refactor(php-shim): introduce PhpClass for reporting PHP class names

Rust has no runtime class name, so `Command::get_class` existed purely to
let each command hand back its PHP class name, supplied through the
two-argument variant of `delegate_command_trait_impls_to_inner!` at the
impl site. Replace it with a general `PhpClass` trait plus an
`impl_php_class!` macro, so the name is stated once next to the type
definition and the mechanism is reusable outside commands.

`Command` gains `PhpClass` as a supertrait and drops `get_class`, and
`VcsDriverKind`'s hand-rolled `php_class_name` table moves onto the trait.
Behavior is unchanged: the same class-name strings are reported, and the
base command state still panics when asked for a name it cannot supply.

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

1 files changed, 6 insertions, 6 deletions

diff --git a/crates/shirabe/src/command/init_command.rs b/crates/shirabe/src/command/init_command.rs
index 53b8915b..ec3f38b5 100644
--- a/crates/shirabe/src/command/init_command.rs
+++ b/crates/shirabe/src/command/init_command.rs
@@ -28,8 +28,9 @@ use shirabe_external_packages::symfony::console::output::OutputInterface;
 use shirabe_php_shim::{
     FILE_IGNORE_NEW_LINES, InvalidArgumentException, PHP_EOL, PHP_SERVER, PhpMixed,
     array_flip_strings, array_intersect_key, array_map, basename, empty, explode, file,
-    file_exists, file_get_contents, file_put_contents, get_current_user, implode, is_dir,
-    is_string, php_regex, preg_quote, realpath, str_replace, strpos, strtolower, trim, ucwords,
+    file_exists, file_get_contents, file_put_contents, get_current_user, impl_php_class, implode,
+    is_dir, is_string, php_regex, preg_quote, realpath, str_replace, strpos, strtolower, trim,
+    ucwords,
 };
 use shirabe_spdx_licenses::SpdxLicenses;
 
@@ -45,6 +46,8 @@ pub struct InitCommand {
     >,
 }
 
+impl_php_class!(InitCommand, r"Composer\Command\InitCommand");
+
 impl PackageDiscoveryTrait for InitCommand {
     fn get_repos_mut(
         &self,
@@ -908,10 +911,7 @@ impl Command for InitCommand {
         crate::command::base_command::base_command_complete(self, input, suggestions)
     }
 
-    shirabe_external_packages::delegate_command_trait_impls_to_inner!(
-        base_command_data,
-        "Composer\\Command\\InitCommand"
-    );
+    shirabe_external_packages::delegate_command_trait_impls_to_inner!(base_command_data);
 }
 
 impl BaseCommand for InitCommand {