style(phpcs): autofix WordPress-Core violations via phpcbf

Run phpcbf --standard=WordPress-Core across includes/, prautoblogger.php,
and uninstall.php. Fixed 1,362 formatting violations in 75 files:
  - Short array syntax: [] → array()
  - Line breaking for long function calls
  - Consistent indentation
  - Function call parameter alignment

No logic changes; purely mechanical formatting.

includes/admin/class-metrics-page.php

@@ -27,7 +27,7 @@ class PRAutoBlogger_Metrics_Page {
 			__( 'Metrics & Costs', 'prautoblogger' ),
 			'manage_options',
 			'prautoblogger-metrics',
-			[ $this, 'render_page' ]
+			array( $this, 'render_page' )
 		);
 	}