Add Joomla-aware development workflows and scripts

- Created extension packaging script
- Added PHPStan configuration for static analysis
- Added PHP_CodeSniffer configuration with Joomla standards
- Created Codeception testing framework setup
- Added PHP quality check workflow
- Added Joomla testing workflow with multiple versions
- Added staging deployment workflow
- Created comprehensive documentation
- Set up test directory structure with sample tests

Co-authored-by: jmiller-moko <230051081+jmiller-moko@users.noreply.github.com>

tests/unit/TemplateConfigurationTest.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Tests\Unit;
+
+use Codeception\Test\Unit;
+use Tests\Support\UnitTester;
+
+/**
+ * Sample unit test for template functionality
+ */
+class TemplateConfigurationTest extends Unit
+{
+    protected UnitTester $tester;
+
+    /**
+     * Test that template has valid configuration structure
+     */
+    public function testTemplateManifestExists()
+    {
+        $manifestPath = __DIR__ . '/../../src/templates/templateDetails.xml';
+        
+        // Check if manifest file exists
+        $this->assertFileExists(
+            $manifestPath,
+            'Template manifest file should exist'
+        );
+    }
+
+    /**
+     * Test that manifest is valid XML
+     */
+    public function testManifestIsValidXml()
+    {
+        $manifestPath = __DIR__ . '/../../src/templates/templateDetails.xml';
+        
+        if (!file_exists($manifestPath)) {
+            $this->markTestSkipped('Manifest file not found');
+        }
+
+        $xml = @simplexml_load_file($manifestPath);
+        
+        $this->assertNotFalse(
+            $xml,
+            'Template manifest should be valid XML'
+        );
+    }
+
+    /**
+     * Test that template has required fields in manifest
+     */
+    public function testManifestHasRequiredFields()
+    {
+        $manifestPath = __DIR__ . '/../../src/templates/templateDetails.xml';
+        
+        if (!file_exists($manifestPath)) {
+            $this->markTestSkipped('Manifest file not found');
+        }
+
+        $xml = simplexml_load_file($manifestPath);
+        
+        // Check for required elements
+        $this->assertNotEmpty((string)$xml->name, 'Template should have a name');
+        $this->assertNotEmpty((string)$xml->version, 'Template should have a version');
+        $this->assertNotEmpty((string)$xml->author, 'Template should have an author');
+    }
+}