feat: initial InformatiQ Toolkit plugin

Merges informatiq-wp-secure + informatiq-utils + HoneypotFields into
a single unified plugin with the following improvements:

- Fixed deactivation bug: all protection methods now guard themselves
  with their own option check so toggling off via AJAX takes effect
  immediately without any hook re-registration.
- Added rate-limiting for good/legitimate bots (Googlebot, Bingbot,
  DuckDuckBot, Yandex, etc.) via transient sliding-window counters;
  configurable per-bot limits in goodbots.conf (BotName|req/min);
  returns HTTP 429 with Retry-After: 60 when over limit.
- Unified MySQL-backed logging (itk_bot_log + itk_honeypot_log tables)
  replaces the old wp_options-based 100-entry cap.
- New Dashboard tab with terminal-style bot activity monitor: total
  blocked, today's count, rate-limited hits, top threat sources
  (bar chart), top IPs, top honeypot form types, active-module
  status panel.
- All optimizations from utils.php merged into Optimization tab as
  toggleable settings (was always-on before).
- Single admin page (Settings → InformatiQ Toolkit) with 8 tabs:
  Dashboard | Bot Blocker | Protection | Optimization | Honeypot |
  Bot Logs | Honeypot Logs | Config Files.
- Config file editor for badbots.conf, goodbots.conf, referrers.conf,
  networks.conf, allowed-ips.conf with AJAX save and transient flush.

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

assets/js/admin.js

@@ -0,0 +1,79 @@
+/* InformatiQ Toolkit – Admin JS */
+(function ($) {
+    'use strict';
+
+    /* ── Toggle switches (AJAX) ───────────────────────────────── */
+    $(document).on('change', '.itk-toggle-input', function () {
+        var $input   = $(this);
+        var $row     = $input.closest('.itk-toggle-row');
+        var option   = $input.data('option');
+        var setting  = $input.data('setting');
+        var value    = $input.is(':checked') ? 1 : 0;
+
+        $row.addClass('itk-toggle-saving');
+
+        $.post(itkAdmin.ajaxUrl, {
+            action:  'itk_save_setting',
+            nonce:   itkAdmin.nonce,
+            option:  option,
+            setting: setting,
+            value:   value
+        })
+        .done(function (res) {
+            if (res.success) {
+                showFeedback($row, 'itk-toggle-saved', 'Saved');
+            } else {
+                $input.prop('checked', !$input.is(':checked')); // revert
+                showFeedback($row, 'itk-toggle-error', 'Error saving');
+            }
+        })
+        .fail(function () {
+            $input.prop('checked', !$input.is(':checked'));
+            showFeedback($row, 'itk-toggle-error', 'Request failed');
+        })
+        .always(function () {
+            $row.removeClass('itk-toggle-saving');
+        });
+    });
+
+    function showFeedback($row, cls, msg) {
+        $row.find('.itk-feedback').remove();
+        var $fb = $('<span class="itk-feedback ' + cls + '">' + msg + '</span>');
+        $row.append($fb);
+        setTimeout(function () { $fb.fadeOut(400, function () { $(this).remove(); }); }, 2000);
+    }
+
+    /* ── Config file editor (AJAX) ────────────────────────────── */
+    $('#itk-save-config').on('click', function (e) {
+        e.preventDefault();
+        var $btn    = $(this);
+        var file    = $btn.data('file');
+        var content = $('#itk-config-content').val();
+        var $status = $('#itk-config-status');
+
+        $btn.prop('disabled', true).text('Saving…');
+        $status.hide();
+
+        $.post(itkAdmin.ajaxUrl, {
+            action:  'itk_save_config_file',
+            nonce:   itkAdmin.nonce,
+            file:    file,
+            content: content
+        })
+        .done(function (res) {
+            if (res.success) {
+                $status.text('Saved!').css('color', '#00a32a').show();
+            } else {
+                $status.text('Error: ' + (res.data || 'unknown')).css('color', '#b32d2e').show();
+            }
+        })
+        .fail(function () {
+            $status.text('Request failed.').css('color', '#b32d2e').show();
+        })
+        .always(function () {
+            $btn.prop('disabled', false).text('Save File');
+            setTimeout(function () { $status.fadeOut(); }, 3000);
+        });
+    });
+
+})(jQuery);