feat(symfony-console): expose the input __toString on InputInterface

Every Symfony input already ports __toString as a Display impl, but callers
holding a dyn InputInterface could not reach it; forwarding a command run
across the plugin RPC boundary needs the stringified input.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/console/input/argv_input.rs b/crates/shirabe-external-packages/src/symfony/console/input/argv_input.rs
index 59828631..fdc2dcc2 100644
--- a/crates/shirabe-external-packages/src/symfony/console/input/argv_input.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/input/argv_input.rs
@@ -619,6 +619,10 @@ impl InputInterface for ArgvInput {
         self.inner.set_interactive(interactive)
     }
 
+    fn __to_string(&self) -> String {
+        self.to_string()
+    }
+
     fn as_streamable(&self) -> Option<&dyn StreamableInputInterface> {
         Some(self)
     }