Perk-a-cola redesign + surface RCON map/gametype/roster/health

Themes the fleet manager around the Electric Cherry perk-a-cola from Mob of
the Dead — cherry-red art-deco label with electric cyan discharge. New
design tokens (Alfa Slab One + Inter + JetBrains Mono, self-hosted), full
redesign of layout/dashboard/cards/detail page, tokens pass on
deployments/betas/pipeline/beta/diff, cherry+lightning favicon.

Lights up server data that RCON was already fetching but the UI dropped.
parsePlayerRoster() extracts num/score/ping/guid/name from both status
dialects. Worker persists last_map/last_gametype/last_roster/last_seen_at/
last_error (new columns with idempotent boot-time ALTERs) and emits them
over SSE. Fleet cards now show health dot, map · gametype, top-3 roster
preview, and last-seen. Detail page adds a sortable full roster with
distinct empty-lobby vs offline states. New health classifier
(online/stale/offline) drives the visual state.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/app.html

@@ -2,7 +2,7 @@
 <html lang="en">
     <head>
         <meta charset="utf-8" />
-        <link rel="icon" href="%sveltekit.assets%/favicon.png" />
+        <link rel="icon" type="image/svg+xml" href="%sveltekit.assets%/favicon.svg" />
         <meta name="viewport" content="width=device-width, initial-scale=1" />
         <meta name="color-scheme" content="dark light" />
         <title>Electric Cherry</title>