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---

.github/workflows/deploy.yml

@@ -26,7 +26,7 @@
 #      platform log) for auditability.
 #
 # Inputs:
-#   contract  — path to the consumer's contract YAML (default .acdl/contract.yml)
+#   contract  — path to the consumer's contract YAML (default .nova/contract.yml)
 #   mode      — full | plan-only | check-only (default full; dev = full apply,
 #               higher environments hold for HITL — the calling repo or the
 #               forge environment gate enforces that)
@@ -39,7 +39,7 @@
 #   policy restricts view/update to resources tagged acdl:owner=<consumer-repo>.
 #
 #   Override (where OIDC is unavailable, e.g. Gitea pending
-#   go-gitea/gitea#36988): set ACDL_AWS_ACCESS_KEY_ID + ACDL_AWS_SECRET_ACCESS_KEY
+#   go-gitea/gitea#36988): set NOVA_AWS_ACCESS_KEY_ID + NOVA_AWS_SECRET_ACCESS_KEY
 #   as repository secrets. The platform-managed scheduled pipeline rotates
 #   the key on a daily cadence. When .env.secrets is used locally instead,
 #   rotating the key out of band is the consumer's responsibility.
@@ -51,7 +51,7 @@ on:
       contract:
         description: Path to the consumer contract YAML (in the consumer repo)
         type: string
-        default: .acdl/contract.yml
+        default: .nova/contract.yml
       mode:
         description: Pipeline mode — full (apply), plan-only, check-only, or decommission
         type: string
@@ -102,10 +102,14 @@ jobs:
       - name: Configure AWS credentials (OIDC default + static-key override)
         uses: aws-actions/configure-aws-credentials@v4
         with:
-          role-to-assume: ${{ secrets.ACDL_AWS_ACCESS_KEY_ID == '' && format('arn:aws:iam::{0}:role/acdl-deploy-{1}', secrets.ACDL_AWS_ACCOUNT_ID, github.repository_id) || '' }}
+          # TODO(P4, REQ-163): rename the IAM role acdl-deploy- → nova-deploy-.
+          # The role ARN string is left as acdl-deploy- until P4 (IAM role
+          # rename territory); only the secret REFERENCES are updated to
+          # NOVA_* in P2 (G-108 binding).
+          role-to-assume: ${{ secrets.NOVA_AWS_ACCESS_KEY_ID == '' && format('arn:aws:iam::{0}:role/acdl-deploy-{1}', secrets.NOVA_AWS_ACCOUNT_ID, github.repository_id) || '' }}
           aws-region: us-east-1
-          access-key-id: ${{ secrets.ACDL_AWS_ACCESS_KEY_ID }}
-          secret-access-key: ${{ secrets.ACDL_AWS_SECRET_ACCESS_KEY }}
+          access-key-id: ${{ secrets.NOVA_AWS_ACCESS_KEY_ID }}
+          secret-access-key: ${{ secrets.NOVA_AWS_SECRET_ACCESS_KEY }}
 
       - name: Run the platform pipeline
         working-directory: ${{ github.workspace }}
@@ -145,7 +149,7 @@ jobs:
           AWS_DEFAULT_REGION: us-east-1
         run: |
           aws lambda invoke-function-url \
-            --function-url "${{ secrets.ACDL_LAMBDA_URL }}" \
+            --function-url "${{ secrets.NOVA_LAMBDA_URL }}" \
             --cli-binary-format raw-in-base64-out \
             --payload "$(python3 -c "import json,os; print(json.dumps({'action':'report_error','consumerRepo':os.environ.get('GITHUB_REPOSITORY',''),'contractId':'${{ github.run_id }}','error':'Deploy pipeline failed. See run logs.','runUrl':'${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}','environment':'dev'}))")" \
             /dev/null || true