fix: dump crash log without usb plugged, bump release log to INFO (#1332)

## Summary

Follow-up
https://github.com/crosspoint-reader/crosspoint-reader/pull/1145

- Fix log not being record without USB connected
- Bump release log to INFO for more logging details

---

### AI Usage

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please be transparent about their usage as it
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Did you use AI tools to help write this code? **NO**

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Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

platformio.ini

@@ -78,7 +78,7 @@ build_flags =
   ${base.build_flags}
   -DCROSSPOINT_VERSION=\"${crosspoint.version}\"
   -DENABLE_SERIAL_LOG
-  -DLOG_LEVEL=0 ; Set log level to error for release builds  
+  -DLOG_LEVEL=1 ; Set log level to info for release builds
 
 [env:gh_release_rc]
 extends = base