sb-api: label helpers wiring + gym/stat_value + policy constants (WI-2, issue #2)

crates/sb-core/src/character.rs

@@ -392,6 +392,27 @@ pub fn find_class_info(class: &Class) -> &'static ClassInfo {
         .expect("invalid class")
 }
 
+/// Gym stat display order — pinned to the get_gym handler's fixed array
+/// (routes/mod.rs:588–594), deliberately differs from TRAINING_GROUNDS order.
+pub const GYM_STAT_DISPLAY_ORDER: &[&str] = &[
+    "strength",
+    "intelligence",
+    "dexterity",
+    "constitution",
+    "luck",
+];
+
+pub fn stat_value(stats: &CharacterStats, stat: &str) -> Option<i64> {
+    match stat {
+        "strength" => Some(stats.strength),
+        "intelligence" => Some(stats.intelligence),
+        "dexterity" => Some(stats.dexterity),
+        "constitution" => Some(stats.constitution),
+        "luck" => Some(stats.luck),
+        _ => None,
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -631,4 +652,70 @@ mod tests {
         assert_eq!(first.energy, second.energy);
         assert_eq!(first.nerve, second.nerve);
     }
+
+    #[test]
+    fn gym_display_order_covers_all_training_grounds() {
+        let stats = CharacterStats {
+            strength: 10,
+            intelligence: 11,
+            dexterity: 12,
+            constitution: 13,
+            luck: 14,
+        };
+        assert_eq!(GYM_STAT_DISPLAY_ORDER.len(), TRAINING_GROUNDS.len());
+        for name in GYM_STAT_DISPLAY_ORDER {
+            assert!(
+                TRAINING_GROUNDS.iter().any(|g| g.stat == *name),
+                "no training ground for stat {}",
+                name
+            );
+            assert!(
+                stat_value(&stats, name).is_some(),
+                "stat_value cannot resolve {}",
+                name
+            );
+        }
+        for ground in TRAINING_GROUNDS {
+            assert!(
+                GYM_STAT_DISPLAY_ORDER.contains(&ground.stat),
+                "gym display order missing stat {}",
+                ground.stat
+            );
+        }
+    }
+
+    #[test]
+    fn race_table_covers_all_variants() {
+        let all = [
+            Race::Human,
+            Race::Elf,
+            Race::Dwarf,
+            Race::Hobbit,
+            Race::HalfElf,
+        ];
+        for race in &all {
+            assert!(RACES.iter().any(|r| &r.race == race));
+            let _ = find_race_info(race);
+        }
+    }
+
+    #[test]
+    fn class_table_covers_all_variants() {
+        let all = [
+            Class::Warrior,
+            Class::Paladin,
+            Class::Rogue,
+            Class::Bard,
+            Class::Hunter,
+            Class::Monk,
+            Class::Mage,
+            Class::Wizard,
+            Class::Conjurer,
+            Class::Sorcerer,
+        ];
+        for class in &all {
+            assert!(CLASSES.iter().any(|c| &c.class == class));
+            let _ = find_class_info(class);
+        }
+    }
 }