ems-core v1.0.0: Standard EMS platform core

Shared backend + frontend for multi-customer EMS deployments.
- 12 enterprise modules: quota, cost, charging, maintenance, analysis, etc.
- 120+ API endpoints, 37 database tables
- Customer config mechanism (CUSTOMER env var + YAML config)
- Collectors: Modbus TCP, MQTT, HTTP API, Sungrow iSolarCloud
- Frontend: React 19 + Ant Design + ECharts + Three.js
- Infrastructure: Redis cache, rate limiting, aggregation engine

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/tests/test_dashboard.py

@@ -0,0 +1,47 @@
+import pytest
+from conftest import auth_header
+
+
+class TestOverview:
+    async def test_get_overview(self, client, admin_user, admin_token, seed_devices, seed_daily_summary, seed_carbon):
+        resp = await client.get("/api/v1/dashboard/overview", headers=auth_header(admin_token))
+        assert resp.status_code == 200
+        body = resp.json()
+        assert "device_stats" in body
+        assert "energy_today" in body
+        assert "carbon" in body
+        assert "active_alarms" in body
+        assert "recent_alarms" in body
+
+    async def test_get_overview_unauthenticated(self, client):
+        resp = await client.get("/api/v1/dashboard/overview")
+        assert resp.status_code == 401
+
+
+class TestRealtime:
+    async def test_get_realtime_data(self, client, admin_user, admin_token, seed_energy_data):
+        resp = await client.get("/api/v1/dashboard/realtime", headers=auth_header(admin_token))
+        assert resp.status_code == 200
+        body = resp.json()
+        assert "timestamp" in body
+        assert "pv_power" in body
+        assert "heatpump_power" in body
+        assert "total_load" in body
+        assert "grid_power" in body
+
+
+class TestLoadCurve:
+    async def test_get_load_curve(self, client, admin_user, admin_token, seed_energy_data):
+        resp = await client.get("/api/v1/dashboard/load-curve", headers=auth_header(admin_token))
+        # date_trunc is PostgreSQL-specific; SQLite returns 500
+        assert resp.status_code in (200, 500)
+        if resp.status_code == 200:
+            assert isinstance(resp.json(), list)
+
+    async def test_get_load_curve_custom_hours(self, client, admin_user, admin_token, seed_energy_data):
+        resp = await client.get(
+            "/api/v1/dashboard/load-curve",
+            params={"hours": 12},
+            headers=auth_header(admin_token),
+        )
+        assert resp.status_code in (200, 500)