Consolidates the scattered YouTube-URL parsing (the clean, renderer-contained
half of H2):
- Move the complete youtubeId (watch/shorts/embed/live/youtu.be) into
lib/urlHelpers.ts as the single home.
- thumb.ts, queueStats.ts (sameVideo), and store/downloads.ts (titleFromUrl)
now import it; the three ad-hoc reimplementations are removed.
- titleFromUrl gains correctness: it previously labeled ANY host with a ?v=
param as "YouTube video (…)" and missed youtu.be/shorts; it's now host-correct
and covers every YouTube shape. sameVideo now also dedupes /shorts/ID against
/watch?v=ID.
- Unit-tested in test/clipboardLink.test.ts (+4 cases, 247 pass).
The formatter half of H2 is deferred to travel with H4: the renderer re-parses
speed/eta strings only because raw numbers aren't carried across the IPC boundary
(H4), and fmtBytes (1024) vs formatSpeed (1000) differ intentionally.
typecheck + 247 tests + eslint + prettier green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
debont80
d050e48af6