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, 7 deletions

diff --git a/crates/shirabe/src/command/config_command.rs b/crates/shirabe/src/command/config_command.rs
index a6ba2f76..0b22757a 100644
--- a/crates/shirabe/src/command/config_command.rs
+++ b/crates/shirabe/src/command/config_command.rs
@@ -24,9 +24,9 @@ use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
 use shirabe_php_shim::{
     InvalidArgumentException, PhpMixed, RuntimeException, array_is_list, array_merge,
-    escapeshellcmd, exec, explode, file_exists, implode, in_array, is_array, is_bool, is_dir,
-    is_numeric, is_object, is_string, json_encode, php_regex, str_replace, strpos, strtolower,
-    system, touch, var_export,
+    escapeshellcmd, exec, explode, file_exists, impl_php_class, implode, in_array, is_array,
+    is_bool, is_dir, is_numeric, is_object, is_string, json_encode, php_regex, str_replace, strpos,
+    strtolower, system, touch, var_export,
 };
 use shirabe_semver::VersionParser;
 
@@ -43,6 +43,8 @@ pub struct ConfigCommand {
     pub(crate) auth_config_source: std::cell::RefCell<Option<JsonConfigSource>>,
 }
 
+impl_php_class!(ConfigCommand, r"Composer\Command\ConfigCommand");
+
 impl ConfigCommand {
     /// List of additional configurable package-properties
     pub(crate) const CONFIGURABLE_PACKAGE_PROPERTIES: &'static [&'static str] = &[
@@ -1281,10 +1283,7 @@ impl Command for ConfigCommand {
         crate::command::base_command::base_command_complete(self, input, suggestions)
     }
 
-    shirabe_external_packages::delegate_command_trait_impls_to_inner!(
-        base_command_data,
-        "Composer\\Command\\ConfigCommand"
-    );
+    shirabe_external_packages::delegate_command_trait_impls_to_inner!(base_command_data);
 }
 
 impl BaseCommand for ConfigCommand {