feat: add php rule pack

rules/php/hooks.md

@@ -0,0 +1,24 @@
+---
+paths:
+  - "**/*.php"
+  - "**/composer.json"
+  - "**/phpstan.neon"
+  - "**/phpstan.neon.dist"
+  - "**/psalm.xml"
+---
+# PHP Hooks
+
+> This file extends [common/hooks.md](../common/hooks.md) with PHP specific content.
+
+## PostToolUse Hooks
+
+Configure in `~/.claude/settings.json`:
+
+- **Pint / PHP-CS-Fixer**: Auto-format edited `.php` files.
+- **PHPStan / Psalm**: Run static analysis after PHP edits in typed codebases.
+- **PHPUnit / Pest**: Run targeted tests for touched files or modules when edits affect behavior.
+
+## Warnings
+
+- Warn on `var_dump`, `dd`, `dump`, or `die()` left in edited files.
+- Warn when edited PHP files add raw SQL or disable CSRF/session protections.