Complete the sensor-check standardization: existing events need their .h5
regenerated to gain the v2 /sensor_check group.
* backfill_thor_events.py attaches the decoded series-4 traces
(micromate.sensor_check) on its own IDF decode path, mirroring
save_imported_idf, so regenerated Thor .h5 files get the group. Series-3
backfill needs no change — it re-decodes via read_blastware_file, which now
attaches the traces itself.
* TOOL_VERSION 0.30.0 → 0.31.0 so the standard backfill regenerates every
event (no --force): the tool now produces the /sensor_check group. Purely
additive — no decoded value changes.
* CHANGELOG (Unreleased): sensor-check now series-3 + series-4, standardized
into the .h5 (schema v2), with the ⚠ backfill note; FFT + compliance stay
no-backfill (they read existing .h5 samples).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDXjZCr4RqT2U3QvMDhgzf