Phase 1: Box Theory refactoring + include reduction

Phase 1-1: Split hakmem_tiny_free.inc (1,711 → 452 lines, -73%)
- Created tiny_free_magazine.inc.h (413 lines) - Magazine layer
- Created tiny_superslab_alloc.inc.h (394 lines) - SuperSlab alloc
- Created tiny_superslab_free.inc.h (305 lines) - SuperSlab free

Phase 1-2++: Refactor hakmem_pool.c (1,481 → 907 lines, -38.8%)
- Created pool_tls_types.inc.h (32 lines) - TLS structures
- Created pool_mf2_types.inc.h (266 lines) - MF2 data structures
- Created pool_mf2_helpers.inc.h (158 lines) - Helper functions
- Created pool_mf2_adoption.inc.h (129 lines) - Adoption logic

Phase 1-3: Reduce hakmem_tiny.c includes (60 → 46, -23.3%)
- Created tiny_system.h - System headers umbrella (stdio, stdlib, etc.)
- Created tiny_api.h - API headers umbrella (stats, query, rss, registry)

Performance: 4.19M ops/s maintained (±0% regression)
Verified: Larson benchmark 2×8×128×1024 = 4,192,128 ops/s

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

core/tiny_api.h

@@ -0,0 +1,12 @@
+// tiny_api.h - API headers for Tiny allocator
+// Consolidates Phase 2B API modules
+
+#ifndef TINY_API_H
+#define TINY_API_H
+
+#include "hakmem_tiny_stats_api.h"     // Phase 2B: Stats API
+#include "hakmem_tiny_query_api.h"     // Phase 2B-1: Query API
+#include "hakmem_tiny_rss_api.h"       // Phase 2B-2: RSS Utils
+#include "hakmem_tiny_registry_api.h"  // Phase 2B-3: Registry
+
+#endif // TINY_API_H