Use shipmonk/coding-standard (#124)

* Replace slevomat/coding-standard with shipmonk/coding-standard

- Remove slevomat/coding-standard dependency
- Add shipmonk/coding-standard dependency
- Update phpcs.xml.dist to use ShipMonkCodingStandard ruleset
- Preserve existing file paths and cache configuration

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* Apply coding standard fixes

Fixed 8 coding standard violations across 5 files using composer fix:cs.
All files now pass composer check:cs validation.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: JanTvrdik

composer-dependency-analyser.php

@@ -11,10 +11,10 @@
     'phpstan/phpstan',
     'phpstan/phpstan-phpunit',
     'phpstan/phpstan-strict-rules',
+    'shipmonk/coding-standard',
     'shipmonk/composer-dependency-analyser',
     'shipmonk/dead-code-detector',
     'shipmonk/phpstan-rules',
-    'slevomat/coding-standard',
 ];
 
 return $config

composer.json

@@ -19,10 +19,10 @@
         "phpstan/phpstan-phpunit": "^2.0.6",
         "phpstan/phpstan-strict-rules": "^2.0.4",
         "phpunit/phpunit": "^10.5.46",
+        "shipmonk/coding-standard": "^0.1.3",
         "shipmonk/composer-dependency-analyser": "^1.8.3",
         "shipmonk/dead-code-detector": "^0.12.1",
-        "shipmonk/phpstan-rules": "^4.1.3",
-        "slevomat/coding-standard": "^8.15.0"
+        "shipmonk/phpstan-rules": "^4.1.3"
     },
     "autoload": {
         "psr-4": {