Fix code quality tools configuration and workflow

- Fix PHP CodeSniffer configuration to use WordPress coding standards
- Add WordPress stubs to PHPStan configuration
- Fix Codacy Analysis action by removing unsupported parameter
- Update SonarCloud action to use recommended sonarqube-scan-action
- Add comprehensive documentation for code quality tools
- Update composer scripts to use vendor binaries

docs/code-quality-setup.md

@@ -0,0 +1,105 @@
+# Code Quality Tools Setup
+
+This document explains how to set up and use the code quality tools for this project.
+
+## Prerequisites
+
+* PHP 7.4 or higher
+* Composer
+
+## Installation
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/wpallstars/wp-plugin-starter-template-for-ai-coding.git
+   cd wp-plugin-starter-template-for-ai-coding
+   ```
+
+2. Install dependencies:
+   ```bash
+   composer install
+   ```
+
+## Available Tools
+
+### PHP CodeSniffer (PHPCS)
+
+PHPCS checks your code against the WordPress Coding Standards.
+
+```bash
+# Run PHPCS
+composer phpcs
+
+# Run PHPCS with a simplified ruleset
+composer phpcs:simple
+```
+
+### PHP Code Beautifier and Fixer (PHPCBF)
+
+PHPCBF automatically fixes coding standard violations.
+
+```bash
+# Run PHPCBF to fix coding standard violations
+composer phpcbf
+
+# Run PHPCBF with a simplified ruleset
+composer phpcbf:simple
+```
+
+### PHPStan
+
+PHPStan performs static analysis to find bugs in your code.
+
+```bash
+# Run PHPStan
+composer phpstan
+```
+
+### PHP Mess Detector (PHPMD)
+
+PHPMD detects potential problems in your code.
+
+```bash
+# Run PHPMD
+composer phpmd
+```
+
+### Running All Linters
+
+```bash
+# Run all linters (PHPCS, PHPStan, PHPMD)
+composer lint
+```
+
+### Running All Fixers
+
+```bash
+# Run all fixers (PHPCBF)
+composer fix
+```
+
+## Environment Variables
+
+For SonarCloud and Codacy integration, you need to set up the following environment variables:
+
+### SonarCloud
+
+```bash
+export SONAR_TOKEN=your_sonar_token
+```
+
+### Codacy
+
+```bash
+export CODACY_PROJECT_TOKEN=your_codacy_token
+```
+
+## CI/CD Integration
+
+The project includes GitHub Actions workflows for running these tools automatically on each push and pull request. See the `.github/workflows/code-quality.yml` file for details.
+
+## Customization
+
+* PHPCS rules can be customized in `phpcs.xml`
+* PHPStan configuration is in `phpstan.neon`
+* SonarCloud configuration is in `sonar-project.properties`