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/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseAnd.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseAnd extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '&';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_BitwiseAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseOr.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseOr extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '|';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_BitwiseOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BitwiseXor.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BitwiseXor extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '^';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_BitwiseXor';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanAnd.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanAnd extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '&&';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_BooleanAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/BooleanOr.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class BooleanOr extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '||';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_BooleanOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Coalesce.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Coalesce extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '??';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Coalesce';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Concat.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Concat extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '.';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Concat';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Div.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Div extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '/';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Div';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Equal.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Equal extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '==';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Equal';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Greater.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Greater extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '>';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Greater';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/GreaterOrEqual.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class GreaterOrEqual extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '>=';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_GreaterOrEqual';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Identical.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Identical extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '===';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Identical';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalAnd.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalAnd extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return 'and';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_LogicalAnd';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalOr.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalOr extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return 'or';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_LogicalOr';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/LogicalXor.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class LogicalXor extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return 'xor';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_LogicalXor';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Minus.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Minus extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '-';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Minus';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mod.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Mod extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '%';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Mod';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Mul.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Mul extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '*';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Mul';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotEqual.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class NotEqual extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '!=';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_NotEqual';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/NotIdentical.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class NotIdentical extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '!==';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_NotIdentical';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Pipe.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Pipe extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '|>';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Pipe';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Plus.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Plus extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '+';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Plus';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Pow.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Pow extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '**';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Pow';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftLeft.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class ShiftLeft extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '<<';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_ShiftLeft';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/ShiftRight.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class ShiftRight extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '>>';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_ShiftRight';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Smaller.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Smaller extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '<';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Smaller';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/SmallerOrEqual.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class SmallerOrEqual extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '<=';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_SmallerOrEqual';
+    }
+}

vendor/nikic/php-parser/lib/PhpParser/Node/Expr/BinaryOp/Spaceship.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Expr\BinaryOp;
+
+use PhpParser\Node\Expr\BinaryOp;
+
+class Spaceship extends BinaryOp {
+    public function getOperatorSigil(): string {
+        return '<=>';
+    }
+
+    public function getType(): string {
+        return 'Expr_BinaryOp_Spaceship';
+    }
+}