fix(prototype): read path edges as EdgeIdDir

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

mod/content/overtake_probe.script.tl

@@ -13,9 +13,10 @@ local function p(s : string)
 end
 
 local function edgeAt(mp : Engine.Component.MovePath) : EdgeId, boolean
-	local e = mp.path.edges[mp.dyn.pathPos.edgeIndex + 1]
+	-- path.edges is 1-based, elements are EdgeIdDir userdata (tealdef says {EdgeId, boolean})
+	local e = (mp.path.edges as {any})[mp.dyn.pathPos.edgeIndex + 1] as UtilPathfinding.EdgeIdDir
 	if e == nil then return nil, nil end
-	return e[1], e[2]
+	return e.edgeId, e.dir
 end
 
 local function turnaround(edge : EdgeId) : integer