fix: run hj should fallback to jj instead of showing help prompt

Author: gaojunran

src/commit.rs

@@ -102,7 +102,7 @@ pub(crate) fn command_reset(
     force: bool,
 ) -> anyhow::Result<()> {
     let args: Vec<&str> = vec![
-        "squashaaaaa",
+        "squash",
         "--interactive",
         "--from",
         from.as_deref().unwrap_or("@-"),

src/main.rs

@@ -44,7 +44,7 @@ use crate::{
 #[command(about = "Fast, opinionated version control experience.", long_about = None)]
 struct Cli {
     #[command(subcommand)]
-    command: Commands,
+    command: Option<Commands>,
 }
 
 #[derive(Subcommand)]
@@ -295,7 +295,16 @@ fn main() {
     }
 
     let cli = Cli::parse();
-    match &cli.command {
+
+    // If no subcommand is provided, fallback to jj
+    let Some(command) = &cli.command else {
+        if let Err(e) = handle_fallback_command(&[]) {
+            error(&e.to_string());
+        }
+        return;
+    };
+
+    match command {
         Commands::Init {
             github,
             private,