controllogic: debug value is Value (array-capable); lua get narrows to scalar

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

internal/controllogic/lua.go

@@ -1,6 +1,7 @@
 package controllogic
 
 import (
+	"math"
 	"sync"
 
 	lua "github.com/yuin/gopher-lua"
@@ -60,9 +61,9 @@ func (lr *luaRuntime) ensure() error {
 	L.SetGlobal("get", L.NewFunction(func(s *lua.LState) int {
 		target := s.CheckString(1)
 		ds, name, ok := parseRef(target)
-		var v float64
-		if ok && lr.curResolve != nil { // shim: Task 6 finalizes lua Value handling
-			if f, fok := lr.curResolve(ds, name).(float64); fok {
+		v := math.NaN()
+		if ok && lr.curResolve != nil {
+			if f, isNum := lr.curResolve(ds, name).(float64); isNum {
 				v = f
 			}
 		}