v0.6.0

v0.6.0 - 2026-06-29

New surfaces for working with a feed live (--watch, browser playground),
acting on findings (fix), and sharing results (stats --format markdown,
conformance corpus), plus a new cross-feed operational check (TODS-W315).

Added:

• tods-validate validate --watch re-validates whenever the feed changes
  (polls the files), the cheap interim ahead of editor/LSP integration.
• A browser playground (web/) that validates a feed entirely in the browser
  via Pyodide, with no upload, deployable to GitHub Pages. The Python it calls
  is guarded by tests; the page itself needs a browser to verify.
• TODS-W315: a run event that works a trip end to end should start at the
  trip's first stop and end at its last stop (in the supplemented
  stop_times.txt); a mismatch is a warning, skipped for mid-trip events. The
  companion GTFS now ingests stop_times, so this checks an operational
  consistency constraint no GTFS-only validator can see.
• tods-validate fix applies safe, deterministic fixes — currently trimming the
  TODS-W206 whitespace padding that stops IDs from matching. It is a dry run by
  default and writes a cleaned, UTF-8/no-BOM package with -o.
• tods-validate stats --format markdown prints a feed profile (now including a
  date range and a file-presence list) suitable for pasting into an issue or a
  working-group thread.
• A downloadable conformance corpus, attached to each release: every fixture
  plus an expectations.json mapping each to the rule IDs it should produce, so
  another validator can run the suite without cloning the repo
  (scripts/build_conformance_corpus.py).