feat: Initialize Atuin AI by default with `atuin init` (#3255)

* Run Atuin AI's `init` during main `init` for bash, zsh, and fish
* Note that logging into Hub will enable sync
* Add instructions for users with existing sync accounts
* Ensure daemon respects `auto_sync` setting
* Update docs on disabling Atuin AI

1 files changed, 10 insertions, 1 deletions

diff --git a/crates/atuin-ai/src/commands/inline.rs b/crates/atuin-ai/src/commands/inline.rs
index 37e5ab81..803c7d72 100644
--- a/crates/atuin-ai/src/commands/inline.rs
+++ b/crates/atuin-ai/src/commands/inline.rs
@@ -77,10 +77,19 @@ async fn ensure_hub_session(settings: &atuin_client::settings::Settings) -> Resu
         .active_hub_endpoint()
         .unwrap_or("https://hub.atuin.sh".to_string());
 
+    let will_sync = settings.is_hub_sync();
+
     info!("No Hub session found, prompting for authentication");
 
     println!("Atuin AI requires authenticating with Atuin Hub.");
-    println!("This is separate from your sync setup.");
+    if will_sync {
+        println!(
+            "Once logged in, your shell history will be synchronized via Atuin Hub if auto_sync is enabled or when manually syncing."
+        )
+    }
+    println!(
+        "If you have an existing Atuin sync account, you can log in with your existing credentials."
+    );
     println!("Press enter to begin (or esc to cancel).");
     if !wait_for_login_confirmation()? {
         bail!("authentication canceled");