chore: wp.org submission prep — v0.1.3

Rebrand to RangerHQ Buddy and prepare for the WordPress.org Plugin
Directory. Same workflow as rangerhq-radio v0.7.0 → v0.7.5.

Changes:
- Plugin Name: Buddy → RangerHQ Buddy (matches family naming)
- Plugin URI: icanhelp.ie/buddy → davidtkeane.com/rangerhq-buddy
- Author URI: rangersmyth.xyz → davidtkeane.com
- Text Domain: buddy → rangerhq-buddy (62 occurrences across 8 PHP files)
- Add LICENSE file (full GPL v2 text from gnu.org)
- Add wp.org-format readme.txt with all 8 required headers
- Remove inc/updater.php (self-hosted Gitea updater forbidden for
  wp.org-hosted plugins per the rangerhq-radio v0.7.3 walkback)
- Replace mt_rand with wp_rand in inc/state.php for better RNG
- Add 5 translator comments for printf-style i18n placeholders
- Wrap 2 dashboard-widget.php printf placeholders in (int) casts
- Add tests/ to .gitignore (PCP reports are local-only)

PCP audit: 85 issues → ~1 (the .gitignore file itself, stripped from
the submission zip).
Plugin Check Namer Tool: "Generally Allowable" verdict on both name
and slug.
Plugin URI https://davidtkeane.com/rangerhq-buddy/ returns HTTP 200.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

buddy.php

@@ -2,17 +2,17 @@
 /**
  * Buddy — a friendly pet for your WordPress dashboard
  *
- * Plugin Name: Buddy
- * Plugin URI:  https://icanhelp.ie/buddy
+ * Plugin Name: RangerHQ Buddy
+ * Plugin URI:  https://davidtkeane.com/rangerhq-buddy
  * Description: Adopt a small companion that lives in your WordPress dashboard. Its mood reflects your site's health — published posts feed it, outdated plugins make it sick, clearing spam makes it happy. Gamifies WordPress maintenance with a bit of charm.
  * Version:     0.1.3
  * Requires at least: 5.0
  * Requires PHP: 7.4
  * Author:      David Keane
- * Author URI:  https://rangersmyth.xyz/
+ * Author URI:  https://davidtkeane.com
  * License:     GPL v2 or later
  * License URI: https://www.gnu.org/licenses/gpl-2.0.html
- * Text Domain: buddy
+ * Text Domain: rangerhq-buddy
  *
  * @package Buddy
  */
@@ -33,7 +33,6 @@ require_once BUDDY_PATH . 'inc/dashboard-widget.php'; // the pet on WP Dashboard
 require_once BUDDY_PATH . 'inc/admin-page.php';       // dedicated Buddy admin page
 require_once BUDDY_PATH . 'inc/about.php';            // About page
 require_once BUDDY_PATH . 'inc/settings.php';         // Settings page
-require_once BUDDY_PATH . 'inc/updater.php';          // self-hosted update checker against Gitea
 
 /**
  * Admin menu registration. Buddy gets its own top-level menu — the pet
@@ -44,8 +43,8 @@ require_once BUDDY_PATH . 'inc/updater.php';          // self-hosted update chec
 add_action( 'admin_menu', 'buddy_register_admin_menu' );
 function buddy_register_admin_menu() {
     add_menu_page(
-        __( 'Buddy', 'buddy' ),
-        __( 'Buddy', 'buddy' ),
+        __( 'Buddy', 'rangerhq-buddy' ),
+        __( 'Buddy', 'rangerhq-buddy' ),
         'read',                       // any logged-in user with read access can see their own pet
         'buddy',
         'buddy_render_main_page',
@@ -59,8 +58,8 @@ function buddy_register_admin_menu() {
     // form bug).
     add_submenu_page(
         'buddy',
-        __( 'My Buddy', 'buddy' ),
-        __( 'My Buddy', 'buddy' ),
+        __( 'My Buddy', 'rangerhq-buddy' ),
+        __( 'My Buddy', 'rangerhq-buddy' ),
         'read',
         'buddy',
         ''
@@ -68,8 +67,8 @@ function buddy_register_admin_menu() {
 
     add_submenu_page(
         'buddy',
-        __( 'Settings', 'buddy' ),
-        __( 'Settings', 'buddy' ),
+        __( 'Settings', 'rangerhq-buddy' ),
+        __( 'Settings', 'rangerhq-buddy' ),
         'manage_options',
         'buddy-settings',
         'buddy_render_settings_page'
@@ -77,8 +76,8 @@ function buddy_register_admin_menu() {
 
     add_submenu_page(
         'buddy',
-        __( 'About', 'buddy' ),
-        __( 'About', 'buddy' ),
+        __( 'About', 'rangerhq-buddy' ),
+        __( 'About', 'rangerhq-buddy' ),
         'read',
         'buddy-about',
         'buddy_render_about_page'