Rename namespace Aternos\Codex to IndifferentKetchup\Codex

Bulk substitution across all PHP files in src/ and test/. Covers
namespace declarations, use statements, fully-qualified class
references, and @package PHPDoc tags. No logic changes.

src/Log/AnalysableLog.php

@@ -1,14 +1,14 @@
 <?php
 
-namespace Aternos\Codex\Log;
+namespace IndifferentKetchup\Codex\Log;
 
-use Aternos\Codex\Analyser\AnalyserInterface;
-use Aternos\Codex\Analysis\AnalysisInterface;
+use IndifferentKetchup\Codex\Analyser\AnalyserInterface;
+use IndifferentKetchup\Codex\Analysis\AnalysisInterface;
 
 /**
  * Class AnalysableLog
  *
- * @package Aternos\Codex\Log
+ * @package IndifferentKetchup\Codex\Log
  */
 abstract class AnalysableLog extends Log implements AnalysableLogInterface
 {