[CLAUDE] Infra: adopt AI_INFRA HMW-governance broadcast — ultra-on/off toggle + hmw.js checkpoint-gate + memory-safety (S49)

adap-apply 2026-06-03-Agent-ultracode-hmw-mem-governance (reviewer_gate PASS).
PROJECT-FIT=ADOPT tailored: SE 8-agent roster. nac=executed-file (verified-pending restart+spawn-test).

- T1/T2 toggle: .claude/commands/ultra-on.md + ultra-off.md; marker .claude/hmw-mode.on gitignored (T2 non-negotiable).
- T3: session-start BUOC 0.5 reads marker -> reports ON/OFF.
- S2/S3/S4: .claude/workflows/hmw.js P2 fan-out — checkpointApproved throw (mechanized), args JSON.parse-guard, role-whitelist fail-soft, VALID_ROLES=8 SE agents, sub-no-spawn-sub, return schema findings+memoryDelta 4-field (R1).
- M1-M5: B1 slice-inject / M2 return-delta-only / B3 single-writer append-only / B2 harvest-lien / M5 store_memory-strip re-verified intact (0 tools-grant).
- agents/README.md +HMW governance section (VALID_ROLES source-of-truth) + adap-report 5-field LOCK.

Test 181 unchanged (no .cs/.tsx). CI-skip (all .md/.js/.gitignore).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -82,6 +82,10 @@ src/Backend/SolutionErp.Api/wwwroot/exports/
 !.claude/
 !.claude/**
 
+# HMW-mode marker — session-local toggle (T2: MUST gitignore — commit → clone stuck-ON / ungoverned on-ramp).
+# Pattern AFTER !.claude/** so last-match wins (.claude/ itself not excluded → re-include valid).
+.claude/hmw-mode.on
+
 # Claude harness orphan dumps
 *.zip