Melee: surface weapon state across maps; reset stale caches

- Map transitions often leave a non-crowbar weapon active, so the killbot
  silently does nothing. Log every active-weapon change as a normal
  `melee: active ... crowbar=0/1` line and toast once suggesting the crowbar.
- Recover the crowbar model from the server entity when the client weapon
  model index is missing/0 after a map change.
- Clear the bone cache and aim/silent locks when the local player entity
  changes (map load/respawn) so stale entity/model data cannot poison melee
  target selection.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/hl2h.cpp b/src/hl2h.cpp
index 4f5673f..f95f6ed 100644
--- a/src/hl2h.cpp
+++ b/src/hl2h.cpp
@@ -556,6 +556,15 @@ static void do_move(int seq, float frametime) {
   if (!ent)
     return;
 
+  // New map / respawn: drop stale bone caches and target locks.
+  static void *last_local_ent = nullptr;
+  if (ent != last_local_ent) {
+    last_local_ent = ent;
+    bones_clear();
+    aimbot_reset_lock();
+    silentaim_reset_lock();
+  }
+
   if (feature_active(FEAT_SPREAD)) {
     resolve_server_netvars();
     void *srv = nullptr;