Restructure directories, upgrade PHPUnit and dev dependencies

Move source files from library/Respect/Config/ to src/ with proper
PSR-4 autoloading (Respect\Config\ -> src/). Flatten test directory
structure to match. Upgrade PHPUnit from ^10.0 to ^12.5, add PHPCS,
PHPStan, and Respect coding standard as dev dependencies. Replace
deprecated phpunit.xml.dist format with modern schema. Add composer
scripts for phpcs, phpstan, phpunit, coverage, and qa. Align
.gitignore with other Respect projects.

Author: alganet

.gitignore

@@ -1,5 +1,10 @@
-.couscous
-*.lock
+.couscous/
+.phpcs.cache
+.phpunit.cache/
+.phpunit.result.cache
+composer.lock
 Makefile
+phpcs.xml
+phpstan.neon
 phpunit.xml
-vendor
+vendor/

composer.json

@@ -1,8 +1,8 @@
 {
     "name": "respect/config",
+    "description": "A powerful, small, deadly simple configurator and dependency injection container made to be easy.",
     "type": "library",
     "homepage": "https://github.com/Respect/Config",
-    "description": "A powerful, small, deadly simple configurator and dependency injection container made to be easy.",
     "keywords": ["respect", "config", "dic", "dependency injection"],
     "license": "BSD-3-Clause",
     "authors": [
@@ -11,18 +11,43 @@
             "homepage": "https://github.com/Respect/Config/graphs/contributors"
         }
     ],
-    "autoload": {
-        "psr-4": {
-            "Respect\\": "library/Respect"
+    "config": {
+        "sort-packages": true,
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
         }
     },
     "require": {
-        "php": ">=8.5.0",
+        "php": ">=8.5",
         "psr/container": "^2.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^10.0",
-        "mikey179/vfsstream": "^1.6"
+        "mikey179/vfsstream": "^1.6",
+        "phpstan/phpstan": "^2.0",
+        "phpunit/phpunit": "^12.5",
+        "respect/coding-standard": "^5.0",
+        "squizlabs/php_codesniffer": "^4.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Respect\\Config\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Respect\\Config\\": "tests/"
+        }
+    },
+    "scripts": {
+        "coverage": "vendor/bin/phpunit --coverage-text",
+        "phpcs": "vendor/bin/phpcs",
+        "phpstan": "vendor/bin/phpstan analyze",
+        "phpunit": "vendor/bin/phpunit",
+        "qa": [
+            "@phpcs",
+            "@phpstan",
+            "@phpunit"
+        ]
     },
     "extra": {
         "branch-alias": {

phpunit.xml.dist

@@ -1,14 +1,15 @@
-<phpunit backupGlobals="false"
-         processIsolation="false"
-         stopOnFailure="false">
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="vendor/autoload.php">
     <testsuites>
-        <testsuite name="Respect\Config">
+        <testsuite name="unit">
             <directory suffix="Test.php">tests</directory>
         </testsuite>
     </testsuites>
-    <filter>
-        <whitelist>
-            <directory>library/</directory>
-        </whitelist>
-    </filter>
+    <source>
+        <include>
+            <directory>src</directory>
+        </include>
+    </source>
 </phpunit>