test(fixtures): seed SHITTY release bucket with 15 anti-regression cases

Add 15 expected.yaml fixtures under tests/fixtures/releases/shitty/
covering the awkward but real-world release names from the downloads
folder. Each fixture locks in the current parse_release behavior so
future parser changes are intentional, not silent drift.

Cases captured:
- Angel INTEGRALE 3-level hierarchy (tv_complete media_type)
- Buffy custom French title with dots preserved
- Archer S14E09E10E11 multi-episode (E11 lost — tech debt)
- Notre Planète lowercase s01e01
- Vinyl ' - 1x01 - FHD' (stray dash artifact — tech debt)
- Deutschland.83 (year-suffix as part of title)
- Tatortreiniger S01-06 range (falls to movie — tech debt)
- Derry Girls duplicated title
- Jurassic Park bare folder (media_type=unknown)
- La Nuit au Musée bilingual MULTI
- Chérie j'ai agrandi (ASCII-stripped apostrophe, parses fine)
- Honey Don't (unescaped apostrophe — full AI-path degeneration)
- Hook MULTi.SUBS movie with Subs/ folder
- Predator Badlands space separators (group=UNKNOWN — tech debt)
- Westworld S04 Subs.Only (no video file)

Each fixture also captures the future 3-flow routing (library /
torrents / seed_hardlinks) ahead of the organize_media refactor.

Suite: 1011 passed, 8 skipped.

CHANGELOG.md

@@ -21,8 +21,18 @@ callers).
   each documenting an expected `ParsedRelease` plus the future `routing`
   (library / torrents / seed_hardlinks) for the upcoming `organize_media`
   refactor. EASY bucket seeded with 5 cases (movie, single-episode, season
-  pack, movie + noise, YTS bracket-heavy). Parametrized over
-  `tests/domain/test_release_fixtures.py` for anti-regression.
+  pack, movie + noise, YTS bracket-heavy). SHITTY bucket seeded with 15
+  anti-regression cases covering: 3-level INTEGRALE hierarchy (Angel),
+  French custom titles (Buffy, La Nuit au Musée, Chérie j'ai agrandi),
+  multi-episode chain `S14E09E10E11` (Archer, captures E11 loss),
+  lowercase `s01e01` (Notre Planète), `NxNN` with ` - ` separators
+  (Vinyl, captures dash artifact), title-with-year-suffix (Deutschland.83),
+  season-range `S01-06` (Tatortreiniger, captures movie misclassification),
+  duplicated title (Derry Girls), bare folder name (Jurassic Park,
+  media_type=unknown), apostrophe-in-name (Honey Don't, captures full AI-path
+  degeneration), SUBS-tag movie (Hook), space separators (Predator Badlands,
+  captures group=UNKNOWN), subs-only release (Westworld S04).
+  Parametrized over `tests/domain/test_release_fixtures.py` for anti-regression.
 - **`NxNN` alt season/episode form supported** by `parse_release`. Releases like
   `Show.1x05.720p.HDTV.x264-GRP` and `Show.2x07x08.1080p.WEB.x265-GRP` (multi-ep
   alt form) now parse as TV shows.