feat(event-dispatcher): unify event dispatch via EventInterface trait

Extract a superclass-trait EventInterface from the base Event.

pool_builder's PrePoolCreateEvent stays deferred: its constructor needs
owned, non-cloneable Request and repository boxes the builder only holds
by reference (owned-payload blocker). The event is plugin-only, so its
construction is re-tagged TODO(plugin).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/crates/shirabe/src/command/base_command.rs b/crates/shirabe/src/command/base_command.rs
index d7418ff..c98bc2b 100644
--- a/crates/shirabe/src/command/base_command.rs
+++ b/crates/shirabe/src/command/base_command.rs
@@ -378,15 +378,17 @@ impl<C: HasBaseCommandData> BaseCommand for C {
         if let Some(composer) = composer.as_ref() {
             // TODO(phase-b): requires inner Symfony Command get_name access
             let command_name: String = todo!();
-            let pre_command_run_event = PreCommandRunEvent::new(
+            let mut pre_command_run_event = PreCommandRunEvent::new(
                 PluginEvents::PRE_COMMAND_RUN.to_string(),
                 input,
                 command_name,
             );
-            // TODO(phase-b): event_dispatcher.dispatch expects Option<Event>; need wrapper from
-            // PreCommandRunEvent.
-            let _ = composer.borrow_partial().get_event_dispatcher();
-            let _ = pre_command_run_event.get_name();
+            let pre_command_run_event_name = pre_command_run_event.get_name().to_string();
+            let dispatcher = composer.borrow_partial().get_event_dispatcher();
+            dispatcher.borrow_mut().dispatch(
+                Some(&pre_command_run_event_name),
+                Some(&mut pre_command_run_event),
+            )?;
         }
 
         if input.borrow().has_parameter_option(&["--no-ansi"], false)