feat: send local history to central API dashboard

- Add SmartHoneypotAPIClient::send_history_batch():
  reads local wp_honeypot_log in pages of 50, starting from
  hp_history_last_id option, sends to API, tracks progress
- Two new options: hp_history_last_id, hp_history_total_sent
- Action handlers: send_history (one batch), reset_history (start over)
- Settings tab: new 'Send History to API' section showing:
  * Local record count, sent count, remaining count
  * Progress bar (blue WP style)
  * 'Send History' / 'Send Next Batch' button with remaining count
  * 'Reset Progress' to re-send from beginning
  * Section only shown when API is enabled and URL is configured
- Notices: per-action feedback with 'Click Send Next Batch to continue'

honeypot-fields.php

@@ -217,6 +217,85 @@ class SmartHoneypotAPIClient {
         return ['ok' => true, 'message' => 'Connection verified. API is reachable and token is accepted.'];
     }
 
+    /**
+     * Sends one batch of existing local log records to the central API.
+     * Picks up from where it left off using the hp_history_last_id option.
+     *
+     * Returns ['ok', 'sent', 'remaining', 'has_more', 'message']
+     */
+    public static function send_history_batch(int $batch_size = 50): array {
+        $s = self::settings();
+        if (empty($s['api_url'])) {
+            return ['ok' => false, 'message' => 'No API URL configured.'];
+        }
+
+        global $wpdb;
+        $table   = SmartHoneypotDB::table();
+        $last_id = (int) get_option('hp_history_last_id', 0);
+        $total   = SmartHoneypotDB::count();
+
+        $rows = $wpdb->get_results(
+            $wpdb->prepare(
+                "SELECT * FROM {$table} WHERE id > %d ORDER BY id ASC LIMIT %d",
+                $last_id, $batch_size
+            ),
+            ARRAY_A
+        );
+
+        if (empty($rows)) {
+            return ['ok' => true, 'sent' => 0, 'remaining' => 0, 'has_more' => false,
+                    'message' => 'All records have already been sent.'];
+        }
+
+        $blocks = array_map(fn($r) => [
+            'ip'         => $r['ip_address'],
+            'form_type'  => $r['form_type'],
+            'reason'     => $r['reason'],
+            'user_agent' => $r['user_agent'],
+            'blocked_at' => $r['blocked_at'],
+        ], $rows);
+
+        $headers = ['Content-Type' => 'application/json'];
+        if (!empty($s['api_token'])) {
+            $headers['Authorization'] = 'Bearer ' . $s['api_token'];
+        }
+
+        $response = wp_remote_post(
+            trailingslashit(esc_url_raw($s['api_url'])) . 'api/v1/submit',
+            [
+                'timeout' => 30,
+                'headers' => $headers,
+                'body'    => wp_json_encode([
+                    'site_hash' => hash('sha256', home_url()),
+                    'blocks'    => $blocks,
+                ]),
+            ]
+        );
+
+        if (is_wp_error($response)) {
+            return ['ok' => false, 'message' => 'Request failed: ' . $response->get_error_message()];
+        }
+        $code = wp_remote_retrieve_response_code($response);
+        if ($code !== 200) {
+            return ['ok' => false, 'message' => "API returned HTTP {$code}. Check connection settings."];
+        }
+
+        $new_last_id = (int) end($rows)['id'];
+        $sent_total  = (int) get_option('hp_history_total_sent', 0) + count($rows);
+        update_option('hp_history_last_id',    $new_last_id);
+        update_option('hp_history_total_sent', $sent_total);
+
+        $remaining = max(0, $total - $sent_total);
+
+        return [
+            'ok'        => true,
+            'sent'      => count($rows),
+            'remaining' => $remaining,
+            'has_more'  => $remaining > 0,
+            'message'   => sprintf('Sent %d records. %d remaining.', count($rows), $remaining),
+        ];
+    }
+
     public static function settings(): array {
         return wp_parse_args(get_option(self::OPT_SETTINGS, []), self::defaults());
     }
@@ -399,6 +478,20 @@ class SmartHoneypotAdmin {
             wp_redirect(add_query_arg(['page' => self::MENU_SLUG, 'tab' => 'settings', 'flushed' => 1], admin_url('admin.php')));
             exit;
         }
+
+        if ($_POST['hp_action'] === 'send_history') {
+            $result = SmartHoneypotAPIClient::send_history_batch();
+            set_transient('hp_history_result', $result, 60);
+            wp_redirect(add_query_arg(['page' => self::MENU_SLUG, 'tab' => 'settings', 'history' => 1], admin_url('admin.php')));
+            exit;
+        }
+
+        if ($_POST['hp_action'] === 'reset_history') {
+            delete_option('hp_history_last_id');
+            delete_option('hp_history_total_sent');
+            wp_redirect(add_query_arg(['page' => self::MENU_SLUG, 'tab' => 'settings', 'history_reset' => 1], admin_url('admin.php')));
+            exit;
+        }
     }
 
     public static function render_page() {
@@ -427,6 +520,22 @@ class SmartHoneypotAdmin {
                     <div class="notice <?= $cls ?> is-dismissible"><p><?= esc_html($res['message']) ?></p></div>
                 <?php endif;
             endif; ?>
+            <?php if (!empty($_GET['history'])):
+                $res = get_transient('hp_history_result');
+                if ($res):
+                    $cls = $res['ok'] ? 'notice-success' : 'notice-error'; ?>
+                    <div class="notice <?= $cls ?> is-dismissible">
+                        <p><?= esc_html($res['message']) ?>
+                        <?php if (!empty($res['has_more'])): ?>
+                            &nbsp;<strong>Click "Send Next Batch" to continue.</strong>
+                        <?php endif; ?>
+                        </p>
+                    </div>
+                <?php endif;
+            endif; ?>
+            <?php if (!empty($_GET['history_reset'])): ?>
+                <div class="notice notice-info is-dismissible"><p>History sync progress has been reset. You can re-send from the beginning.</p></div>
+            <?php endif; ?>
 
             <nav class="nav-tab-wrapper hp-tabs">
                 <a href="<?= esc_url(admin_url('admin.php?page=' . self::MENU_SLUG . '&tab=logs')) ?>"
@@ -667,6 +776,65 @@ class SmartHoneypotAdmin {
                 </form>
                 <?php endif; ?>
             </div>
+
+            <?php if ($s['api_url'] && $s['enabled']): ?>
+            <hr>
+            <h3>Send History to API</h3>
+            <p style="color:#646970;margin-bottom:12px">
+                Populate the central dashboard with your existing log so the charts and stats are meaningful right away,
+                without waiting for new attacks. Records are sent in batches of 50.
+            </p>
+            <?php
+            $local_total  = SmartHoneypotDB::count();
+            $history_sent = (int) get_option('hp_history_total_sent', 0);
+            $remaining    = max(0, $local_total - $history_sent);
+            $pct          = $local_total > 0 ? min(100, round($history_sent / $local_total * 100)) : 0;
+            ?>
+            <table class="form-table">
+                <tr>
+                    <th>Local Log</th>
+                    <td><?= number_format($local_total) ?> records in this site's database</td>
+                </tr>
+                <tr>
+                    <th>Sent to API</th>
+                    <td>
+                        <?= number_format($history_sent) ?> records (<?= $pct ?>%)
+                        <?php if ($local_total > 0): ?>
+                        <div style="margin-top:6px;background:#f0f0f1;border-radius:3px;height:8px;max-width:300px">
+                            <div style="background:#2271b1;height:100%;border-radius:3px;width:<?= $pct ?>%;transition:width .4s"></div>
+                        </div>
+                        <?php endif; ?>
+                    </td>
+                </tr>
+                <tr>
+                    <th>Remaining</th>
+                    <td><?= number_format($remaining) ?> records not yet sent</td>
+                </tr>
+            </table>
+
+            <div style="display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;align-items:center">
+                <?php if ($remaining > 0): ?>
+                <form method="post">
+                    <?php wp_nonce_field(self::NONCE_ACTION); ?>
+                    <input type="hidden" name="hp_action" value="send_history">
+                    <button type="submit" class="button button-secondary">
+                        <?= $history_sent === 0 ? 'Send History' : 'Send Next Batch' ?>
+                        (<?= min(50, $remaining) ?> of <?= number_format($remaining) ?> remaining)
+                    </button>
+                </form>
+                <?php else: ?>
+                    <span style="color:#00a32a;font-weight:600">✓ All history sent</span>
+                <?php endif; ?>
+                <?php if ($history_sent > 0): ?>
+                <form method="post" onsubmit="return confirm('Reset history sync progress? This allows re-sending all records from the beginning.')">
+                    <?php wp_nonce_field(self::NONCE_ACTION); ?>
+                    <input type="hidden" name="hp_action" value="reset_history">
+                    <button type="submit" class="button">Reset Progress</button>
+                </form>
+                <?php endif; ?>
+            </div>
+            <?php endif; ?>
+
         </div>
         <?php
     }