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>

bin/cli-bootstrap.php

@@ -1,42 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-use MintyPHP\App\AppContainer;
-use MintyPHP\Http\RequestContext;
-
-/**
- * Shared app bootstrap for non-module CLI commands.
- */
-function cliBootstrapApp(string $channel = 'cli', string $path = 'bin/cli'): AppContainer
-{
-    static $booted = false;
-    /** @var AppContainer|null $container */
-    static $container = null;
-
-    if (!$booted) {
-        chdir(__DIR__ . '/..');
-        require_once 'vendor/autoload.php';
-        require_once 'config/config.php';
-        require_once 'core/Support/helpers.php';
-
-        /** @var AppContainer $resolved */
-        $resolved = require 'core/App/registerContainer.php';
-        setAppContainer($resolved);
-
-        $container = $resolved;
-        $booted = true;
-    }
-
-    RequestContext::start([
-        'channel' => $channel,
-        'method' => 'CLI',
-        'path' => $path,
-    ]);
-
-    if (!$container instanceof AppContainer) {
-        throw new RuntimeException('CLI app container bootstrap failed.');
-    }
-
-    return $container;
-}