feat(127): erli integration foundation

Phase 127 complete:

- add global Erli settings schema and encrypted API key repository

- add real read-only Erli API connection test and settings UI

- expose Erli in integrations hub and update PAUL/docs state

resources/views/settings/erli.php

@@ -0,0 +1,95 @@
+<?php
+$settings = is_array($settings ?? null) ? $settings : [];
+$accountLabel = trim((string) ($settings['account_label'] ?? ''));
+$hasApiKey = (bool) ($settings['has_api_key'] ?? false);
+$isActive = (bool) ($settings['is_active'] ?? true);
+$lastTestAt = trim((string) ($settings['last_test_at'] ?? ''));
+$lastTestStatus = trim((string) ($settings['last_test_status'] ?? ''));
+$lastTestMessage = trim((string) ($settings['last_test_message'] ?? ''));
+$lastTestHttpCode = $settings['last_test_http_code'] ?? null;
+?>
+
+<section class="card">
+  <h2 class="section-title"><?= $e($t('settings.erli.title')) ?></h2>
+  <p class="muted mt-12"><?= $e($t('settings.erli.description')) ?></p>
+
+  <?php if (!empty($errorMessage)): ?>
+    <div class="mt-12"><?php $type='danger'; $message=(string) $errorMessage; $dismissible=true; include dirname(__DIR__) . '/components/alert.php'; ?></div>
+  <?php endif; ?>
+
+  <?php if (!empty($successMessage)): ?>
+    <div class="mt-12"><?php $type='success'; $message=(string) $successMessage; $dismissible=true; include dirname(__DIR__) . '/components/alert.php'; ?></div>
+  <?php endif; ?>
+
+  <?php if (!empty($testMessage)): ?>
+    <div class="mt-12"><?php $type='info'; $message=(string) $testMessage; $dismissible=true; include dirname(__DIR__) . '/components/alert.php'; ?></div>
+  <?php endif; ?>
+</section>
+
+<section class="card mt-16">
+  <h3 class="section-title"><?= $e($t('settings.erli.config.title')) ?></h3>
+
+  <div class="muted mt-12">
+    <?= $e($t('settings.erli.status.secret')) ?>:
+    <strong><?= $e($hasApiKey ? $t('settings.erli.status.saved') : $t('settings.erli.status.missing')) ?></strong>
+    |
+    <?= $e($t('settings.erli.status.active')) ?>:
+    <strong><?= $e($isActive ? $t('settings.integrations_hub.active.yes') : $t('settings.integrations_hub.active.no')) ?></strong>
+  </div>
+
+  <form class="statuses-form mt-16" action="/settings/integrations/erli/save" method="post" novalidate>
+    <input type="hidden" name="_token" value="<?= $e($csrfToken ?? '') ?>">
+
+    <label class="form-field">
+      <span class="field-label"><?= $e($t('settings.erli.fields.account_label')) ?></span>
+      <input class="form-control" type="text" name="account_label" maxlength="128" value="<?= $e($accountLabel) ?>">
+      <span class="muted"><?= $e($t('settings.erli.hints.account_label')) ?></span>
+    </label>
+
+    <label class="form-field">
+      <span class="field-label"><?= $e($t('settings.erli.fields.api_key')) ?></span>
+      <input class="form-control" type="password" name="api_key" autocomplete="new-password" placeholder="<?= $hasApiKey ? '********' : '' ?>">
+      <span class="muted"><?= $e($hasApiKey ? $t('settings.erli.api_key.saved') : $t('settings.erli.api_key.missing')) ?></span>
+    </label>
+
+    <fieldset class="integration-settings-checkboxes">
+      <legend class="field-label"><?= $e($t('settings.erli.fields.options')) ?></legend>
+      <div class="integration-settings-checkboxes__list">
+        <label class="integration-settings-checkboxes__item">
+          <input type="checkbox" name="is_active" value="1"<?= $isActive ? ' checked' : '' ?>>
+          <span><?= $e($t('settings.erli.fields.is_active')) ?></span>
+        </label>
+      </div>
+    </fieldset>
+
+    <div class="form-actions mt-16">
+      <button type="submit" class="btn btn--primary"><?= $e($t('settings.erli.actions.save')) ?></button>
+    </div>
+  </form>
+</section>
+
+<section class="card mt-16">
+  <h3 class="section-title"><?= $e($t('settings.erli.test.title')) ?></h3>
+  <p class="muted mt-12"><?= $e($t('settings.erli.test.description')) ?></p>
+
+  <form class="statuses-form mt-16" action="/settings/integrations/erli/test" method="post">
+    <input type="hidden" name="_token" value="<?= $e($csrfToken ?? '') ?>">
+    <div class="form-actions">
+      <button type="submit" class="btn btn--secondary"><?= $e($t('settings.erli.actions.test')) ?></button>
+    </div>
+  </form>
+
+  <?php if ($lastTestAt !== ''): ?>
+    <div class="mt-16"><?php
+      $type = $lastTestStatus === 'ok' ? 'success' : 'danger';
+      $messageHtml = '<strong>' . $e($t('settings.erli.status.last_test')) . ':</strong> '
+        . $e($lastTestAt)
+        . ($lastTestStatus !== '' ? ' <span class="badge badge--' . ($lastTestStatus === 'ok' ? 'success' : 'muted') . '">' . $e(strtoupper($lastTestStatus)) . '</span>' : '')
+        . ($lastTestHttpCode !== null ? ' <span class="badge badge--muted">HTTP ' . $e((string) $lastTestHttpCode) . '</span>' : '')
+        . ($lastTestMessage !== '' ? '<div class="mt-12">' . $e($lastTestMessage) . '</div>' : '');
+      $dismissible = false;
+      include dirname(__DIR__) . '/components/alert.php';
+      unset($messageHtml);
+    ?></div>
+  <?php endif; ?>
+</section>