Add reliable Android BLE ride recorder

tests/fixtures/README.md

@@ -78,6 +78,35 @@ removed before production firmware was built and flashed.
   beyond the 10.24-second queue window, so sequences 1,024 through 4,021 were
   intentionally lost; the single 2,998-sample gap, matching queue-overflow total,
   demonstrates bounded buffer exhaustion rather than a suspended output task.
+- `ride_20260820_090607.trk` — SHA-256
+  `c938934c0905748d2f8d8be61cff1ff446d8415b34850628654967398fd7d91f`.
+  This is the Android recorder acceptance capture after increasing the firmware
+  queue to 3,072 samples (30.72 seconds). Bluetooth was deliberately disabled
+  from the phone for five seconds and then restored. The completed capture
+  contains 2,578 consecutive packets and 19,984 consecutive samples, both
+  starting at sequence zero, with zero CRC/header errors, packet/sample gaps,
+  sensor failures, queue overflows, transport send failures, invalid ACKs,
+  loop overruns, or trailing bytes. Firmware status records one disconnect and
+  one replay. The Android recorder durably deduplicated that exact replay, as
+  recorded in `ride_20260820_090607.session.json` (SHA-256
+  `b16a8f0c213a14fd2760b6efba1c6288f3631e57a331c553893e281dce047888`),
+  and closed the session with `complete=true` and no error.
+
+  All 19,983 sample intervals are contiguous. Of those, 8,745 differ from
+  exactly 10 ms. Across all intervals, absolute deviation is 0 us median, 40 us
+  p95, 240 us p99, and 1,630 us maximum; among only the off-grid intervals it is
+  10 us median, 60 us p95, and 750 us p99. Cumulative error is -726 us over
+  199.83 seconds. The capture also has six explicitly flagged ADXL345 overruns;
+  timestamps are taken before both I2C reads and therefore understate delays
+  caused by preemption between the timestamp and physical sensor access.
+
+The post-rename phone smoke test for application ID
+`com.jsjdesigns.trikkerecorder` was verified live but not retained as a fixture.
+It closed cleanly with 366 consecutive frames and 2,832 consecutive samples,
+zero CRC/header errors, packet/sample gaps, drops, queue overflows, loop
+overruns, or trailing bytes. The package-only rename did not change the Android
+protocol or storage implementation, and the retained outage fixture above
+remains the authoritative end-to-end acceptance artifact.
 
 `tests/test_trikke_protocol.py` verifies the hashes, parses the captures in
 fragmented chunks, and asserts these signatures so the hardware evidence remains