refactor: Cleanup git state - commit all staged changes

Major refactoring cleanup:
- Add new controller architecture (class-controller-*.php)
- Add new settings-v2 UI (views/settings-v2/)
- Add new CSS architecture (agentic-sidebar.css, tokens)
- Add esbuild build pipeline (scripts/build.js, package.json)
- Add composer dependencies (vendor/)
- Add frontend src directory (assets/js/src/index.jsx)
- Add documentation files
- Remove old/obsolete files (class-settings.php, old CSS)

This commits all pending changes from previous refactoring efforts.

vendor/phpdocumentor/reflection/phpcs.xml.dist

@@ -0,0 +1,66 @@
+<?xml version="1.0"?>
+<ruleset name="Reflection">
+ <description>The coding standard for this library.</description>
+
+    <file>src</file>
+    <file>tests/unit</file>
+    <exclude-pattern>*/tests/unit/Types/ContextFactoryTest\.php</exclude-pattern>
+    <arg value="p"/>
+
+    <!-- Set the minimum PHP version for PHPCompatibility.
+         This should be kept in sync with the requirements in the composer.json file. -->
+    <config name="testVersion" value="8.1-"/>
+
+    <arg value="nps"/>
+
+    <rule ref="Doctrine">
+        <exclude name="Generic.Formatting.MultipleStatementAlignment.NotSame"/>
+        <exclude name="SlevomatCodingStandard.Classes.SuperfluousAbstractClassNaming.SuperfluousPrefix"/>
+        <exclude name="SlevomatCodingStandard.Classes.SuperfluousExceptionNaming.SuperfluousSuffix"/>
+        <exclude name="SlevomatCodingStandard.Classes.SuperfluousInterfaceNaming.SuperfluousSuffix"/>
+        <exclude name="SlevomatCodingStandard.Commenting.ForbiddenAnnotations"/>
+
+        <exclude name="Squiz.Commenting.FunctionComment"/>
+    </rule>
+
+    <rule ref="SlevomatCodingStandard.Commenting.ForbiddenAnnotations">
+        <properties>
+            <property name="forbiddenAnnotations" type="array">
+                <element value="@author"/>
+                <element value="@category"/>
+                <element value="@copyright"/>
+                <element value="@created"/>
+                <element value="@license"/>
+                <element value="@package"/>
+                <element value="@since"/>
+                <element value="@subpackage"/>
+                <element value="@version"/>
+            </property>
+        </properties>
+    </rule>
+
+    <rule ref="Generic.Formatting.SpaceAfterNot">
+        <properties>
+            <property name="spacing" value="0"/>
+        </properties>
+    </rule>
+
+    <rule ref="SlevomatCodingStandard.Commenting.InlineDocCommentDeclaration.NoAssignment">
+        <exclude-pattern>packages/guides/src/Setup/QuickStart.php</exclude-pattern>
+    </rule>
+
+    <rule ref="SlevomatCodingStandard.Numbers.RequireNumericLiteralSeparator">
+        <properties>
+            <property name="minDigitsBeforeDecimalPoint" value="5"/>
+        </properties>
+    </rule>
+
+    <rule ref="SlevomatCodingStandard.Functions.StaticClosure.ClosureNotStatic">
+        <exclude-pattern>*/tests/unit/*</exclude-pattern>
+    </rule>
+
+    <rule ref="Squiz.Classes.ValidClassName.NotCamelCaps">
+        <exclude-pattern>*/tests/unit/*</exclude-pattern>
+        <exclude-pattern>*/src/phpDocumentor/Reflection/Php/*</exclude-pattern>
+    </rule>
+</ruleset>