Simplify Relay Lab dashboard and retry handling

queue_store.py

@@ -4,6 +4,8 @@ import sqlite3
 from contextlib import contextmanager
 from uuid import uuid4
 
+MAX_ATTEMPTS = 3
+
 
 class Conflict(Exception):
     """An idempotency key was reused for a different request."""
@@ -77,7 +79,7 @@ class QueueStore:
                 (now,),
             ).fetchall()
             for row in expired:
-                state = "dead" if row["attempts"] >= 3 else "queued"
+                state = "dead" if row["attempts"] >= MAX_ATTEMPTS else "queued"
                 db.execute("""
                     UPDATE jobs SET state = ?, available_at = ?, lease_token = NULL,
                         lease_until = NULL WHERE id = ?
@@ -104,7 +106,7 @@ class QueueStore:
         delay = 2 ** attempt
         if success:
             state, message = "delivered", "Consumer acknowledged the event"
-        elif attempt >= 3:
+        elif attempt >= MAX_ATTEMPTS:
             state, message = "dead", "Consumer failed · attempts exhausted"
         else:
             state, message = "queued", f"Consumer failed · retry in {delay}s"