docs(bf-z9m): verify combat kill scoring already implemented

notes/bf-z9m-verification.md

@@ -0,0 +1,41 @@
+# Bead bf-z9m Verification
+
+## Date
+2026-06-16
+
+## Task
+Award score for combat kills in engine (turn.go)
+
+## Finding
+**Already implemented** in commit c1acd83 (2026-06-16 23:40:23 -0400)
+
+### Implementation Details
+
+The feature was fully implemented with:
+
+1. **Configurable kill score** (`engine/types.go:182`):
+   ```go
+   KillScore int `json:"kill_score"` // score awarded per combat kill
+   ```
+
+2. **Default value set to 1** (`engine/types.go:201`):
+   ```go
+   KillScore: 1,  // Default score per combat kill
+   ```
+
+3. **Score awarding in executeCombat()** (`engine/turn.go:272-275`):
+   ```go
+   // Award score for the kill
+   if e.Owner < len(gs.Players) {
+       gs.Players[e.Owner].Score += gs.Config.KillScore
+   }
+   ```
+
+### Implementation Quality
+✅ Matches requirements exactly:
+- Score incremented immediately after CombatDeaths tracking
+- Configurable via Config struct
+- Default value of 1 point per kill
+- Proper bounds checking on array access
+
+The implementation ensures that killing enemy bots earns real score points, making combat a viable strategy compared to pure foraging.