27T01:18:26.984962+00:00"
+updated: "2026-02-27T01:18:26.984962+00:00"
+---
+
+# SBA Scout Rust — Phase 6 Configuration Decision
+
+## Decision
+Cal requested that batter and pitcher stat weight constants be made configurable via the TOML settings file rather than hardcoded in source.
+
+## Current State (Phase 1)
+Weights are hardcoded as `BATTER_WEIGHTS` and `PITCHER_WEIGHTS` arrays in `calc/weights.rs`.
+
+## Planned Phase 6 Change
+- Expose standardized scoring weights in `settings.toml`
+- Load via `figment` config pipeline (already used for other settings)
+- Allows tuning matchup scoring weights without recompiling
+
+## Context
+- Python SBA Scout has a `RatingWeights` in `config.py` for legacy composite ratings — this is the Rust equivalent for the standardized scoring system
+- Standardized scores use a -3 to +3 range based on league averages/stdev
+- Handedness-aware: `vLHP`/`vRHP` for batters, `vLHB`/`vRHB` for pitchers
+
+## Repository
+- Repo: `sba-scouting`, branch `feat/rust-rewrite`, subdir `rust/`