fix(ci): avoid login shell side effects in shell command execution

Author: chumyin

src/cron/scheduler.rs

@@ -581,7 +581,7 @@ async fn run_job_command_with_timeout(
 
     let mut command = Command::new("/bin/sh");
     command
-        .arg("-lc")
+        .arg("-c")
         .arg(&job.command)
         .current_dir(&config.workspace_dir)
         .stdin(Stdio::null())

src/service/mod.rs

@@ -1164,23 +1164,23 @@ mod tests {
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_capture_reads_stdout() {
-        let out = run_capture(Command::new("/bin/sh").args(["-lc", "echo hello"]))
+        let out = run_capture(Command::new("/bin/sh").args(["-c", "echo hello"]))
             .expect("stdout capture should succeed");
         assert_eq!(out.trim(), "hello");
     }
 
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_capture_falls_back_to_stderr() {
-        let out = run_capture(Command::new("/bin/sh").args(["-lc", "echo warn 1>&2"]))
+        let out = run_capture(Command::new("/bin/sh").args(["-c", "echo warn 1>&2"]))
             .expect("stderr capture should succeed");
         assert_eq!(out.trim(), "warn");
     }
 
     #[cfg(not(target_os = "windows"))]
     #[test]
     fn run_checked_errors_on_non_zero_status() {
-        let err = run_checked(Command::new("/bin/sh").args(["-lc", "exit 17"]))
+        let err = run_checked(Command::new("/bin/sh").args(["-c", "exit 17"]))
             .expect_err("non-zero exit should error");
         assert!(err.to_string().contains("Command failed"));
     }