[CLAUDE] Docs: S101 check-email AI_INFRA + H19 fable-clone formal adopt + model-tier 12/12

- check-email batch13 ack (SE caught-up H-17, Fable-restore H-8 recognized) + re-stamp H10 body-hash 5f511fe5->5f8b8504 (no-strip->canonical) + frontier flag#2 RESOLVED (AI_INFRA re-stamped 8b6a8354=SE-computed)
- model-tier bundle 07-03: 12/12 (all-inherit form-valid; v2-pin-simple not-adopted) + Q1/Q2 documented + selftest-stamp -> send-email 6c
- H19 fable-clone FORMAL ADOPT + RC-stamp RC-pqhuy1987-03-07-2026-17-46-35: 2 command fable-real/fable-clone (that/ao toggle, semantic-inverse) + marker gitignored + engine SS-K (K.A-K.D + 3 floor-fidelity gap) + session-start BUOC 0.5b reader (WF2-Lane-A fix marker-write-only) + 4 adap-report
- 2-workflow Harness-9: WF1 wf_5f308fd8-744 SOUND_WITH_CONCERNS (lost-to-interruption->resume-cached) + WF2 wf_ed5b972f-a4d PASS_WITH_CONCERNS 0-BLOCKING
- mapping reviewer + investigator-codebase; VACUOUSLY-MET-honest (all-inherit->0 runtime-delta; value=future-proof-floor + anti-consensus-catch NOT cost; nac designed+will-dogfood)
- GAP-3 AS-10 fired LIVE (WF1+WF2 lanes auto-harvested agent-memory -> dogfood-validate convention-not-mechanism; harness-sanctioned, verified, KEPT)
- email AI_INFRA harness-19-adopt-plus-model-tier (selftest-stamp 6c PASS)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitignore

@@ -86,6 +86,11 @@ src/Backend/SolutionErp.Api/wwwroot/exports/
 # Pattern AFTER !.claude/** so last-match wins (.claude/ itself not excluded → re-include valid).
 .claude/hmw-mode.on
 
+# Fable-real-mode marker — H19 thật/ảo toggle (session-local; gitignore GIỐNG hmw-mode.on —
+# commit → thật-mode STUCK-ON khi clone = burn quota top-model, TỆ HƠN hmw case vì nó elevate model-tier).
+# Pattern AFTER !.claude/** so last-match wins.
+.claude/fable-real-mode.on
+
 # HMW run-trace folders — Harness-10 (2026-06-18): `.claude/workflows/runs/<run-id>/` is git-TRACKED
 # (run.md + sub-md/ + harvest/ + _ledger.md) for auditability. Stays tracked via the !.claude/** negation
 # above — do NOT add an ignore rule for runs/. Containment model shifts from Harness-2 B6 ("wave-*/ gitignored