domain cutover: front doors + drone + per-run naming to ci.autonomic.zone

- acme-dns.nix: ONE dual-zone SAN cert (ci+*.ci.autonomic.zone AND ci+*.ci.commoninternet.net)
  via the same acmedns account — storage re-keyed by cc-ci-acme-storage-seed.service; handoff
  reads the new cert dir. Single secret pair => zero changes to the traefik reconciler.
- dashboard/bridge/reports: dual Host rules during the bake window (bridge gets explicit
  parentheses so && does not shadow the dashboard on the new host).
- drone abra app renamed to drone.ci.autonomic.zone (fresh DB supported: DRONE_USER_CREATE
  re-injects the sops bridge token); runner RPC + bootstrap-drone-oauth.sh follow.
- harness: app_domain() issues *.ci.autonomic.zone run domains; RUN_APP_RE / stack-name
  regexes / docker-prune accept BOTH zones during the bake. Warm stacks deliberately stay
  on the legacy zone (data-warm volumes; post-bake migration).
- URLs in bridge/dashboard defaults + recipe-report.py follow the new names.

tests/concurrency/concutil.py

@@ -15,7 +15,7 @@ sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "runner")
 from harness import lifecycle  # noqa: E402
 
 HELPERS = os.path.join(os.path.dirname(__file__), "helpers.py")
-DOMAIN = "test-abc123.ci.commoninternet.net"  # matches RUN_APP_RE
+DOMAIN = "test-abc123.ci.autonomic.zone"  # matches RUN_APP_RE
 
 
 class HelperPool:

tests/gitea/recipe_meta.py

@@ -72,7 +72,8 @@ def UPGRADE_SECRET_PREP(ctx):
     import subprocess
 
     # abra derives STACK_NAME from the domain by replacing dots with underscores
-    # (e.g. gite-e1cb78.ci.commoninternet.net → gite-e1cb78_ci_commoninternet_net).
+    # (e.g. gite-e1cb78.ci.autonomic.zone → gite-e1cb78_ci_autonomic_zone; legacy
+    # *.ci.commoninternet.net run stacks are matched too during the bake window).
     stack_name = ctx.domain.replace(".", "_")
     docker_secret = f"{stack_name}_lfs_jwt_secret_v1"
     value = base64.urlsafe_b64encode(_os.urandom(32)).rstrip(b"=").decode()