feat: prepulate command in make-command

Fixed bug where created command file didn't end with `.py` and
prepopulate created file with minimal example of django management command.

src/scripts/django.rs

@@ -4,6 +4,7 @@ use super::DockerCommand;
 use anyhow::{anyhow, Result};
 use std::env;
 use std::fs::create_dir;
+use std::io::Write;
 use std::path::{Path, PathBuf};
 
 fn get_django_settings_module() -> Result<String> {
@@ -13,6 +14,14 @@ fn get_django_settings_module() -> Result<String> {
     Ok(dsm)
 }
 
+const DEBUG_TEMPLATE: &str = r#"from django.core.management.base import BaseCommand
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        pass
+
+"#;
+
 pub fn make_command(app: &PathBuf, name: &str) -> Result<()> {
     let app_name = app.to_string_lossy();
     let app_dir = Path::new(&app);
@@ -44,7 +53,9 @@ pub fn make_command(app: &PathBuf, name: &str) -> Result<()> {
         println!("created module {app_name}.management.commands")
     };
 
-    safe_create_file(commands_dir.join(name))?;
+    let mut file = safe_create_file(commands_dir.join(format!("{name}.py")))?;
+    file.write_all(DEBUG_TEMPLATE.as_bytes())?;
+
     println!("created command {app_name}.management.commands.{name}");
     Ok(())
 }