Add opt-in low power Sensor dog tracking

Acquire fresh GPS and validated UTC, check an authenticated owner Companion, and apply saved lost-status cadence with bounded awake windows. Persist request tags, routes, and six-hour flood reservations; preserve the four-day cutoff across sleep and restart.

Keep Dispatcher recovery active after a failed radio wake, honor denied flood retries after lost TxDone, and qualify GPS ownership and clock corrections. Add executable regression tests and nRF52/ESP32 Sensor build jobs.

Validation: six firmware builds, 1829 native test cases, sanitized tracker/storage/GPS/sleep/recovery tests, and strict documentation build. Bluetooth Find My advertising and automatic Room mailbox polling remain separate work.

.github/workflows/run-unit-tests.yml

@@ -10,6 +10,24 @@ on:
   workflow_dispatch:
 
 jobs:
+  nrf52-sensor-smoke:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Build Environment
+        uses: ./.github/actions/setup-build-environment
+      - name: Compile GPS Sensor tracker on nRF52 boards
+        run: pio run -e t1000e_sensor -e RAK_WisMesh_Tag_sensor
+
+  esp32-sensor-smoke:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Build Environment
+        uses: ./.github/actions/setup-build-environment
+      - name: Compile GPS-capable Sensor tracker on ESP32-S3
+        run: pio run -e heltec_v4_sensor
+
   management-reports:
     runs-on: ubuntu-latest
     steps:
@@ -205,6 +223,15 @@ jobs:
       - name: Verify DNS lease restoration and bounded diagnostics
         run: python3 -B test/test_network_dns.py -v
 
+      - name: Verify Sensor dog tracker ownership, routes, storage, GPS and sleep
+        run: |
+          python3 -B test/test_tracker_route_policy.py -v
+          python3 -B test/test_sensor_tracker_store.py -v
+          python3 -B test/test_tracker_owner_response.py -v
+          python3 -B test/test_sensor_tracker_client.py -v
+          python3 -B test/test_sensor_tracker_gps.py -v
+          python3 -B test/test_sensor_tracker_sleep.py -v
+
       - name: Verify Companion contact and channel TX routing
         run: |
           python3 -B test/test_companion_tx_routing.py -v