Grotti 2.10.0: Orca-Senden, Slice-Ordner, ED-Strom, Hygiene.

Slice-Watch mit Ordnern/Filtern, Orca-Nachbearbeitung, Cockpit-Verlauf
mit ED, Zeitzone im Browser. Tasten-Grenze und README-API angeglichen,
toter Code entfernt, Requirements gepinnt.

tests/test_cost_ed.py

@@ -0,0 +1,51 @@
+"""ED-Stromschätzung."""
+
+import unittest
+from datetime import datetime, timezone
+
+from grotti.cost import energy_estimate
+
+
+def sample_at(offset_s, np=None, bp=None):
+    base = datetime(2026, 10, 17, 15, 0, tzinfo=timezone.utc).timestamp()
+    at = datetime.fromtimestamp(base + offset_s, tz=timezone.utc).isoformat()
+    return {"sampled_at": at, "nozzle_power": np, "bed_power": bp}
+
+
+class EnergyEdTests(unittest.TestCase):
+    def test_flat_without_heater_watts(self):
+        est = energy_estimate(3600, {"watts": 100, "euro_per_kwh": 0.5}, [
+            sample_at(0, np=1.0, bp=1.0),
+            sample_at(1800, np=1.0, bp=1.0),
+        ])
+        self.assertEqual(est["source"], "flat")
+        self.assertAlmostEqual(est["kwh"], 0.1)
+        self.assertAlmostEqual(est["cost"], 0.05)
+
+    def test_ed_caps_long_gaps(self):
+        # 60 min Lücke → nur 90 s werden gezählt
+        samples = [sample_at(0, np=0.5, bp=0.0), sample_at(3600, np=0.5, bp=0.0)]
+        est = energy_estimate(3600, {
+            "watts": 0,
+            "nozzle_watts": 100,
+            "bed_watts": 0,
+            "euro_per_kwh": 1,
+        }, samples)
+        self.assertEqual(est["source"], "ed")
+        self.assertAlmostEqual(est["print_kwh"], (100 * 0.5 / 1000) * (90 / 3600), places=6)
+
+    def test_ed_dense_samples_full_hour(self):
+        samples = [sample_at(i * 30, np=1.0, bp=0.0) for i in range(0, 121)]
+        est = energy_estimate(3600, {
+            "watts": 0,
+            "nozzle_watts": 200,
+            "bed_watts": 0,
+            "euro_per_kwh": 2,
+        }, samples)
+        self.assertEqual(est["source"], "ed")
+        self.assertAlmostEqual(est["print_kwh"], 0.2, places=3)
+        self.assertAlmostEqual(est["cost"], 0.4, places=3)
+
+
+if __name__ == "__main__":
+    unittest.main()