Netcode: fix interpolated-tick cues + add a terminal RPC reaper (audit M1/M4/M12)

M1 — two systems timed INTERPOLATED ghosts against the PREDICTED tick,
the exact hazard CLAUDE.md documents and the one that is invisible on
loopback:
- EnemyDangerTelegraphSystem timed the red danger cone off nt.ServerTick,
  so over a real connection the dodge tell finished ~RTT/2 + interp
  buffer EARLY. The cue lied.
- PlayerAnimationDriveSystem fed the same predicted tick to RemoteDriveJob
  ([WithDisabled(GhostOwnerIsLocal)] — i.e. interpolated teammates), so a
  teammate's swing animation desynced from their damage.
Both now use the ZoneTelegraphSystem idiom. The LOCAL drive job keeps
ServerTick: the owning player really is predicted.

M12 — the RPC leak I reproduced live during the audit. Every receiver in
this project gates on RequireForUpdate over a scene-baked singleton; in a
scene without it the receiver never runs and the request entity is never
destroyed. Netcode's WarnAboutStaleRpcSystem Consume()s but never
destroys, and is compiled out of player builds — so these accumulated
silently, and worst in a shipped build.
New StaleRpcReaperSystem (server, OrderLast, no RequireForUpdate) destroys
any unconsumed request that outlived its receiving frame. Consumed
requests are left to their owner. Verified live: a planted unconsumed
request is gone within a few frames. Three regression tests pin both
halves of the contract.

Also: HealthApplyDamageSystem and ProjectileDamageSystem now filter
.WithAll<Simulate>(). They are ServerSimulation-only so it was not a bug,
but the audit's "all predicted systems filter Simulate" reassurance was
false until now — the rule is unconditional again.

The five undisposed Allocator.Temp ECBs the audit flagged all lived in
systems the purge deleted; none remain.

298/298 green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Assets/_Project/Scripts/Server/Combat/HealthApplyDamageSystem.cs

@@ -44,6 +44,7 @@ namespace ProjectM.Server
 
             foreach (var (health, dmg, entity) in
                      SystemAPI.Query<RefRW<Health>, DynamicBuffer<DamageEvent>>()
+                         .WithAll<Simulate>() // predicted-group convention: only simulate what this tick simulates
                          .WithEntityAccess())
             {
                 if (dmg.Length == 0)