feat(P2): Nova rebrand — code/env-vars/consumer-path (REQ-158/159/160)

core/env.py dual-read helper (D-108); 21 ACDL_*→NOVA_* env vars migrated
across core/scripts/adapters/tests/workflows + .env/.env.secrets (key
rename, values stay). G-106 binding: run_platform.sh:288-289 +
regression_verify.py:309-312 dual-read (NOVA first, ACDL fallback).
G-108 binding: Gitea NOVA_* secrets created via API + workflow secrets:
refs updated (deploy.yml + modules-lifecycle.yml, .gitea + .github).
acdl_tagging.py→nova_tagging.py (D-109 warn mode, nova:* enforced).
.acdl/→.nova/ consumer path (resolver + deploy workflow + schema +
tests + docs). Test fixtures updated; pytest + run_ci.sh PASS.

---ci---
project: acdl
phase: 2
milestone: v1.15
status: execute
---/ci---

scripts/run_regression.sh

@@ -7,8 +7,9 @@
 #
 # Usage:
 #   bash scripts/run_regression.sh                  # run all checks
-#   ACDL_REGRESSION_MILESTONE=v1.10 ACDL_REGRESSION_PHASE=52 \
+#   NOVA_REGRESSION_MILESTONE=v1.10 NOVA_REGRESSION_PHASE=52 \
 #     bash scripts/run_regression.sh                # override metadata
+#   (ACDL_REGRESSION_* legacy fallback kept until P5)
 #
 # Output:
 #   .ciagent/REGRESSION_REPORT.md   human-readable report
@@ -17,8 +18,9 @@ set -euo pipefail
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 cd "$ROOT"
 
-echo "=== ACDL Regression VERIFY (D-091) ==="
-echo "milestone: ${ACDL_REGRESSION_MILESTONE:-v1.10}  phase: ${ACDL_REGRESSION_PHASE:-52}"
+echo "=== Nova Regression VERIFY (D-091) ==="
+# Dual-read: NOVA_* preferred, ACDL_* fallback (removed in P5).
+echo "milestone: ${NOVA_REGRESSION_MILESTONE:-${ACDL_REGRESSION_MILESTONE:-v1.10}}  phase: ${NOVA_REGRESSION_PHASE:-${ACDL_REGRESSION_PHASE:-52}}"
 echo ""
 
 python3 core/regression_verify.py