fix(parvagues): Montreuil tracklist — Aria→Mafia Sans Serif + repair dangling .tidal ref

The canonical tracklist carried the old track name "Aria Sans Serif" and, worse,
a `file` pointing at live/collab/raph/aria_sans_serif.tidal — a path that no
longer exists. The track was renamed to Mafia Sans Serif in the score long ago
(real file: mafia_sans_serif.tidal); only the published metadata lagged. Since
the track identity in the armada catalog pipeline IS its .tidal path, the
dangling ref meant the catalog keyed this track on a non-existent score.

Fixed both the display name and the file ref to the real score. This is the
canonical root: the armada catalog regenerates from here (tide.py build).

content/lives/2026/montreuil-algorave/tracks.json

@@ -381,8 +381,8 @@
       "loop": "/images/parvagues/lives/ig-live-highlight/22_montreuil26_3904132082700135316_loop.mp4"
     },
     {
-      "name": "Aria Sans Serif",
-      "file": "live/collab/raph/aria_sans_serif.tidal",
+      "name": "Mafia Sans Serif",
+      "file": "live/collab/raph/mafia_sans_serif.tidal",
       "bpm": 160,
       "style": "dnb",
       "duration": 255.26,