Rebrand visible PHPeek strings to Cbox

Cosmetic but user-facing — these strings appear in:
* /etc/nginx/conf.d/default.conf header (visible via `nginx -T`
  inside any pod that runs this base image)
* ImageMagick policy file headers (php-base + php-fpm-nginx)
* test verify-features.php section headings
* test fixture artisan-stub comment
* LICENSE copyright holder

LICENSE bumped to 'Cbox 2024-2026' with an explicit fork-history
note pointing back at gophpeek/phpeek-pm so the upstream MIT
attribution is preserved correctly.

NOT touched in this commit (deeper rebrand, separate effort):
* go.mod module path 'github.com/gophpeek/phpeek-pm' — renaming
  requires updating every internal import and may break the
  release-tag download URLs the cbox-init binary fetches.
* scripts/update-versions.sh fetches cbox-init releases from
  the upstream gophpeek/phpeek-pm repo. The cbox-init binary
  itself is upstream's; rebranding it requires forking +
  publishing a Cbox-owned binary, or accepting the upstream
  origin and just renaming our usage label.

For the user-facing nginx/IM/license bits this commit is enough.

Author: sylvesterdamgaard

LICENSE

@@ -1,6 +1,11 @@
 MIT License
 
-Copyright (c) 2024 PHPeek
+Copyright (c) 2024-2026 Cbox
+
+This project began as a fork of gophpeek/phpeek-pm and retains the
+upstream MIT license. Significant Cbox-specific changes have been
+contributed since the fork; the cbox-init binary is still pulled
+from the upstream phpeek-pm releases.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

php-base/common/imagemagick-policy.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  PHPeek Base Image - ImageMagick Security Policy
+  Cbox Base Image - ImageMagick Security Policy
   Prevents common ImageMagick vulnerabilities:
   - SVG XXE attacks
   - PDF ghostscript vulnerabilities

php-fpm-nginx/common/default.conf.template

@@ -1,5 +1,5 @@
 # ╔═══════════════════════════════════════════════════════════════════════════╗
-# ║  PHPeek Base Image - Nginx Configuration Template                          ║
+# ║  Cbox Base Image - Nginx Configuration Template                          ║
 # ║  Production-ready with security hardening                                  ║
 # ║  Variables substituted by envsubst at container startup                    ║
 # ╚═══════════════════════════════════════════════════════════════════════════╝

php-fpm-nginx/common/imagemagick-policy.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  PHPeek Base Image - ImageMagick Security Policy
+  Cbox Base Image - ImageMagick Security Policy
   Prevents common ImageMagick vulnerabilities:
   - SVG XXE attacks
   - PDF ghostscript vulnerabilities

tests/e2e/fixtures/laravel/app/artisan

@@ -2,7 +2,7 @@
 <?php
 /**
  * Minimal artisan stub for framework detection testing
- * PHPeek entrypoint detects Laravel by checking for this file
+ * cbox-init entrypoint detects Laravel by checking for this file
  */
 
 $command = $argv[1] ?? 'help';

tests/verify-features.php

@@ -104,7 +104,7 @@ function test($condition, $success, $failure) {
 test(strpos($composerVersion, "Composer") !== false, substr($composerVersion, 0, 50), "Composer NOT working");
 
 // === 8. Cbox Init ===
-echo "\n═══ 8. PHPEEK PM ═══\n";
+echo "\n═══ 8. CBOX INIT ═══\n";
 $pmVersion = trim(shell_exec("/usr/local/bin/cbox-pm --version 2>&1") ?? "");
 test(strpos($pmVersion, "cbox-pm") !== false || preg_match("/\d+\.\d+/", $pmVersion), "Cbox Init: $pmVersion", "Cbox Init NOT working: $pmVersion");