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, 7 insertions, 5 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/console/command/dump_completion_command.rs b/crates/shirabe-external-packages/src/symfony/console/command/dump_completion_command.rs
index 680ff962..31a94f0f 100644
--- a/crates/shirabe-external-packages/src/symfony/console/command/dump_completion_command.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/command/dump_completion_command.rs
@@ -10,7 +10,7 @@ use crate::symfony::console::input::input_interface::InputInterface;
 use crate::symfony::console::input::input_option::InputOption;
 use crate::symfony::console::output::output_interface::{self, OutputInterface};
 use crate::symfony::process::process::Process;
-use shirabe_php_shim::PhpMixed;
+use shirabe_php_shim::{PhpMixed, impl_php_class};
 use std::ops::{Deref, DerefMut};
 
 /// __DIR__.'/../Resources/completion.bash', embedded at compile time (this port ships as a
@@ -23,6 +23,11 @@ pub struct DumpCompletionCommand {
     inner: CommandData,
 }
 
+impl_php_class!(
+    DumpCompletionCommand,
+    r"Symfony\Component\Console\Command\DumpCompletionCommand"
+);
+
 impl Deref for DumpCompletionCommand {
     type Target = CommandData;
 
@@ -288,8 +293,5 @@ impl Command for DumpCompletionCommand {
         self.complete_impl(input, suggestions)
     }
 
-    crate::delegate_command_trait_impls_to_inner!(
-        inner,
-        "Symfony\\Component\\Console\\Command\\DumpCompletionCommand"
-    );
+    crate::delegate_command_trait_impls_to_inner!(inner);
 }