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/package/loader/array_loader.rs b/crates/shirabe/src/package/loader/array_loader.rs
index 106f094e..df588cf9 100644
--- a/crates/shirabe/src/package/loader/array_loader.rs
+++ b/crates/shirabe/src/package/loader/array_loader.rs
@@ -17,7 +17,7 @@ use crate::package::loader::LoaderInterface;
 use crate::package::version::VersionParser;
 use chrono::Utc;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::Preg;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     AnyThrowable, E_USER_DEPRECATED, PhpMixed, UnexpectedValueException, is_scalar, is_string,
     json_encode, ltrim, php_regex, stripos, strpos, strtolower, strval, substr, trigger_error,
diff --git a/crates/shirabe/src/package/loader/root_package_loader.rs b/crates/shirabe/src/package/loader/root_package_loader.rs
index e26a7e95..5f35843e 100644
--- a/crates/shirabe/src/package/loader/root_package_loader.rs
+++ b/crates/shirabe/src/package/loader/root_package_loader.rs
@@ -15,7 +15,7 @@ use crate::repository::RepositoryManager;
 use crate::util::Platform;
 use crate::util::ProcessExecutor;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::{CaptureKey, Preg};
+use shirabe_pcre::{CaptureKey, Preg};
 use shirabe_php_shim::{
     PhpMixed, RuntimeException, UnexpectedValueException, php_regex, strtolower,
 };
diff --git a/crates/shirabe/src/package/loader/validating_array_loader.rs b/crates/shirabe/src/package/loader/validating_array_loader.rs
index fc8eed00..66123b58 100644
--- a/crates/shirabe/src/package/loader/validating_array_loader.rs
+++ b/crates/shirabe/src/package/loader/validating_array_loader.rs
@@ -7,7 +7,7 @@ use crate::package::version::VersionParser;
 use crate::package::{STABILITIES, SUPPORTED_LINK_TYPES};
 use crate::repository::PlatformRepository;
 use indexmap::IndexMap;
-use shirabe_external_packages::composer::pcre::Preg;
+use shirabe_pcre::Preg;
 use shirabe_php_shim::{
     CmpOp, E_USER_DEPRECATED, PHP_EOL, PhpMixed, array_intersect_key, array_values,
     filter_var_email, get_debug_type, is_array, is_bool, is_int, is_numeric, is_scalar, is_string,