- Extract PathParser.valid_callsign?/1 and reuse from the calibration
Mix task instead of duplicating the regex.
- Document raise behavior on Aprs.recent_packets_with_paths/1 and
Aprs.station_positions/1 (already noted in moduledoc; @doc reinforces
for callers reading the function head).
- Note in the BandConfig guard comment why it sits before the Oban pause
(so a misconfig exits without leaving queues paused).
- Reword the band-mismatched-negatives note as a v1 limitation (no TODO
tag — codebase convention is zero TODOs).
- decode_packet_row no longer guards Decimal.to_float / DateTime.from_naive
with passthrough clauses — Postgrex returns Decimal for numeric and
NaiveDateTime for timestamp without time zone, so the WHERE clause
filters out the only path that could have hit the alternate branches.
- recent_packets_with_paths shifts :since to UTC before to_naive so a
caller passing a non-UTC %DateTime{} doesn't silently match the wrong
window.
- moduledoc now documents that the module raises on connection/SQL
errors and is unsafe in async contexts without a catch.
