refactor(preg): fold preg_match into preg_match2

preg_match copied every group into a Vec<Option<String>> while
preg_match2 handed back the borrowed captures. They now differ only in
the offset argument, so preg_match delegates with offset 0 and its
callers read groups through PregMatches::get.

Going through preg_match2 also makes preg_match honour the PCRE A
modifier, which it used to ignore; no caller passes such a pattern.

VersionParser::manipulate_version_string takes an index accessor instead
of a slice, and VersionParser::normalize matches against a copy of the
subject because the captures outlive the assignments to $version.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/shirabe-symfony-console/src/input/argv_input.rs b/crates/shirabe-symfony-console/src/input/argv_input.rs
index 81582408..94e5299d 100644
--- a/crates/shirabe-symfony-console/src/input/argv_input.rs
+++ b/crates/shirabe-symfony-console/src/input/argv_input.rs
@@ -526,8 +526,8 @@ impl std::fmt::Display for ArgvInput {
                 if let Some(r#match) = preg_match(php_regex!("{^(-[^=]+=)(.+)}"), token) {
                     return format!(
                         "{}{}",
-                        r#match[1].as_deref().unwrap_or(""),
-                        self.inner.escape_token(r#match[2].as_deref().unwrap_or(""))
+                        r#match.get(1).unwrap_or(""),
+                        self.inner.escape_token(r#match.get(2).unwrap_or(""))
                     );
                 }