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/composer/autoload_files.php

@@ -0,0 +1,40 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(__DIR__);
+$baseDir = dirname($vendorDir);
+
+return array(
+    '320cde22f66dd4f5d3fd621d3e88b98f' => $vendorDir . '/symfony/polyfill-ctype/bootstrap.php',
+    '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
+    'e69f7f6ee287b969198c3c9d6777bd38' => $vendorDir . '/symfony/polyfill-intl-normalizer/bootstrap.php',
+    '8825ede83f2f289127722d4e842cf7e8' => $vendorDir . '/symfony/polyfill-intl-grapheme/bootstrap.php',
+    'b6b991a57620e2fb6b2f66f03fe9ddc2' => $vendorDir . '/symfony/string/Resources/functions.php',
+    '89efb1254ef2d1c5d80096acd12c4098' => $vendorDir . '/twig/twig/src/Resources/core.php',
+    'ffecb95d45175fd40f75be8a23b34f90' => $vendorDir . '/twig/twig/src/Resources/debug.php',
+    'c7baa00073ee9c61edf148c51917cfb4' => $vendorDir . '/twig/twig/src/Resources/escaper.php',
+    'f844ccf1d25df8663951193c3fc307c8' => $vendorDir . '/twig/twig/src/Resources/string_loader.php',
+    '2203a247e6fda86070a5e4e07aed533a' => $vendorDir . '/symfony/clock/Resources/now.php',
+    '9d2b9fc6db0f153a0a149fefb182415e' => $vendorDir . '/symfony/polyfill-php84/bootstrap.php',
+    'a4a119a56e50fbb293281d9a48007e0e' => $vendorDir . '/symfony/polyfill-php80/bootstrap.php',
+    '9e4824c5afbdc1482b6025ce3d4dfde8' => $vendorDir . '/league/csv/src/functions_include.php',
+    '9eb40347f70870d4d4c016d3dd2f5056' => $vendorDir . '/jawira/plantuml-encoding/src/plantuml_functions.php',
+    'fa34c98812fe933c7eb09d51a30b8893' => $vendorDir . '/parsica-php/parsica/src/characters.php',
+    'ba0e2c712a105864c1ebb79dec0b46fe' => $vendorDir . '/parsica-php/parsica/src/combinators.php',
+    'f39b7cd64b322fa7949c96cbc6abc600' => $vendorDir . '/parsica-php/parsica/src/numeric.php',
+    '59c76105c195ba9f2c96e17d7858a544' => $vendorDir . '/parsica-php/parsica/src/predicates.php',
+    '0e64f77f2034d1ed87ca12da045c7854' => $vendorDir . '/parsica-php/parsica/src/primitives.php',
+    '916813e9bdadaccc4d59bce0b82b83e5' => $vendorDir . '/parsica-php/parsica/src/recursion.php',
+    '7a49cdbb835fcf72a81f6e3059fc2070' => $vendorDir . '/parsica-php/parsica/src/sideEffects.php',
+    '6ba8f31474c571e35cd3b7e5ce809a9c' => $vendorDir . '/parsica-php/parsica/src/space.php',
+    'dc39f6e3574dbe007bf5257cefb47de2' => $vendorDir . '/parsica-php/parsica/src/strings.php',
+    '1573166c90cc6845fe3af0c5d696dd47' => $vendorDir . '/parsica-php/parsica/src/Expression/expression.php',
+    '19db2fddbdac45468003bc044f3896dd' => $vendorDir . '/parsica-php/parsica/src/Internal/FP.php',
+    '549bd6f8e2401b9115114ebcad00190a' => $vendorDir . '/parsica-php/parsica/src/Curry/functions.php',
+    '6124b4c8570aa390c21fafd04a26c69f' => $vendorDir . '/myclabs/deep-copy/src/DeepCopy/deep_copy.php',
+    'f676b98f38a402a86808bdc0d7751f5c' => $vendorDir . '/phpdocumentor/reflection/src/php-parser/Modifiers.php',
+    '2324d0e5cadd603331d27de142371f0b' => $vendorDir . '/symfony/contracts/Deprecation/function.php',
+    'f598d06aa772fa33d905e87be6398fb1' => $vendorDir . '/symfony/polyfill-intl-idn/bootstrap.php',
+    'ec07570ca5a812141189b1fa81503674' => $vendorDir . '/phpunit/phpunit/src/Framework/Assert/Functions.php',
+);