docs(rules): add @author and @SInCE ARFA 1.3 docblocks to all 33 sanitization rules

Add canonical PHPDoc headers to all rule classes across Brazilian, Date,
Filter, Html, Numeric, String, and Type categories to conform to the
ARFA 1.3 documentation standard.

Affected: all 7 rule categories (33 rule classes total)

Author: walmir-silva

src/Rule/Brazilian/FormatCepRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Formats a CEP: 63100000 → 63100-000.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class FormatCepRule implements SanitizationRule
 {

src/Rule/Brazilian/FormatCnpjRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Formats a CNPJ number: 11222333000181 → 11.222.333/0001-81.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class FormatCnpjRule implements SanitizationRule
 {

src/Rule/Brazilian/FormatCpfRule.php

@@ -12,6 +12,10 @@
  *
  * If the input is already formatted, normalizes it.
  * If the digit count is not 11, returns as-is.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class FormatCpfRule implements SanitizationRule
 {

src/Rule/Date/NormalizeDateRule.php

@@ -11,6 +11,10 @@
  * Normalizes a date string to a standard format.
  *
  * Parameters: from (string, default 'd/m/Y'), to (string, default 'Y-m-d').
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class NormalizeDateRule implements SanitizationRule
 {

src/Rule/Date/TimestampToDateRule.php

@@ -11,6 +11,10 @@
  * Converts a Unix timestamp to a formatted date string.
  *
  * Parameters: format (string, default 'Y-m-d H:i:s'), timezone (string, default 'UTC').
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class TimestampToDateRule implements SanitizationRule
 {

src/Rule/Filter/AlphaOnlyRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Strips all non-letter characters (Unicode-aware via \pL).
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class AlphaOnlyRule implements SanitizationRule
 {

src/Rule/Filter/AlphanumericOnlyRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Strips all non-alphanumeric characters (Unicode-aware).
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class AlphanumericOnlyRule implements SanitizationRule
 {

src/Rule/Filter/DigitsOnlyRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Strips all non-digit characters from a string.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class DigitsOnlyRule implements SanitizationRule
 {

src/Rule/Filter/EmailFilterRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Sanitizes an email address: trims, lowercases, removes illegal chars.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class EmailFilterRule implements SanitizationRule
 {

src/Rule/Html/HtmlDecodeRule.php

@@ -9,6 +9,10 @@
 
 /**
  * Decodes HTML entities back to characters.
+ *
+ * @author  Walmir Silva <walmir.silva@kariricode.org>
+ *
+ * @since   3.1.0 ARFA 1.3
  */
 final readonly class HtmlDecodeRule implements SanitizationRule
 {