phase 14-15: docker build validation and helm deployment

tests/test_config.py

@@ -1,5 +1,5 @@
 """Basic tests for shared config loader."""
-from services.shared.config import load_config, AppConfig
+from services.shared.config import load_config, AppConfig, AlertingConfig
 
 
 def test_load_config_returns_app_config():
@@ -20,3 +20,13 @@ def test_redis_url_format():
 def test_default_broker_mode():
     config = load_config()
     assert config.broker.mode == "paper"
+
+
+def test_alerting_config_defaults():
+    config = load_config()
+    assert isinstance(config.alerting, AlertingConfig)
+    assert config.alerting.source_failure_threshold == 3
+    assert config.alerting.schema_failure_rate_threshold == 0.3
+    assert config.alerting.lake_lag_threshold_minutes == 60
+    assert config.alerting.broker_error_threshold == 3
+    assert config.alerting.check_interval_seconds == 120