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, 4 insertions, 5 deletions

diff --git a/crates/shirabe/src/command/global_command.rs b/crates/shirabe/src/command/global_command.rs
index 2795b778..79037e55 100644
--- a/crates/shirabe/src/command/global_command.rs
+++ b/crates/shirabe/src/command/global_command.rs
@@ -19,7 +19,7 @@ use shirabe_external_packages::symfony::console::input::ArrayInput;
 use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::input::StringInput;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
-use shirabe_php_shim::{LogicException, RuntimeException, chdir, php_regex};
+use shirabe_php_shim::{LogicException, RuntimeException, chdir, impl_php_class, php_regex};
 use std::path::Path;
 
 #[derive(Debug)]
@@ -27,6 +27,8 @@ pub struct GlobalCommand {
     base_command_data: BaseCommandData,
 }
 
+impl_php_class!(GlobalCommand, r"Composer\Command\GlobalCommand");
+
 impl Default for GlobalCommand {
     fn default() -> Self {
         Self::new()
@@ -268,10 +270,7 @@ impl Command for GlobalCommand {
         base_command_initialize(self, input, output)
     }
 
-    shirabe_external_packages::delegate_command_trait_impls_to_inner!(
-        base_command_data,
-        "Composer\\Command\\GlobalCommand"
-    );
+    shirabe_external_packages::delegate_command_trait_impls_to_inner!(base_command_data);
 }
 
 impl BaseCommand for GlobalCommand {