docs: Add mutation-static command to composer scripts and update testing documentation.

CHANGELOG.md

@@ -0,0 +1,5 @@
+# Change Log
+
+## 0.1.0 July 4, 2025
+
+- Initial release

composer.json

@@ -52,6 +52,7 @@
         "check-dependencies": "./vendor/bin/composer-require-checker check",
         "ecs": "./vendor/bin/ecs --fix",
         "mutation": "./vendor/bin/infection --threads=4 --ignore-msi-with-no-mutations --only-covered --min-msi=100 --min-covered-msi=100",
+        "mutation-static": "./vendor/bin/infection --threads=4 --ignore-msi-with-no-mutations --only-covered --min-msi=100 --min-covered-msi=100 --static-analysis-tool=phpstan",
         "rector": "./vendor/bin/rector process src",
         "static": "./vendor/bin/phpstan --memory-limit=512M",
         "tests": "./vendor/bin/phpunit"

docs/testing.md

@@ -27,9 +27,15 @@ Mutation testing is checked with [Infection](https://infection.github.io/). To r
 composer run mutation
 ```
 
+With PHPStan analysis, it will also check for static analysis issues during mutation testing.
+
+```shell
+composer run mutation-static
+```
+
 ## Static analysis
 
-The code is statically analyzed with [Phpstan](https://phpstan.org/). To run static analysis.
+The code is statically analyzed with [PHPStan](https://phpstan.org/). To run static analysis.
 
 ```shell
 composer run static

infection.json5

@@ -10,8 +10,5 @@
         "directories": [
             "src"
         ]
-    },
-    "phpStan": {
-        "configDir": "."
-    },
+    }
 }