fix: auto-block repeated kanban retries

hermes_cli/config.py

@@ -1230,6 +1230,10 @@ DEFAULT_CONFIG = {
         # Seconds between dispatcher ticks (idle or not). Lower = snappier
         # pickup of newly-ready tasks; higher = less SQL pressure.
         "dispatch_interval_seconds": 60,
+        # Auto-block after this many consecutive non-success attempts for the
+        # same task/profile (spawn_failed, timed_out, or crashed). Reassignment
+        # resets the streak for the new profile.
+        "failure_limit": 2,
     },
 
     # execute_code settings — controls the tool used for programmatic tool calls.