Initial LsPower implementation

calibrations/calibration_20260513_222121.json

@@ -0,0 +1,21 @@
+{
+  "created_at": "2026-05-13T22:21:21",
+  "source": "gui",
+  "volts_per_sample_unit": 53.71652303624136,
+  "equivalent_full_scale_sine_rms_v": 37.98331770068966,
+  "known_rms_v": 5.0,
+  "measured_rms_sample_by_channel": {
+    "1": 0.09308560279962655,
+    "2": 0.09307685628819354
+  },
+  "peak_sample_by_channel": {
+    "1": 0.1507568359375,
+    "2": 0.1492919921875
+  },
+  "device_index": 3,
+  "channels_one_based": [
+    1,
+    2
+  ],
+  "samplerate": null
+}