fix(broker): restore main wiring and add production retry cadence + status surface

Co-authored-by: genichin <4282227+genichin@users.noreply.github.com>

tests/application/test_execution.py

@@ -272,6 +272,37 @@ def test_pending_sell_balance_failure_is_fail_closed_with_backoff_and_recovery()
     assert health["consecutive_failures"] == 0
 
 
+def test_pending_sell_health_preserves_non_transient_snapshot_failure_code():
+    broker = PaperBroker(fill_after_polls=0)
+    repo, svc, intents, _ = _wire(broker)
+    sid = _buy(intents, qty=3).slot_id
+    ExecutionService(
+        svc,
+        repo,
+        broker,
+        instance_key=INST,
+    ).run_once()
+    svc.sell(sid, actor="t", reason="full")
+
+    execution = ExecutionService(
+        svc,
+        repo,
+        broker,
+        instance_key=INST,
+        balance_reader=lambda: (_ for _ in ()).throw(
+            AccountSnapshotUnavailable(
+                "live_read_failed",
+                detail_code="authentication_failed",
+            )
+        ),
+    )
+    result = execution.run_once()
+    assert result.sell_skipped_no_balance == 1
+    health = execution.balance_worker_health(stale_after_sec=600)
+    assert health["state"] == "unavailable"
+    assert health["failure_code"] == "authentication_failed"
+
+
 def test_partial_sell_qty_is_min_intent_broker():
     """dcy-021/REQ-062 (D4): partial sell dispatches min(intent qty, broker);
     remainder stays holding (broker-authoritative qty), cost basis preserved."""