release: silence runtime logs and stabilize benches

- Fix HAKMEM_LOG gating to use  (numeric) so release builds compile out logs.
- Switch remaining prints to HAKMEM_LOG or guard with :
  - core/box/hak_core_init.inc.h (EVO sample warning, shutdown banner)
  - core/hakmem_config.c (config/feature prints)
  - core/hakmem.c (BigCache eviction prints)
  - core/hakmem_tiny_superslab.c (OOM, head init/expand, C7 init diagnostics)
  - core/hakmem_elo.c (init/evolution)
  - core/hakmem_batch.c (init/flush/stats)
  - core/hakmem_ace.c (33KB route diagnostics)
  - core/hakmem_ace_controller.c (ACE logs macro → no-op in release)
  - core/hakmem_site_rules.c (init banner)
  - core/box/hak_free_api.inc.h (unknown method error → release-gated)
- Rebuilt benches and verified quiet output for release:
  - bench_fixed_size_hakmem/system
  - bench_random_mixed_hakmem/system
  - bench_mid_large_mt_hakmem/system
  - bench_comprehensive_hakmem/system

Note: Kept debug logs available in debug builds and when explicitly toggled via env.

core/hakmem_ace.c

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include "hakmem_internal.h"
 #include "hakmem_ace.h"
 #include "hakmem_pool.h"
 #include "hakmem_l25_pool.h"
@@ -52,12 +53,16 @@ void* hkm_ace_alloc(size_t size, uintptr_t site_id, const FrozenPolicy* pol) {
 
     // MidPool: 2–52KiB (Phase 6.21: with Bridge classes for W_MAX rounding)
     if (size >= 33000 && size <= 34000) {
+#if !HAKMEM_BUILD_RELEASE
         fprintf(stderr, "[ACE] Processing 33KB: size=%zu, POOL_MAX_SIZE=%d\n", size, POOL_MAX_SIZE);
+#endif
     }
     if (size <= POOL_MAX_SIZE) {
         size_t r = round_to_mid_class(size, wmax_mid, pol);
         if (size >= 33000 && size <= 34000) {
+#if !HAKMEM_BUILD_RELEASE
             fprintf(stderr, "[ACE]   round_to_mid_class returned: %zu (0 means no valid class)\n", r);
+#endif
         }
         if (r != 0) {
             // Debug: Log 33KB allocation routing (only in debug builds)
@@ -67,7 +72,9 @@ void* hkm_ace_alloc(size_t size, uintptr_t site_id, const FrozenPolicy* pol) {
             }
 #endif
             if (size >= 33000 && size <= 34000) {
+#if !HAKMEM_BUILD_RELEASE
                 fprintf(stderr, "[ACE]   Calling hak_pool_try_alloc with size=%zu\n", r);
+#endif
             }
             HKM_TIME_START(t_mid_get);
             void* p = hak_pool_try_alloc(r, site_id);