verify(P3): dead-code-and-stale-prefix-cleanup — 4-layer verify PASS + ship

VERIFY: structural — dead export + stale comments + prefixes gone; behavioral — 616 tests + CI PASS; quality — env-override test updated.

---ci---
project: acdl
phase: 3
milestone: v1.16
status: complete
phase_role: execution
requirements:
  covered: [REQ-167]
  partial: []
---/ci---

scripts/run_lifecycle_test.sh

@@ -11,7 +11,7 @@
 # from the long-lived platform VPC.
 #
 # Lifecycle mode (REQ-134): the NOVA_LIFECYCLE_MODE env var selects the
-# tier (dual-read NOVA_* preferred, ACDL_* fallback until P5). Default
+# tier (NOVA_* only; ACDL_* fallback removed in v1.15 P5). Default
 # "plan" runs `run_platform.sh --plan-only` (fast, no AWS
 # mutation, validates the contract->resolver->adapter->plan chain for
 # every module). Set to "full" to run the real `--apply` (terraform apply
@@ -26,7 +26,7 @@ EXAMPLE="$2"  # simple or complex
 CI_VPC_OUTPUTS="${3:-}"
 
 # Lifecycle mode: "plan" (default, fast) or "full" (real apply against AWS).
-# Dual-read: NOVA_* preferred, ACDL_* fallback (removed in P5).
+# NOVA_* env vars only (ACDL_* fallback removed in v1.15 P5, REQ-164).
 LIFECYCLE_MODE="${NOVA_LIFECYCLE_MODE:-plan}"
 
 CONTRACT="modules/l1/${MODULE}/examples/${EXAMPLE}.yml"
@@ -38,7 +38,7 @@ VPC_DEPENDENT="alb ecs-service rds uptime"
 # (only meaningful in full mode; plan mode ignores VPC outputs)
 if [ "$LIFECYCLE_MODE" = "full" ] && echo "$VPC_DEPENDENT" | grep -qw "$MODULE" && [ -n "$CI_VPC_OUTPUTS" ] && [ -f "$CI_VPC_OUTPUTS" ]; then
   # Generate a temporary contract with CI VPC outputs injected
-  TMP_CONTRACT="/tmp/acdl-lifecycle-${MODULE}-${EXAMPLE}.yml"
+  TMP_CONTRACT="/tmp/nova-lifecycle-${MODULE}-${EXAMPLE}.yml"
   python3 -c "
 import yaml, json, sys