feat(symfony-process): port full Process class from PHP

Faithfully port every method, field and constant of Symfony's
Process.php into process.rs, replacing the reduced stub. Add the
supporting pipes module (PipesInterface/AbstractPipes/UnixPipes/
WindowsPipes), ProcessUtils and the missing process exceptions
(LogicException/InvalidArgumentException) with constructors.

Methods now return anyhow::Result where PHP throws, take the env
argument and a bool-returning callback, and borrow &mut for
status-updating accessors; all callers are updated accordingly.
Extend the php-shim with proc_open/proc_close (PHP-compatible
signatures), proc_get_status, proc_terminate, posix_kill, uniqid,
ftruncate, ftell_stream, fseek3, stream_get_contents3 and env
helpers.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/process/exception/process_signaled_exception.rs b/crates/shirabe-external-packages/src/symfony/process/exception/process_signaled_exception.rs
index 8b30c8d..03c4df2 100644
--- a/crates/shirabe-external-packages/src/symfony/process/exception/process_signaled_exception.rs
+++ b/crates/shirabe-external-packages/src/symfony/process/exception/process_signaled_exception.rs
@@ -1,9 +1,28 @@
 //! ref: composer/vendor/symfony/process/Exception/ProcessSignaledException.php
 
+use crate::symfony::process::process::Process;
+
 #[derive(Debug)]
 pub struct ProcessSignaledException {
     pub message: String,
     pub code: i64,
+    signal: i64,
+}
+
+impl ProcessSignaledException {
+    pub fn new(process: &mut Process) -> anyhow::Result<Self> {
+        let signal = process.get_term_signal()?;
+
+        Ok(Self {
+            message: format!("The process has been signaled with signal \"{}\".", signal),
+            code: 0,
+            signal,
+        })
+    }
+
+    pub fn get_signal(&self) -> i64 {
+        self.signal
+    }
 }
 
 impl std::fmt::Display for ProcessSignaledException {