storkit: merge 448_story_send_oauth_login_link_via_chat_when_credentials_are_missing

server/src/chat/transport/whatsapp/commands.rs

@@ -383,7 +383,13 @@ async fn handle_llm_message(ctx: &WhatsAppWebhookContext, sender: &str, user_mes
         }
         Err(e) => {
             slog!("[whatsapp] LLM error: {e}");
-            let err_msg = format!("Error processing your request: {e}");
+            let err_msg = if let Some(url) = crate::llm::oauth::extract_login_url_from_error(&e) {
+                format!(
+                    "Authentication required. Log in to Claude here: {url}"
+                )
+            } else {
+                format!("Error processing your request: {e}")
+            };
             let _ = msg_tx.send(err_msg.clone());
             (err_msg, None)
         }
@@ -491,6 +497,24 @@ mod tests {
         })
     }
 
+    // ── OAuth login link formatting ───────────────────────────────────────
+
+    #[test]
+    fn whatsapp_oauth_error_produces_plain_text_url() {
+        let err = "OAuth session expired or credentials missing. Please log in: http://localhost:3001/oauth/authorize";
+        let url = crate::llm::oauth::extract_login_url_from_error(err);
+        assert!(url.is_some(), "should extract URL from OAuth error");
+        let msg = format!("Authentication required. Log in to Claude here: {}", url.unwrap());
+        assert!(msg.contains("http://localhost:3001/oauth/authorize"));
+        assert!(!msg.contains('['), "WhatsApp message should not use Markdown link syntax");
+    }
+
+    #[test]
+    fn whatsapp_non_oauth_error_not_formatted_as_link() {
+        let err = "Some unrelated error occurred during processing";
+        assert!(crate::llm::oauth::extract_login_url_from_error(err).is_none());
+    }
+
     // ── Allowlist tests ───────────────────────────────────────────────────
 
     #[tokio::test]