refactor: remove 13 dead code artifacts across core/

Dead methods (9):
- Command::bootstrapModuleApp() — unused by all subclasses
- SearchConfig::providerCoverageGaps() — diagnostic method, never called
- RequestInput::queryArray() — no callers
- LocaleResolver::getAvailableLocales() / getDefaultLocale() — unused getters
- EmailVerificationService::getExpiryMinutes() — constant wrapper, never called
- AuthService::loginAndRedirect() — convenience wrapper, never called
- DepartmentService::listForUserAssignments() — no callers
- UserTenantContextService::getAvailableDepartmentsByTenant() — no callers

Dead functions (3):
- navActivePublicPages(), appNormalizeStringList(), appNormalizePositiveIntList()

Dead constant (1):
- PermissionService::API_DOCS_VIEW — duplicated via other paths

Orphaned file (1):
- bin/cli-bootstrap.php — never included anywhere

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/Service/User/UserTenantContextService.php

@@ -132,48 +132,6 @@ class UserTenantContextService
         return $tenants;
     }
 
-    /**
-     * Get available departments grouped by tenant for a user.
-     * Returns an array of groups: ['tenant' => [...], 'departments' => [...]]
-     */
-    public function getAvailableDepartmentsByTenant(int $userId): array
-    {
-        $tenants = $this->getAvailableTenants($userId);
-        if (!$tenants) {
-            return [];
-        }
-
-        $groups = [];
-        foreach ($tenants as $tenant) {
-            $tenantId = (int) ($tenant['id'] ?? 0);
-            if ($tenantId <= 0) {
-                continue;
-            }
-            $departments = $this->directoryGateway->listDepartmentsByTenantIds([$tenantId]);
-            usort($departments, static function ($a, $b) {
-                return strcmp((string) ($a['description'] ?? ''), (string) ($b['description'] ?? ''));
-            });
-            $departments = array_map(static function (array $department): array {
-                return [
-                    'id' => (int) ($department['id'] ?? 0),
-                    'uuid' => $department['uuid'] ?? '',
-                    'description' => $department['description'] ?? '',
-                ];
-            }, $departments);
-
-            $groups[] = [
-                'tenant' => [
-                    'id' => (int) ($tenant['id'] ?? 0),
-                    'uuid' => $tenant['uuid'] ?? '',
-                    'description' => $tenant['description'] ?? '',
-                ],
-                'departments' => $departments,
-            ];
-        }
-
-        return $groups;
-    }
-
     /**
      * Set the current tenant for a user (with validation)
      */