Debug Counters Implementation - Clean History

Major Features:
- Debug counter infrastructure for Refill Stage tracking
- Free Pipeline counters (ss_local, ss_remote, tls_sll)
- Diagnostic counters for early return analysis
- Unified larson.sh benchmark runner with profiles
- Phase 6-3 regression analysis documentation

Bug Fixes:
- Fix SuperSlab disabled by default (HAKMEM_TINY_USE_SUPERSLAB)
- Fix profile variable naming consistency
- Add .gitignore patterns for large files

Performance:
- Phase 6-3: 4.79 M ops/s (has OOM risk)
- With SuperSlab: 3.13 M ops/s (+19% improvement)

This is a clean repository without large log files.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>

scripts/profiles/tinyhot_tput_noadopt.env

@@ -0,0 +1,36 @@
+# Profile: Tiny Hot Throughput (No Adopt)
+# Purpose: Minimize adopt/publish overhead for workloads with low adopt hit-rate
+# Use: scripts/larson.sh hakmem --profile tinyhot_tput_noadopt 2 4
+
+# Tiny Fast Path
+export HAKMEM_TINY_FAST_PATH=1
+
+# SuperSlab Settings
+export HAKMEM_TINY_USE_SUPERSLAB=1    # FIX: Was HAKMEM_USE_SUPERSLAB (wrong name)
+export HAKMEM_TINY_SS_ADOPT=0         # Disable adopt to avoid extra scans
+export HAKMEM_TINY_MUST_ADOPT=0
+export HAKMEM_TINY_SS_FORCE_LG=20     # 1MB to reduce VmSize pressure
+export HAKMEM_TINY_SS_CACHE=2         # Small cache to reduce mmap frequency
+export HAKMEM_TINY_SS_PRECHARGE=0
+
+# SLL Settings (Tiny hot path)
+export HAKMEM_TINY_SLL_ONLY=0
+export HAKMEM_TINY_FAST_CAP_0=64
+export HAKMEM_TINY_FAST_CAP_1=64
+export HAKMEM_TINY_REFILL_COUNT_HOT=64
+
+# TLS Magazine Settings
+export HAKMEM_TINY_TLS_LIST_CAP=32
+export HAKMEM_TINY_TLS_HOT_MAG_CAP=128
+
+# Debug/Safety (OFF for performance)
+export HAKMEM_TINY_TRACE_RING=0
+export HAKMEM_TINY_SAFE_FREE=0
+export HAKMEM_TINY_REMOTE_GUARD=0
+export HAKMEM_DEBUG_COUNTERS=0
+
+# Box Refactor
+export HAKMEM_TINY_PHASE6_BOX_REFACTOR=1
+
+# Registry window (keep conservative)
+export HAKMEM_TINY_REG_SCAN_MAX=256