1.0.0

First public release. Download, inspect, and filter Swiss national NeTEx
timetable packages from opentransportdata.swiss.

Added

• CLI binary swiss-netex with help, version, download, operators,
  lines, filter, and extract
• download — resolve the latest (or year-pinned) national NeTEx zip via the
  public catalog + dataset page HTML, stream to disk, cache under
  ~/.cache/swiss-netex (override with --cache-dir / --force)
• operators / lines — discovery tables from RESOURCE / SERVICE only
  (TSV when piped; aligned columns on a TTY). Optional --operator /
  --line filters on lines. Omit --from to download/cache first
  (-y / -d / -c / -f, same rules as extract)
• filter — operator/line filter for a local zip or directory package:
  streaming SERVICE + TIMETABLE passes, transitive RESOURCE / SERVICE /
  SITE / SERVICECALENDAR / COMMON rewrite, drop empty timetable shards,
  README.txt in the output zip
• extract — download (when --from omitted) + filter in one command
• Operator aliases: GO number, ch:1:Operator:*, SBOID, ShortName
  (repeatable --operator = union). Line aliases: PublicCode, id, SLNID,
  ShortName, Name. With explicit --line, journeys must carry a matching
  LineRef (operator-only fallback only when no line filter is set)
• COMMON connection entities (JourneyMeeting, InterchangeRule) kept only
  when every tracked journey/stop/line ref still resolves in the package
• Bare -o stem without extension becomes stem.zip for filter/extract;
  existing directories / trailing / still get the default *_op-….zip
  name inside
• National-scale streaming: short-lived fork workers for TIMETABLE shards
  and support frames, parent byte pre-scan to skip empty shards, streamed
  kept-journey bodies, non-DOM COMMON scanner
• Env knobs: SWISS_NETEX_TT_WORKERS (default CPU count; 1 = serial),
  SWISS_NETEX_TT_BATCH (default 1 shard/child), SWISS_NETEX_NO_FORK=1
• SwissNetex::Package, ResourceFrame, Operators, Lines, Filter,
  Download, Extract library entry points
• Minitest suite (fixture packages only; no national zip in CI), GitHub
  Actions CI + tag publish gated on test/lint, minimal RuboCop, RubyGems
  trusted-publish on version tags
• rake publish VERSION=x.y.z dates CHANGELOG, verifies, tags, and pushes;
  the tag workflow creates the GitHub Release from that version section

Fixed

• Filtered XML no longer keeps blank “holes” where dropped entities used to sit
  (streaming whitespace collapse in SERVICE/SITE/RESOURCE/SERVICECALENDAR,
  TIMETABLE, and COMMON writers — no full DOM pretty-print)

Notes

• Tool is MIT; timetable data remains under OpenTransportData terms
• Cache key is the remote filename (export timestamp embedded); a positive-size
  file must also open as a zip before it counts as a hit. Use --force to
  re-download
• Downloads request Accept-Encoding: identity so size checks compare
  wire Content-Length to the bytes written on disk
• Filter/extract write the output zip via a same-directory temp file + rename
• TIMETABLE TrainNumber defs are kept whether they appear before or after
  vehicleJourneys (defs-first inputs may emit trainNumbers after journeys)
• Filtered-package README.txt and public README document Swiss-profile
  expectations: ValidDayBits calendars, closed COMMON connections, sparse
  TIMETABLE shard indices
• Peak system RSS scales roughly with worker count × largest kept shard;
  prefer a machine with several GB free RAM for full national filters
• extract / operators / lines: --from cannot be combined with
  --dataset / --year / --force / --cache-dir (download-only flags)

See CHANGELOG.md for the full history.