chore: reinitialize project with vite architecture

tests/test_resilience.py

@@ -0,0 +1,58 @@
+# -*- coding: utf-8 -*-
+"""Tests for runtime resilience helper contracts."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+
+from mes_dashboard.core.resilience import (
+    build_recovery_recommendation,
+    get_resilience_thresholds,
+    summarize_restart_history,
+)
+
+
+def test_get_resilience_thresholds_from_env(monkeypatch):
+    monkeypatch.setenv("RESILIENCE_RESTART_CHURN_WINDOW_SECONDS", "120")
+    monkeypatch.setenv("RESILIENCE_RESTART_CHURN_THRESHOLD", "2")
+    monkeypatch.setenv("RESILIENCE_POOL_SATURATION_WARNING", "0.8")
+
+    thresholds = get_resilience_thresholds()
+    assert thresholds["restart_churn_window_seconds"] == 120
+    assert thresholds["restart_churn_threshold"] == 2
+    assert thresholds["pool_saturation_warning"] == 0.8
+
+
+def test_summarize_restart_history_counts_entries_in_window():
+    now = datetime(2026, 2, 7, 12, 0, tzinfo=timezone.utc)
+    history = [
+        {"completed_at": (now - timedelta(seconds=30)).isoformat()},
+        {"completed_at": (now - timedelta(seconds=90)).isoformat()},
+        {"completed_at": (now - timedelta(seconds=700)).isoformat()},
+    ]
+
+    summary = summarize_restart_history(history, now=now, window_seconds=120, threshold=2)
+    assert summary["count"] == 2
+    assert summary["exceeded"] is True
+    assert summary["window_seconds"] == 120
+    assert summary["threshold"] == 2
+
+
+def test_build_recovery_recommendation_for_pool_churn_and_cooldown():
+    recommendation = build_recovery_recommendation(
+        degraded_reason="db_pool_saturated",
+        pool_saturation=1.0,
+        circuit_state="CLOSED",
+        restart_churn_exceeded=True,
+        cooldown_active=False,
+    )
+    assert recommendation["action"] == "throttle_and_investigate_queries"
+
+    cooldown_recommendation = build_recovery_recommendation(
+        degraded_reason="db_pool_saturated",
+        pool_saturation=1.0,
+        circuit_state="CLOSED",
+        restart_churn_exceeded=False,
+        cooldown_active=True,
+    )
+    assert cooldown_recommendation["action"] == "wait_for_restart_cooldown"