test(command): port InitCommandTest

Port the pure-method cases (parse/namespace/formatAuthors/git/vendor-ignore)
and build the ApplicationTester / initTempComposer harness the run cases need.

Supporting production changes:
- carry the streamable input stream as PhpResource (not PhpMixed) and add
  InputInterface::as_streamable so QuestionHelper reads the injected stream
- add StreamOutput/ConsoleOutput __set_stream test helpers and
  ApplicationHandle::set_catch_exceptions for the tester
- implement the interact() author validator via parse_author_string

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

1 files changed, 6 insertions, 2 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 d7ddafc..0784c7b 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
@@ -619,14 +619,18 @@ impl InputInterface for ArgvInput {
     fn set_interactive(&mut self, interactive: bool) {
         self.inner.set_interactive(interactive)
     }
+
+    fn as_streamable(&self) -> Option<&dyn StreamableInputInterface> {
+        Some(self)
+    }
 }
 
 impl StreamableInputInterface for ArgvInput {
-    fn set_stream(&mut self, stream: PhpMixed) {
+    fn set_stream(&mut self, stream: shirabe_php_shim::PhpResource) {
         self.inner.set_stream(stream)
     }
 
-    fn get_stream(&self) -> Option<PhpMixed> {
+    fn get_stream(&self) -> Option<shirabe_php_shim::PhpResource> {
         self.inner.get_stream()
     }
 }