Watches a configurable list of external ADIF files (fldigi RTTY logbook,
N1MM, VarAC…) and imports newly appended QSOs automatically. Each record
goes through the existing UDP-log path, so it gets full enrichment, ±2-minute
dedup (shared udpLogMu, can't race the UDP auto-log) and automatic upload to
the configured external services — no per-file toggles like Log4OM.
A newly added file starts at its current size (offset -1 sentinel → size on
first scan), so the QSOs already in it are NOT bulk-imported; only contacts
logged after it was added come in. Reads only up to the last complete <eor>
so a half-written record waits. Handles truncation/rotation (re-reads from 0,
dedup protects) and persists per-file offsets without clobbering a concurrent
UI edit of the file list.
New Settings → ADIF monitor section: master enable + add/remove/toggle files.
Backend emits adifmon:imported → the grid refreshes and a toast reports the
count. i18n EN + FR.
