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, 8 insertions, 6 deletions

diff --git a/crates/shirabe/src/command/create_project_command.rs b/crates/shirabe/src/command/create_project_command.rs
index 3410ad8b..7312a60b 100644
--- a/crates/shirabe/src/command/create_project_command.rs
+++ b/crates/shirabe/src/command/create_project_command.rs
@@ -44,8 +44,8 @@ use shirabe_external_packages::symfony::console::output::OutputInterface;
 use shirabe_external_packages::symfony::finder::Finder;
 use shirabe_php_shim::{
     DIRECTORY_SEPARATOR, InvalidArgumentException, PhpMixed, RuntimeException,
-    UnexpectedValueException, array_pop, chdir, explode_with_limit, file_exists, getcwd, implode,
-    is_dir, is_file, mkdir, realpath, rtrim, strtolower, unlink,
+    UnexpectedValueException, array_pop, chdir, explode_with_limit, file_exists, getcwd,
+    impl_php_class, implode, is_dir, is_file, mkdir, realpath, rtrim, strtolower, unlink,
 };
 use std::path::PathBuf;
 
@@ -59,6 +59,11 @@ pub struct CreateProjectCommand {
         std::cell::RefCell<Option<std::rc::Rc<std::cell::RefCell<SuggestedPackagesReporter>>>>,
 }
 
+impl_php_class!(
+    CreateProjectCommand,
+    r"Composer\Command\CreateProjectCommand"
+);
+
 impl Default for CreateProjectCommand {
     fn default() -> Self {
         Self::new()
@@ -271,10 +276,7 @@ impl Command for CreateProjectCommand {
         crate::command::base_command::base_command_complete(self, input, suggestions)
     }
 
-    shirabe_external_packages::delegate_command_trait_impls_to_inner!(
-        base_command_data,
-        "Composer\\Command\\CreateProjectCommand"
-    );
+    shirabe_external_packages::delegate_command_trait_impls_to_inner!(base_command_data);
 }
 
 impl BaseCommand for CreateProjectCommand {