feat(process): redesign proc_* on PhpResource process handles

proc_open/proc_close/proc_get_status/proc_terminate represented the
process handle as a PhpMixed, which cannot hold a live child process or
its pipes, so they were stubs or todo!(). Model the handle as a new
PhpResource::Process variant and child pipes as a StreamBacking::Pipe,
with a native Descriptor enum for descriptorspec; proc_open now returns
io::Result and fills pipes as IndexMap<i64, PhpResource>.

Rewire the Symfony Process pipes and the Console terminal/cursor onto
the new types, removing the "PhpMixed cannot carry a PhpResource"
todo!()s. The remaining todo!()s are genuine syscall leaves
(proc_terminate signal delivery, stream_select, stream_set_blocking,
posix_kill, pty, fd>=3) left unimplemented since no syscall crate is
introduced.

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

1 files changed, 8 insertions, 19 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/console/cursor.rs b/crates/shirabe-external-packages/src/symfony/console/cursor.rs
index 811553f..c36f9b5 100644
--- a/crates/shirabe-external-packages/src/symfony/console/cursor.rs
+++ b/crates/shirabe-external-packages/src/symfony/console/cursor.rs
@@ -181,31 +181,20 @@ impl Cursor {
 
         let is_tty_supported = if shirabe_php_shim::function_exists("proc_open") {
             *IS_TTY_SUPPORTED.get_or_init(|| {
-                let mut pipes = shirabe_php_shim::PhpMixed::Null;
-                shirabe_php_shim::php_truthy(&shirabe_php_shim::proc_open(
+                let mut pipes = indexmap::IndexMap::new();
+                shirabe_php_shim::proc_open(
                     "echo 1 >/dev/null",
-                    &vec![
-                        shirabe_php_shim::PhpMixed::List(vec![
-                            shirabe_php_shim::PhpMixed::String("file".to_string()),
-                            shirabe_php_shim::PhpMixed::String("/dev/tty".to_string()),
-                            shirabe_php_shim::PhpMixed::String("r".to_string()),
-                        ]),
-                        shirabe_php_shim::PhpMixed::List(vec![
-                            shirabe_php_shim::PhpMixed::String("file".to_string()),
-                            shirabe_php_shim::PhpMixed::String("/dev/tty".to_string()),
-                            shirabe_php_shim::PhpMixed::String("w".to_string()),
-                        ]),
-                        shirabe_php_shim::PhpMixed::List(vec![
-                            shirabe_php_shim::PhpMixed::String("file".to_string()),
-                            shirabe_php_shim::PhpMixed::String("/dev/tty".to_string()),
-                            shirabe_php_shim::PhpMixed::String("w".to_string()),
-                        ]),
+                    &[
+                        shirabe_php_shim::Descriptor::File("/dev/tty".to_string(), "r".to_string()),
+                        shirabe_php_shim::Descriptor::File("/dev/tty".to_string(), "w".to_string()),
+                        shirabe_php_shim::Descriptor::File("/dev/tty".to_string(), "w".to_string()),
                     ],
                     &mut pipes,
                     None,
                     None,
                     None,
-                ))
+                )
+                .is_ok()
             })
         } else {
             false