v0.0.2

• Clean-source discovery: Tacita.downloadPodcast gained optional
  declaredEnclosureBytes / expectedDurationSeconds params (the feed's
  enclosure length and itunes:duration). When provided with cutAds, tacita first
  probes for a serving that provably matches the feed-declared size/duration — the
  pinned-tier serving, a static fallback_url leaked in the host's redirect chain
  (Audioboom), or a bot-tier serving (Simplecast) — and downloads that copy directly,
  skipping the diff. Fixes hosts that inject sticky fill on every tier, where an
  immediate same-session reference is blind (see docs/ALGORITHM.md, 2026-07-04 research).
  Note: callers implementing Tacita themselves must add the new params.

• Downloader internally supports 1-byte Range probes (final URL + Content-Length) and
  per-call user-agent overrides to power the above; the pinned default UA is unchanged.

• Added an optional log: (String) -> Unit param to Tacita.withClient — receives diagnostic
  log lines (currently one per ad-cut pass, reporting its outcome); defaults to discarding them

• Added Tacita.withLogger(log) — returns an instance with the default http-client factory but
  a custom logger

• Downloader now throws on non-2xx responses instead of saving the error body as the
  episode file, and deletes the partial file when a download fails mid-stream

• Reference promotion (overwrite + cutAds over an existing output) now replaces an
  existing stale reference file on all platforms (previously could throw on Windows)

• Removed dead internal Downloader.fetchString (RSS fetching lives in consuming apps)

• New test coverage: direct Downloader tests (status handling, progress with/without
  Content-Length, parent dir creation, pinned user-agent), Id3ChapterShifter unit tests
  (v2.3/v2.4 size encoding, bail-outs, overlapping cuts, real byte offsets), and
  Mp3SegmentParser MPEG2/MPEG2.5 + truncated-frame edge cases