feat: preserve and encode raw 0C record in sidecar extensions for offline analysis

minimateplus/client.py

@@ -1362,6 +1362,20 @@ def _decode_waveform_record_into(data: bytes, event: Event) -> None:
 
     Modifies event in-place.
     """
+    # ── Always preserve the raw 210 bytes ─────────────────────────────────────
+    # The 0C record carries far more than just peaks + project strings:
+    # ZC Freq, Time of Peak, Peak Acceleration, Peak Displacement, Vector
+    # Sum Time, MicL Time of Peak, and the per-channel sensor self-check
+    # results (Test Freq / Ratio / Pass-Fail) all live somewhere in this
+    # 210-byte block.  Their byte offsets are not yet mapped — keeping the
+    # raw bytes lets us decode those fields offline once we have a paired
+    # (raw 0C, BW-report) sample to fit against.  Cheap to keep around
+    # (210 bytes per event).
+    try:
+        event._raw_record = bytes(data[:210])
+    except Exception:
+        pass
+
     # ── Record type + format detection ────────────────────────────────────────
     # `record_type` is the user-facing label ("Waveform" for any triggered
     # event regardless of timestamp-header layout).  `fmt` is the internal