refactor(pcre): extract composer/pcre into the shirabe-pcre crate

Move `Composer\Pcre` out of shirabe-external-packages and into its own
crate, so the path is `shirabe_pcre::preg::Preg` instead of
`shirabe_external_packages::composer::pcre::preg::Preg`.

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

3 files changed, 3 insertions, 3 deletions

diff --git a/crates/shirabe/src/installer/binary_installer.rs b/crates/shirabe/src/installer/binary_installer.rs
index 56f95c89..8cd4fe5a 100644
--- a/crates/shirabe/src/installer/binary_installer.rs
+++ b/crates/shirabe/src/installer/binary_installer.rs
@@ -9,7 +9,7 @@ use crate::util::Platform;
 use crate::util::ProcessExecutor;
 use crate::util::Silencer;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::{CaptureKey, Preg};
+use shirabe_pcre::{CaptureKey, Preg};
 use shirabe_php_shim::{
     PhpMixed, basename, basename_with_suffix, chmod, dirname, fclose, fgets, file_exists,
     file_get_contents5, file_put_contents, fopen, is_dir, is_file, is_link, php_regex, realpath,
diff --git a/crates/shirabe/src/installer/library_installer.rs b/crates/shirabe/src/installer/library_installer.rs
index 6c94e0c1..cab1e206 100644
--- a/crates/shirabe/src/installer/library_installer.rs
+++ b/crates/shirabe/src/installer/library_installer.rs
@@ -12,7 +12,7 @@ use crate::repository::InstalledRepositoryInterfaceHandle;
 use crate::util::Filesystem;
 use crate::util::Platform;
 use crate::util::Silencer;
-use shirabe_external_packages::composer::pcre::Preg;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     InvalidArgumentException, LogicException, PhpMixed, dirname, is_dir, is_link, preg_quote,
     realpath, rmdir, rtrim, strpos,
diff --git a/crates/shirabe/src/installer/suggested_packages_reporter.rs b/crates/shirabe/src/installer/suggested_packages_reporter.rs
index 1b33289c..86540f50 100644
--- a/crates/shirabe/src/installer/suggested_packages_reporter.rs
+++ b/crates/shirabe/src/installer/suggested_packages_reporter.rs
@@ -6,8 +6,8 @@ use crate::package::PackageInterfaceHandle;
 use crate::repository::InstalledRepository;
 use crate::repository::RepositoryInterface;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::Preg;
 use shirabe_external_packages::symfony::console::formatter::OutputFormatter;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::php_regex;
 
 #[derive(Debug)]