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/base_command.rs b/crates/shirabe/src/command/base_command.rs
index 7e8a3f5a..77850e9e 100644
--- a/crates/shirabe/src/command/base_command.rs
+++ b/crates/shirabe/src/command/base_command.rs
@@ -27,8 +27,8 @@ use shirabe_external_packages::symfony::console::helper::TableSeparator;
 use shirabe_external_packages::symfony::console::input::InputInterface;
 use shirabe_external_packages::symfony::console::output::OutputInterface;
 use shirabe_php_shim::{
-    InvalidArgumentException, LogicException, PhpMixed, RuntimeException, UnexpectedValueException,
-    count, explode, in_array, is_string,
+    InvalidArgumentException, LogicException, PhpClass, PhpMixed, RuntimeException,
+    UnexpectedValueException, count, explode, in_array, is_string,
 };
 
 pub const SUCCESS: i64 = 0;
@@ -280,11 +280,13 @@ macro_rules! delegate_base_command_trait_impls_to_inner {
 
 impl Command for BaseCommandData {
     shirabe_external_packages::delegate_command_trait_impls_to_inner!(inner);
+}
 
-    fn get_class(&self) -> String {
-        // Forwards to the base state's panicking get_class; concrete commands supply their
-        // FQCN through delegate_command_trait_impls_to_inner!'s two-argument variant.
-        self.inner.get_class()
+impl PhpClass for BaseCommandData {
+    fn php_class_name(&self) -> &'static str {
+        // Forwards to the base state's panicking implementation; concrete commands supply
+        // their own class name through `impl_php_class!`.
+        self.inner.php_class_name()
     }
 }