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/H6-AgentOps/D2-negative-control/commands.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# D2 — Negative control: KHÔNG báo động giả (khi không có spike)
+# cwd = thư mục gốc dự án. Offline OK.
+
+printf '%s\n' \
+'{"step":"srs","total_tokens":210}' \
+'{"step":"bd","total_tokens":195}' \
+'{"step":"spec","total_tokens":230}' \
+'{"step":"plan","total_tokens":240}' > /tmp/nospike.jsonl
+bash .specify/scripts/bash/cost-spike-detect.sh /tmp/nospike.jsonl 3.0; echo "exit=$?"
+
+# Kỳ vọng: COST_SPIKE_NONE · exit=0 — control không la làng