fix(media): a TV plan that follows the authorities it was given

A dry run of the TV planner against the real 58k-file library produced a root
series called "01 NCOP" out of a bonus subfolder, copied Jellyfin's stale
numbering (every file under SNL 16-20/Season 16..19 carries season 16 episode
20; one Gundam row says season 2004), and lost subtitles a scene pack had
buried in Subs/<release-name>/.

- Folders now RESOLVE a series and never invent one: a folder's words match a
  registered name as a token run ("(CBB) Tengen Toppa Gurren Lagann - The
  Complete Series (BD 1080p)" names Tengen Toppa Gurren Lagann), and folder
  words alone name nothing, so an unknown pack's bonus folder parks instead of
  opening a new show at the library root.
- Numbering priority: the marker the file's own name states, then the Season NN
  folder plus the number the name leads with inside it, then the provider row.
  A row that still insists on season 1989 parks its file rather than creating
  Season 1989.
- The provider row keeps identity: the registered name and its year survive a
  file whose own marker numbers it, and the pack index a release leads with
  ("4a. Seed DESTINY") is folded out of the folder name.
- A sidecar searches every ancestor folder for the video it names, not just the
  parent, so Subs/<release-name>/<release>.jpn.srt follows its episode.
- The shared bonus-folder test no longer reads an index as a title: name_words
  drops "extras" as release junk, so "01. Extras" reduced to "01" and matched
  the "01" of "NCOP 01", cancelling the bonus evidence. Only words can name a
  film.

tests/media_shows.bats

@@ -55,6 +55,8 @@ setup() {
     at "$SEASON/The.Examples.S01E01.Pilot.1080p.x265.mkv" 9000
     at "$SEASON/The.Examples.S01E01.Pilot.1080p.x265.en.srt" 200
     at "$SEASON/The.Examples.S01E01.Pilot.1080p.x265.mkv.forced.srt" 250
+    # A scene pack buries its subtitles two levels down, in Subs/<release-name>/.
+    at "$SEASON/Subs/The.Examples.S01E01.Pilot.1080p.x265/The.Examples.S01E01.Pilot.1080p.x265.jpn.srt" 220
     at "$SEASON/folder.jpg" 300
     at "$SEASON/Trailers/teaser.mkv" 1000
     at "$SEASON/tvshow.nfo" 400
@@ -69,6 +71,12 @@ setup() {
     # A file no authority numbers, and a long file the movie provider knows.
     at "$LIB/Orphan Tapes/clip001.mp4" 3000
     at "$LIB/Longform/Some Documentary Special (2015).mkv" 8000
+    # A bonus folder inside a release pack whose own name is not the show's. The
+    # pack's rows name the show; the bonus folder may never invent a series.
+    at "$ANIME/01. Extras/NCOP 01.mkv" 1200
+    # A season folder whose rows are stale: the database numbers every file of this
+    # pack season 16 episode 20, four seasons' worth of them.
+    at "$LIB/SNL Pack/Season 19/01 Charles Barkley, Nirvana.avi" 6000
     # One episode-shaped file loose at the library root.
     at "$LIB/Loose.Show.S02E03.720p.WEB-DL.mkv" 4000
 
@@ -93,6 +101,8 @@ PY
     title_row "$LIB/Dupes/Show.Two.S01E01.720p.other.mkv" "Show Two" 2016 1 1
     title_row "$LIB/Dupes/Show.Two.S01E02-E03.720p.mkv" "Show Two" 2016 1 2
     title_row "$LIB/Loose.Show.S02E03.720p.WEB-DL.mkv" "Loose Show" 2019 2 3
+    title_row "$LIB/SNL Pack/Season 19/01 Charles Barkley, Nirvana.avi" \
+        "SNL Pack" "" 16 20
 }
 
 plan() {
@@ -144,6 +154,12 @@ PY
         = "$LIB/The Examples (2010)/Season 01/The Examples S01E01.en.srt" ]
 }
 
+@test "a subtitle two folders down inside Subs/<release-name>/ still follows its episode" {
+    plan
+    [ "$(dst "$SEASON/Subs/The.Examples.S01E01.Pilot.1080p.x265/The.Examples.S01E01.Pilot.1080p.x265.jpn.srt")" \
+        = "$LIB/The Examples (2010)/Season 01/The Examples S01E01.jpn.srt" ]
+}
+
 @test "a subtitle that carries the container's word in its own name still follows the episode" {
     plan
     [ "$(dst "$SEASON/The.Examples.S01E01.Pilot.1080p.x265.mkv.forced.srt")" \
@@ -168,6 +184,19 @@ PY
         = "$LIB/Anime Pack/Season 01/Anime Pack S01E05.mkv" ]
 }
 
+@test "a bonus folder inside a release pack belongs to the pack's show, not to its own name" {
+    plan
+    [ "$(dst "$ANIME/01. Extras/NCOP 01.mkv")" = "$LIB/Anime Pack/extras/NCOP 01.mkv" ]
+    [ -z "$(awk -F '\t' '$3 ~ /\/01\. Extras\// {print $3}' "$OUT")" ]
+}
+
+@test "a Season folder outvotes the stale row its files carry" {
+    plan
+    [ "$(dst "$LIB/SNL Pack/Season 19/01 Charles Barkley, Nirvana.avi")" \
+        = "$LIB/SNL Pack/Season 19/SNL Pack S19E01.avi" ]
+}
+
+
 @test "one file holding two episodes keeps both numbers in its name" {
     plan
     [ "$(dst "$LIB/Dupes/Show.Two.S01E02-E03.720p.mkv")" \