Track cancelled deployments separately.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/types/index.ts

@@ -139,6 +139,7 @@ export type DeploymentStatus =
   | 'deploying'
   | 'running'
   | 'failed'
+  | 'cancelled'
   | 'stopped'
   | 'deleting';