DEV-854: Add Nordic PPK2 instrument driver and codec test coverage

CHANGELOG.md

@@ -7,6 +7,7 @@ This project follows [Semantic Versioning](https://semver.org/).
 
 ### Added
 
+- Nordic Power Profiler Kit II (PPK2) instrument driver (`src/instruments/ppk2/`, DEV-854): `Ppk2` Web Serial transport (source/ampere meter, source voltage, DUT power, 100 kS/s measurement stream) and a pure codec layer (`Ppk2SampleDecoder`, `parsePpk2Metadata`, `convertSourceVoltage`, `RunningStats`, `MinMaxDownsampler`). The decoder is an exact port of the Python `ppk2_api` calibration polynomial + spike filter, verified against fixtures generated by the Python reference (`tests/instruments/ppk2/`). Used by the device console's production power-consumption tests.
 - Live stream statistics: `StreamStatsTracker` (core), `VerisenseBleDevice.getStreamStats()`, a throttled `streamStats` event, and per-sub-stream `SensorBase.getStreamContributions()` for windowed throughput and sample-gap-derived packet loss.
 
 ### Fixed

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@shimmerresearch/shimmer-web-sdk",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "description": "Web Bluetooth and Web Serial API for Shimmer sensor devices (Shimmer3R, Verisense IMU/Pulse+)",
   "type": "module",
   "main": "dist/shimmer-web-sdk.cjs",

src/index.ts

@@ -256,3 +256,31 @@ export { SensorMAX32674 } from './devices/verisense/sensors/SensorMAX32674.js';
 export type { MAX32674Sample } from './devices/verisense/sensors/SensorMAX32674.js';
 export { SensorMLX90632 } from './devices/verisense/sensors/SensorMLX90632.js';
 export type { MLX90632Sample } from './devices/verisense/sensors/SensorMLX90632.js';
+
+// Instruments — Nordic Power Profiler Kit II (PPK2)
+export { Ppk2 } from './instruments/ppk2/Ppk2.js';
+export type { Ppk2Options } from './instruments/ppk2/Ppk2.js';
+export {
+  Ppk2SampleDecoder,
+  parsePpk2Metadata,
+  convertSourceVoltage,
+  clampSourceVoltageMv,
+  clonePpk2Modifiers,
+  DEFAULT_PPK2_MODIFIERS,
+  RunningStats,
+  MinMaxDownsampler,
+} from './instruments/ppk2/ppk2Codec.js';
+export type {
+  Ppk2Modifiers,
+  Ppk2RangeTable,
+  Ppk2SampleBatch,
+  MinMaxBin,
+} from './instruments/ppk2/ppk2Codec.js';
+export {
+  PPK2_CMD,
+  PPK2_USB_VENDOR_ID,
+  PPK2_USB_PRODUCT_ID,
+  PPK2_BAUD_RATE,
+  PPK2_SAMPLES_PER_SECOND,
+} from './instruments/ppk2/constants.js';
+export type { Ppk2Command } from './instruments/ppk2/constants.js';