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-plugin.php

@@ -0,0 +1,41 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Main orchestrator for the Peptide GEO Monitor plugin.
+ *
+ * Boots sub-systems in the correct order, hooks into WP, and keeps
+ * the top-level file under the 300-line limit by delegating all logic
+ * to specialist classes.
+ *
+ * Who triggers: plugins_loaded action (peptide-geo-monitor.php).
+ * Dependencies: PGM_Cron, PGM_Admin_Page, PGM_Collector_Registry.
+ *
+ * @see ARCHITECTURE.md — Boot sequence diagram.
+ * @package PeptideGeoMonitor
+ */
+class PGM_Plugin {
+
+	/**
+	 * Wire up all WordPress hooks.
+	 *
+	 * Side effects: Registers admin menus, enqueues assets, and registers the
+	 *               collector/panel registry.
+	 *
+	 * @return void
+	 */
+	public function init(): void {
+		$cron = new PGM_Cron();
+		$cron->register_hooks();
+
+		if ( is_admin() ) {
+			$page = new PGM_Admin_Page();
+			$page->register_hooks();
+		}
+
+		// Register the v1 AI-visibility collector + panel.
+		$registry = PGM_Collector_Registry::instance();
+		$registry->register_collector( new PGM_Ai_Visibility_Collector() );
+		$registry->register_panel( 'ai_visibility', new PGM_Ai_Visibility_Panel() );
+	}
+}