fix(plex): pin the compact currency format instead of inheriting the engine's

`{ notation: "compact", maximumFractionDigits: 1 }` leaves the MINIMUM to the
engine, and engines disagree: the same options render "$160.0M" on Node 22 and
"$160M" on Node 24 (measured 2026-09-20 in node:22-bookworm, the image the
server gate runs, against the local Node 24.17). Browsers split along the same
line, so a viewer on an older engine saw the padded form. `minimumFractionDigits:
0` makes both render "$160M"; the plain `compact` helper (vote counts) was
measured too and already agrees on both.

This is why the server gate's frontend job was red on PlexInfo since 09-17 while
the local gate was green: the two run different Node versions.

frontend/src/components/PlexInfo.tsx

@@ -35,6 +35,11 @@ const money = (n: number) =>
     notation: "compact",
     style: "currency",
     currency: "USD",
+    // The minimum is load-bearing, not a default written out: given only a maximum, a compact
+    // format is free to pad to it. The very same options render "$160.0M" on Node 22 and "$160M"
+    // on Node 24 (measured 2026-09-20 — the server gate was red on exactly this while the local one
+    // was green), and browsers split along the same line. Pin it rather than inherit the engine's.
+    minimumFractionDigits: 0,
     maximumFractionDigits: 1,
   }).format(n);