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/flyfinder/Makefile

@@ -0,0 +1,32 @@
+.PHONY: install-phive
+install-phive:
+	mkdir tools; \
+	wget -O tools/phive.phar https://phar.io/releases/phive.phar; \
+	wget -O tools/phive.phar.asc https://phar.io/releases/phive.phar.asc; \
+	gpg --keyserver pool.sks-keyservers.net --recv-keys 0x9D8A98B29B2D5D79; \
+	gpg --verify tools/phive.phar.asc tools/phive.phar; \
+	chmod +x tools/phive.phar
+
+.PHONY: setup
+setup: install-phive
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project phpdoc/phar-ga:latest php tools/phive.phar install --force-accept-unsigned
+
+.PHONY: phpcs
+phpcs:
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project phpdoc/phpcs-ga:latest -d memory_limit=1024M
+
+.PHONY: phpstan
+phpstan:
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project phpdoc/phpstan-ga:latest analyse src --no-progress --level max --configuration phpstan.neon
+
+.PHONY: psaml
+psalm:
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project php:7.4 tools/psalm
+
+.PHONY: test
+test:
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project php:7.2 tools/phpunit
+
+.PHONY: pre-commit-test
+pre-commit-test: test phpcs phpstan psalm
+