Add PSR compliance section to report

[dereuromark]

Summary

• Adds PSR compliance comparison table to the framework report
• Shows which PSR interfaces each framework formally implements (via composer.json provide declarations)
• Covers PSR-3, 4, 6, 11, 13, 14, 15, 16, 17, 18, and 20

Key Findings

Framework	PSR Implementations
Symfony	9
CakePHP	7
Laravel	4
Laminas	2
CodeIgniter	1
Yii2	1

PSR Compliance Results

PSR	Standard	CakePHP	CodeIgniter	Laminas	Laravel	Symfony	Yii2
PSR-3	Logger Interface	✓	-	-	✓	✓	-
PSR-4	Autoloading	✓	✓	✓	✓	✓	✓
PSR-6	Cache Interface	-	-	-	-	✓	-
PSR-11	Container Interface	✓	-	✓	✓	✓	-
PSR-13	Link Interface	-	-	-	-	✓	-
PSR-14	Event Dispatcher	-	-	-	-	✓	-
PSR-15	HTTP Handlers	✓	-	-	-	-	-
PSR-16	Simple Cache	✓	-	-	✓	✓	-
PSR-17	HTTP Factories	✓	-	-	-	-	-
PSR-18	HTTP Client	✓	-	-	-	✓	-
PSR-20	Clock	-	-	-	-	✓	-
	Total	7	1	2	4	9	1

Ranking

1. Symfony - 9 PSR implementations (most comprehensive)
2. CakePHP - 7 PSR implementations (strong HTTP layer support)
3. Laravel - 4 PSR implementations
4. Laminas - 2 PSR implementations
5. CodeIgniter / Yii2 - 1 PSR implementation (PSR-4 only)

Note: Cake also supports Clock via chronos package.