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/squizlabs/php_codesniffer/tests/Standards/AllSniffs.php

@@ -0,0 +1,114 @@
+<?php
+/**
+ * A test class for testing all sniffs for installed standards.
+ *
+ * @author    Greg Sherwood <gsherwood@squiz.net>
+ * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
+ * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/HEAD/licence.txt BSD Licence
+ */
+
+namespace PHP_CodeSniffer\Tests\Standards;
+
+use PHP_CodeSniffer\Autoload;
+use PHP_CodeSniffer\Util\Standards;
+use PHPUnit\Framework\TestSuite;
+use PHPUnit\TextUI\TestRunner;
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
+
+class AllSniffs
+{
+
+
+    /**
+     * Prepare the test runner.
+     *
+     * @return void
+     */
+    public static function main()
+    {
+        TestRunner::run(self::suite());
+
+    }//end main()
+
+
+    /**
+     * Add all sniff unit tests into a test suite.
+     *
+     * Sniff unit tests are found by recursing through the 'Tests' directory
+     * of each installed coding standard.
+     *
+     * @return \PHPUnit\Framework\TestSuite
+     */
+    public static function suite()
+    {
+        $GLOBALS['PHP_CODESNIFFER_SNIFF_CODES']      = [];
+        $GLOBALS['PHP_CODESNIFFER_FIXABLE_CODES']    = [];
+        $GLOBALS['PHP_CODESNIFFER_SNIFF_CASE_FILES'] = [];
+
+        $suite = new TestSuite('PHP CodeSniffer Standards');
+
+        // Optionally allow for ignoring the tests for one or more standards.
+        $ignoreTestsForStandards = getenv('PHPCS_IGNORE_TESTS');
+        if ($ignoreTestsForStandards === false) {
+            $ignoreTestsForStandards = [];
+        } else {
+            $ignoreTestsForStandards = explode(',', $ignoreTestsForStandards);
+        }
+
+        $installedStandards = self::getInstalledStandardDetails();
+
+        foreach ($installedStandards as $standard => $details) {
+            Autoload::addSearchPath($details['path'], $details['namespace']);
+
+            if (in_array($standard, $ignoreTestsForStandards, true) === true) {
+                continue;
+            }
+
+            $testsDir = $details['path'].DIRECTORY_SEPARATOR.'Tests'.DIRECTORY_SEPARATOR;
+            if (is_dir($testsDir) === false) {
+                // No tests for this standard.
+                continue;
+            }
+
+            $di = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($testsDir));
+
+            foreach ($di as $file) {
+                // Skip hidden files.
+                if (substr($file->getFilename(), 0, 1) === '.') {
+                    continue;
+                }
+
+                // Tests must have the extension 'php'.
+                $parts = explode('.', $file);
+                $ext   = array_pop($parts);
+                if ($ext !== 'php') {
+                    continue;
+                }
+
+                $className = Autoload::loadFile($file->getPathname());
+                $GLOBALS['PHP_CODESNIFFER_STANDARD_DIRS'][$className] = $details['path'];
+                $GLOBALS['PHP_CODESNIFFER_TEST_DIRS'][$className]     = $testsDir;
+                $suite->addTestSuite($className);
+            }
+        }//end foreach
+
+        return $suite;
+
+    }//end suite()
+
+
+    /**
+     * Get the details of all coding standards installed.
+     *
+     * @return array
+     * @see    Standards::getInstalledStandardDetails()
+     */
+    protected static function getInstalledStandardDetails()
+    {
+        return Standards::getInstalledStandardDetails(true);
+
+    }//end getInstalledStandardDetails()
+
+
+}//end class