feat(user-lifecycle): cockpit foundation — KPI row + aside quick actions

Phase 1 of the Stripe-style policy-cockpit redesign for the user-lifecycle
settings page. Pure server-rendering — no async, no JS components, no
sparklines yet (those land in later phases).

Adds a four-tile KPI row above the configuration form (Last run,
Deactivated/30d, Deleted/30d, Pending deletion/7d), populates the
previously empty aside with three quick actions (Run policy now,
Purge logs, Policy reference link), and surfaces a relative-time +
status hint under the existing Run-Now collapsible.

Module-isolation is preserved through a new read-side contract:

* core/Service/Audit/UserLifecycleAuditDashboardInterface — read-only
  pendant to the existing write-side UserLifecycleAuditInterface.
  Methods: lastRun(), summaryByAction(int days), countActionInWindow(...).
* core/Service/Audit/NullUserLifecycleAuditDashboard — fail-closed
  default when the audit module is disabled. KPI tiles 1-3 then
  render "—"; tile 4 (pending deletion) keeps working because it
  lives in the core domain.
* modules/audit/.../Service/UserLifecycleAuditDashboardService — the
  module's implementation; reads through the existing
  UserLifecycleAuditRepository (extended with three new aggregation
  queries: lastRun, countByActionStatusSinceTimestamp, countSinceTimestamp).
* AuditContainerRegistrar binds the interface to the module impl;
  registerContainer.php registers the Null fallback before module
  bindings, mirroring how the write-side audit interface is wired.

The new core service UserLifecyclePolicyDashboardService computes
the pending-deletion-window count from the users table directly
(no audit dependency) — defensive when both policy days are 0
(returns 0 rather than running an unbounded query).

New shared template partial templates/partials/app-kpi-row.phtml is
generic — accepts a $kpiTiles array of {label, count, icon, iconTone,
href, tooltip} and reuses the existing app-tile primitive. Other
settings pages can pick it up without ceremony.

Includes:
* PHPUnit tests for both new services (happy path + Null-fallback +
  policy-disabled edge cases).
* AuditModuleIsolationContractTest allowlist extended for the new
  interface and module service.
* 14 new translation keys in both default_de.json and default_en.json
  (i18n parity verified).

All six quality gates green.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

core/App/Container/Registrars/UserRegistrar.php

@@ -7,6 +7,7 @@ use MintyPHP\App\Container\ContainerRegistrar;
 use MintyPHP\Repository\Access\UserRoleRepository;
 use MintyPHP\Repository\Org\UserDepartmentRepository;
 use MintyPHP\Repository\Tenant\UserTenantRepository;
+use MintyPHP\Repository\User\UserLifecyclePolicyDashboardRepository;
 use MintyPHP\Repository\User\UserReadRepository;
 use MintyPHP\Repository\User\UserWriteRepository;
 use MintyPHP\Service\Auth\TenantSsoService;
@@ -19,6 +20,7 @@ use MintyPHP\Service\User\UserApiWriteInputMapper;
 use MintyPHP\Service\User\UserAssignmentService;
 use MintyPHP\Service\User\UserAvatarService;
 use MintyPHP\Service\User\UserDirectoryGateway;
+use MintyPHP\Service\User\UserLifecyclePolicyDashboardService;
 use MintyPHP\Service\User\UserLifecycleRestoreService;
 use MintyPHP\Service\User\UserLifecycleService;
 use MintyPHP\Service\User\UserPasswordPolicyService;
@@ -61,6 +63,10 @@ final class UserRegistrar implements ContainerRegistrar
         $container->set(UserTenantRepository::class, static fn (AppContainer $c): UserTenantRepository => $c->get(UserRepositoryFactory::class)->createUserTenantRepository());
         $container->set(UserRoleRepository::class, static fn (AppContainer $c): UserRoleRepository => $c->get(UserRepositoryFactory::class)->createUserRoleRepository());
         $container->set(UserDepartmentRepository::class, static fn (AppContainer $c): UserDepartmentRepository => $c->get(UserRepositoryFactory::class)->createUserDepartmentRepository());
+        $container->set(UserLifecyclePolicyDashboardRepository::class, static fn (AppContainer $c): UserLifecyclePolicyDashboardRepository => $c->get(UserRepositoryFactory::class)->createUserLifecyclePolicyDashboardRepository());
+        $container->set(UserLifecyclePolicyDashboardService::class, static fn (AppContainer $c): UserLifecyclePolicyDashboardService => new UserLifecyclePolicyDashboardService(
+            $c->get(UserLifecyclePolicyDashboardRepository::class)
+        ));
         $container->set(UserProfileViewService::class, static fn (AppContainer $c): UserProfileViewService => new UserProfileViewService(
             $c->get(UserAccountService::class),
             $c->get(UserAssignmentService::class),