refactor(process): take cwd as Option<&str> instead of IntoExecCwd

Replace the generic cwd parameter backed by the IntoExecCwd trait with a
concrete Option<&str> across execute/execute_args/execute_tty/execute_async.

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

3 files changed, 7 insertions, 7 deletions

diff --git a/crates/shirabe/src/command/diagnose_command.rs b/crates/shirabe/src/command/diagnose_command.rs
index 6757d94..99118cd 100644
--- a/crates/shirabe/src/command/diagnose_command.rs
+++ b/crates/shirabe/src/command/diagnose_command.rs
@@ -532,7 +532,7 @@ impl DiagnoseCommand {
                     "color.ui".to_string(),
                 ],
                 &mut output,
-                (),
+                None,
             );
         if strtolower(&trim(&output, Some(" \t\n\r\0\u{0B}"))) == "always" {
             return "<comment>Your git color.ui setting is set to always, this is known to create issues. Use \"git config --global color.ui true\" to set it correctly.</comment>".to_string();
diff --git a/crates/shirabe/src/command/home_command.rs b/crates/shirabe/src/command/home_command.rs
index b3bb3ff..081ce2d 100644
--- a/crates/shirabe/src/command/home_command.rs
+++ b/crates/shirabe/src/command/home_command.rs
@@ -92,22 +92,22 @@ impl HomeCommand {
             let _ = process.execute(
                 PhpMixed::from(vec!["start", "\"web\"", "explorer", url]),
                 (),
-                (),
+                None,
             );
             return;
         }
 
         let linux = process
-            .execute(PhpMixed::from(vec!["which", "xdg-open"]), (), ())
+            .execute(PhpMixed::from(vec!["which", "xdg-open"]), (), None)
             .unwrap_or(1);
         let osx = process
-            .execute(PhpMixed::from(vec!["which", "open"]), (), ())
+            .execute(PhpMixed::from(vec!["which", "open"]), (), None)
             .unwrap_or(1);
 
         if linux == 0 {
-            let _ = process.execute(PhpMixed::from(vec!["xdg-open", url]), (), ());
+            let _ = process.execute(PhpMixed::from(vec!["xdg-open", url]), (), None);
         } else if osx == 0 {
-            let _ = process.execute(PhpMixed::from(vec!["open", url]), (), ());
+            let _ = process.execute(PhpMixed::from(vec!["open", url]), (), None);
         } else {
             self.get_io().write_error(&format!(
                 "No suitable browser opening command found, open yourself: {}",
diff --git a/crates/shirabe/src/command/init_command.rs b/crates/shirabe/src/command/init_command.rs
index d98793a..9683b89 100644
--- a/crates/shirabe/src/command/init_command.rs
+++ b/crates/shirabe/src/command/init_command.rs
@@ -1010,7 +1010,7 @@ impl InitCommand {
         if process.execute_args(
             &["git".to_string(), "config".to_string(), "-l".to_string()],
             &mut output,
-            (),
+            None,
         ) == 0
         {
             *self.git_config.borrow_mut() = Some(IndexMap::new());