docs(plans): sync roadmap status + paths to post-restructure state

- Plan-01 marked ✅ DONE (INDEX table + P3 tier + BACKLOG row + plan header).
- Plan-06 / Plan-12 dependency on 01 satisfied → 🔓 unblocked (headers + BACKLOG rows).
- Repoint command/path refs in all plans (except Plan-01's migration narrative):
  .specify/{scripts,tests,security,config,templates,governance} -> packages/casan-harness/...;
  golden-runs/traceability-map/docs-input -> apps/okr/domain/...; `cd AINative_OKR_CASAN5`
  -> `cd $(git rev-parse --show-toplevel)`; fix relative links + Plan-13 control-plane location.

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

docs/plans/CASAN_PLAN_16_SECURITY_AUDIT_REMEDIATION.md

@@ -84,7 +84,7 @@ drift-detect **coarse** (chỉ char-similarity → **lật phủ định lọt**
 
 ## 2. Kế hoạch remediation (theo ưu tiên — mỗi task có verify fail-able)
 
-> Nguyên tắc: mỗi fix phải kèm **test đối kháng fail-able** trong `.specify/tests/`,
+> Nguyên tắc: mỗi fix phải kèm **test đối kháng fail-able** trong `packages/casan-harness/tests/`,
 > nối `ci-harness-gate.sh`, giữ 280/0. Verify trong WSL.
 
 ### P0 — chặn đứng "gãy" & bypass toàn vẹn