peptide-geo-monitor v0.1.0: internal AI-visibility dashboard (#1)

New internal plugin: weekly LLM probes of core peptides (Perplexity sonar + GPT/Gemini-search via OpenRouter/CF gateway) -> custom table -> wp-admin trendline + standings. Provider interface + cost ledger w/ hard $5/mo cap + collector/panel seam (AI-visibility only). v1 = AI-visibility only.

QA: APPROVE-WITH-P2-NOTES — qa-reviews/peptide-geo-monitor/2026-06-13-f488f4a966cbb9e771d3abc20daee3fa49074520.md (P2 follow-ups: ltrim www display bug, PHPCS mandatory, dead cache)

Agent-Session: geomonitor v0.1.0 merge

includes/core/class-pgm-deactivator.php

@@ -0,0 +1,29 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Plugin deactivation handler.
+ *
+ * Clears the scheduled WP-Cron event so probes stop running when the plugin
+ * is deactivated. Does NOT purge data — that is uninstall's job.
+ *
+ * Who triggers: register_deactivation_hook() in peptide-geo-monitor.php.
+ * Dependencies: PGM_Cron.
+ *
+ * @see class-pgm-cron.php      — Cron registration + clearing.
+ * @see uninstall.php           — Full data purge on uninstall.
+ * @package PeptideGeoMonitor
+ */
+class PGM_Deactivator {
+
+	/**
+	 * Clear the weekly cron schedule.
+	 *
+	 * Side effects: Removes the pgm_weekly_probe event from WP-Cron.
+	 *
+	 * @return void
+	 */
+	public static function deactivate(): void {
+		PGM_Cron::clear_schedule();
+	}
+}