Update Healer Man server

src/game/partyNavigation.ts

@@ -47,6 +47,8 @@ export interface PartyNavigationGraph {
 }
 
 export interface PartyNavigationBuildOptions {
+  /** Validation may retain floor triangles while gameplay routes off-mesh links through nodes. */
+  readonly retainSurfaceTriangles?: boolean;
   readonly weldTolerance?: number;
   /** Defensive runtime ceiling; checked before graph allocations begin. */
   readonly maxSourceTriangles?: number;
@@ -167,7 +169,7 @@ function connectedComponents(nodes: readonly MutableWeldedNode[]): number[][] {
   return components;
 }
 
-function buildPartyNavigationTriangleNodes(
+export function buildPartyNavigationTriangleNodes(
   triangles: readonly PartyNavigationTriangle[],
   positions: readonly PartyNavigationPosition[],
 ): readonly PartyNavigationTriangleNode[] {
@@ -432,7 +434,7 @@ export function buildPartyNavigationGraph(
 
   return Object.freeze({
     nodes: Object.freeze(nodes),
-    ...(usesOffMeshLinks ? {} : {
+    ...(usesOffMeshLinks && !options.retainSurfaceTriangles ? {} : {
       triangles: Object.freeze(triangles),
       triangleNodes,
     }),