- consolidate Haversine: CoordinateUtils delegates to GeoUtils;
InfoLive.haversine/4 reuses it (m -> km)
- AprsSymbol: collapse 3 sprite-info builders onto build_sprite_info/2
and add a sprite_info @type
- DataBuilder: 3 weather unit converters share convert_unit/4 with
explicit clauses for "N/A", numeric, and binary inputs
- mobile_channel: do_callsign_match/2 uses pattern-match clauses for
wildcard handling instead of nested if
- info_live: replace nested case in position_changed? with multi-clause
coords_changed?/1; format_timestamp_for_display pipelines into a
guarded build_timestamp_display/1
- api_docs_live: collapse chained single-key assigns into keyword-list
assign/2 calls
- add strict @spec coverage on all touched helpers; tighten new specs to
match dialyzer success typing (no contract_supertype warnings)
Graham McIntire
3f2e0252d5