chore(freeze): snapshot demo state before Plan-07 hardening work

Freeze current submission/demo baseline:
- casan-next-plans/: full task-level plan set (Plan 00 index + 02/04/06/07/08/09/12, QA, slide deck)
- optimize-docs/video-steps/: per-vector scene breakdown (commands/screen-text/script) + start-tmux
- run-all.sh / scorecard.sh / map-live.sh: REAL=1 live-battery wiring
- regenerated evidence + audit/telemetry logs from live REAL=1 run
- submission README + video recording guide updates
- dry-run pipeline logs for 001-okr-web-app

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

optimize-docs/video-steps/H5-Governance/B1-audit-tamper/screen-text.md

@@ -0,0 +1,23 @@
+# TEXT HIỂN THỊ — B1  🔥 HIGHLIGHT (không cắt)
+
+## Title card
+```
+B1 · AUDIT TAMPER (sửa 1 ký tự)
+repudiation · MAESTRO L6
+```
+
+## Caption bước 1 (trước khi sửa)
+```
+Ký head + verify chain  →  AUDIT_CHAIN_VALID  ·  exit = 0
+```
+
+## Caption bước 2 (đang phá hoại)
+```
+sed sửa "high" → "LOW" ở dòng 1 (đúng 1 thay đổi nhỏ)
+```
+
+## Caption kết quả (nhấn mạnh)
+```
+✅ AUDIT_HASH_MISMATCH  line=1
+Sửa 1 ký tự — hash-chain gãy, bắt ngay. Audit BẤT BIẾN.
+```