PR Vision v0.1.1: rename from peptide-geo-monitor + P2 fixes

- Exhaustive rename: PGM_ -> PRV_, pgm_ -> prv_, text domain and
  slug peptide-geo-monitor -> pr-vision, admin menu GEO Monitor ->
  PR Vision, main file peptide-geo-monitor.php -> pr-vision.php,
  DB table pgm_ai_visibility -> prv_ai_visibility.
- P2-A: replace ltrim($host,'www.') character-mask with
  str_starts_with/substr prefix strip in PRV_Citation_Detector.
  Adds test coverage for wikipedia.org, webmd.com survival.
- P2-B: drop continue-on-error: true from PHPCS CI step;
  WordPress Coding Standards now gates the build.
- P2-C: remove dead in-run cache from PRV_Probe_Runner::run();
  each (peptide, intent, model) triplet is visited once per run,
  cache hit is structurally impossible.
- Version bump 0.1.0 -> 0.1.1 + CHANGELOG [0.1.1] entry.

Agent-Session: pr-vision rename v0.1.1

pr-vision.php

@@ -0,0 +1,68 @@
+<?php
+/**
+ * Plugin Name: PR Vision
+ * Plugin URI:  https://peptiderepo.com
+ * Description: Weekly server-side LLM probes for AI-visibility (GEO) tracking. Records whether peptiderepo.com is cited by LLMs across core peptides, stores time-series, and renders an admin trendline + standings table.
+ * Version:     0.1.1
+ * Author:      peptiderepo
+ * Author URI:  https://peptiderepo.com
+ * License:     GPL-2.0-or-later
+ * Text Domain: pr-vision
+ * Requires PHP: 8.1
+ *
+ * @see ARCHITECTURE.md — Full data flow and file tree.
+ * @see CONVENTIONS.md  — Naming patterns and extension guide.
+ * @see CONTEXT.md      — Domain glossary incl. the visibility score formula.
+ */
+
+declare(strict_types=1);
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/* ── Constants ────────────────────────────────────────────────────────── */
+
+define( 'PRV_VERSION', '0.1.1' );
+define( 'PRV_PLUGIN_FILE', __FILE__ );
+define( 'PRV_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
+define( 'PRV_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
+define( 'PRV_SCHEMA_VERSION', 1 );
+
+/** @var int Maximum HTTP retries for LLM API calls. */
+define( 'PRV_MAX_RETRIES', 3 );
+
+/** @var int API request timeout in seconds. */
+define( 'PRV_API_TIMEOUT_SECONDS', 60 );
+
+/** @var int Base backoff delay (seconds) between retries. */
+define( 'PRV_RETRY_BASE_DELAY_SECONDS', 2 );
+
+/** @var float Default monthly budget cap in USD. */
+define( 'PRV_DEFAULT_MONTHLY_BUDGET_USD', 5.0 );
+
+/** @var string WP-Cron hook name for the weekly probe run. */
+define( 'PRV_CRON_HOOK', 'prv_weekly_probe' );
+
+/** @var string The site we are tracking citations for. */
+define( 'PRV_TARGET_DOMAIN', 'peptiderepo.com' );
+
+/* ── Autoloader ───────────────────────────────────────────────────────── */
+
+require_once PRV_PLUGIN_DIR . 'includes/core/class-prv-autoloader.php';
+PRV_Autoloader::register();
+
+/* ── Activation / Deactivation ────────────────────────────────────────── */
+
+register_activation_hook( __FILE__, array( 'PRV_Activator', 'activate' ) );
+register_deactivation_hook( __FILE__, array( 'PRV_Deactivator', 'deactivate' ) );
+
+/* ── Boot ──────────────────────────────────────────────────────────────── */
+
+add_action(
+	'plugins_loaded',
+	static function (): void {
+		$plugin = new PRV_Plugin();
+		$plugin->init();
+	}
+);