Fix C7 warm/TLS Release path and unify debug instrumentation

core/box/tiny_route_box.c

@@ -4,6 +4,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 
 // Default: conservative profile (all classes TINY_FIRST).
 // This keeps Tiny in the fast path but always allows Pool fallback.
@@ -40,5 +41,16 @@ void tiny_route_init(void)
         //   - 全クラス TINY_FIRST（Tiny を使うが必ず Pool fallbackあり）
         memset(g_tiny_route, ROUTE_TINY_FIRST, sizeof(g_tiny_route));
     }
-}
 
+    #if HAKMEM_BUILD_RELEASE
+    static int rel_logged = 0;
+    if (!rel_logged) {
+        const char* mode =
+            (g_tiny_route[7] == ROUTE_TINY_ONLY)  ? "TINY_ONLY"  :
+            (g_tiny_route[7] == ROUTE_TINY_FIRST) ? "TINY_FIRST" :
+            (g_tiny_route[7] == ROUTE_POOL_ONLY)  ? "POOL_ONLY"  : "UNKNOWN";
+        fprintf(stderr, "[REL_C7_ROUTE] profile=%s route=%s\n", profile, mode);
+        rel_logged = 1;
+    }
+    #endif
+}