fix(webwalker): don't advance path index on failed door traversal

When sleepUntil times out waiting for the player to pass through a
door/gate, return false instead of advancing minPathIndex and reporting
success. This lets the next loop iteration retry the same door.

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

Author: Michael Zarglis

runelite-client/src/main/java/net/runelite/client/plugins/microbot/util/walker/Rs2Walker.java

@@ -1227,6 +1227,7 @@ private static boolean handleDoors(List<WorldPoint> path, int index) {
 
                         if (!passedThrough) {
                             log.warn("Timed out waiting to pass through door/gate from {} to {}", startPos, destPos);
+                            return false;
                         }
                     }