os: fix windows is_executable() , consider .com too (#25486)

Author: kbkpbot

vlib/os/os.c.v

@@ -433,7 +433,12 @@ pub fn is_executable(path string) bool {
 		// 04 Read-only
 		// 06 Read and write
 		p := real_path(path)
-		return exists(p) && (p.ends_with('.exe') || p.ends_with('.bat') || p.ends_with('.cmd'))
+		if !exists(p) {
+			return false
+		}
+		ext := p.to_lower().all_after_last('.')
+		// Note: Extensions like 'ps1', 'vbs', 'js', 'msi', 'scr', 'pif' require specific interpreters and are not directly executable
+		return ext in ['exe', 'com', 'bat', 'cmd']
 	}
 	$if solaris {
 		attr := stat(path) or { return false }

vlib/os/os_test.c.v

@@ -597,6 +597,12 @@ fn test_is_executable_writable_readable() {
 		assert os.is_writable(file_name)
 		assert os.is_readable(file_name)
 		assert os.is_executable(file_name)
+		for ext in ['exe', 'com', 'bat', 'cmd'] {
+			mut executable_file_name := 'executable.${ext}'
+			create_file(executable_file_name)!
+			assert os.is_executable(executable_file_name)
+			os.rm(executable_file_name) or { panic(err) }
+		}
 	}
 	// We finally delete the test file.
 	os.rm(file_name) or { panic(err) }