tools: add --health flag to mavsummarize.py

[Aryan95614]

Adds a --health flag to mavsummarize.py that prints a quick-look flight health report after the normal summary. Covers:

• Vibration — peak VibeX/Y/Z from VIBE messages, total accelerometer clipping count
• EKF — peak innovation test ratios (SV, SP, SH) with auto-detection of EKF3 (XKF4) vs EKF2 (NKF4), OR-union of fault status bits, and a status assessment (OK / MARGINAL / WARNING)
• Battery — first, last, and minimum voltage from BAT messages
• GPS — worst HDop and minimum satellite count from GPS messages
• Errors — deduplicated ERR subsystem codes with human-readable names

Sample output:

=== Flight Health ===
Vibration:  max X=12.3 Y=15.1 Z=22.4 m/s² | Clips: 0
EKF:        max SV=0.45 SP=0.32 SH=0.21 (XKF4) | Faults: 0 | OK
Battery:    12.6V → 11.2V (min 11.0V)
GPS:        worst HDop=1.8 | min sats=9
Errors:     none

When --health is not passed, behavior is unchanged. The flag expands the recv_match type filter to include VIBE, XKF4, NKF4, BAT, GPS, and ERR in the same single-pass read.

Also fixes a minor pre-existing bug where PrintSummary() referenced the loop variable filename instead of the function parameter logfile.