refactor(php-shim): give parse_url a typed UrlComponents result

parse_url now returns Option<UrlComponents> instead of a PhpMixed array,
and the component-selecting overload with the PHP_URL_* constants is gone:
callers read the field they want. Two call sites change behaviour as a
result, both towards PHP:

* CurlDownloader::handle_redirect tested scheme and host with is_null(), so
  an unparsable Location header (PhpMixed::Bool(false)) counted as an
  absolute URL. PHP's truthiness test sends it to the relative-path branch.
* Url::get_origin appended a literal port 0, which PHP treats as falsy and
  leaves off.

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

1 files changed, 2 insertions, 6 deletions

diff --git a/crates/shirabe-symfony-filesystem/src/filesystem.rs b/crates/shirabe-symfony-filesystem/src/filesystem.rs
index f8a88b02..9c2cb630 100644
--- a/crates/shirabe-symfony-filesystem/src/filesystem.rs
+++ b/crates/shirabe-symfony-filesystem/src/filesystem.rs
@@ -39,12 +39,8 @@ impl Filesystem {
 
         let mut do_copy = true;
         // PHP: !$overwriteNewerFiles && !parse_url($originFile, PHP_URL_HOST) && is_file($targetFile)
-        let origin_host = shirabe_php_shim::parse_url(origin_file, shirabe_php_shim::PHP_URL_HOST);
-        if matches!(
-            origin_host,
-            shirabe_php_shim::PhpMixed::Null | shirabe_php_shim::PhpMixed::Bool(false)
-        ) && shirabe_php_shim::is_file(target_file)
-        {
+        let origin_host = shirabe_php_shim::parse_url(origin_file).and_then(|url| url.host);
+        if origin_host.is_none() && shirabe_php_shim::is_file(target_file) {
             do_copy = shirabe_php_shim::filemtime(origin_file).unwrap_or(0)
                 > shirabe_php_shim::filemtime(target_file).unwrap_or(0);
         }