Add T6 Zombies fleet support with Plutainer configuration

src/lib/server/fleet/config-compose.ts

@@ -14,7 +14,7 @@
 //   - Line endings default to \n for the composed output. Baseline CRLF is
 //     preserved if the baseline uses CRLF throughout.
 
-import { T5_ZOMBIE_MAPS } from './map-aliases.js';
+import { selectedZombieMap, mapRotation } from './map-aliases.js';
 
 interface CfgLine {
     kind: 'set' | 'raw';
@@ -130,17 +130,18 @@ export function composeServerCfg(
     baselineText: string,
     overlays: OverlayInput[],
     game: string | null,
-    map: string | null
+    map: string | null,
+    mapSlug?: string | null
 ): string {
     const composed = composeCfg(baselineText, overlays);
-    const selected = game === 't5' ? T5_ZOMBIE_MAPS.find((entry) => entry.canonical === map) : undefined;
+    const selected = selectedZombieMap(game, map, mapSlug);
     // Legacy/unrecognized servers retain their existing config semantics.
     if (!selected) return composed;
 
     const eol = parseCfg(composed).eol;
     const lines = composed.split(/\r?\n/);
     lines.pop(); // composeCfg always emits a trailing newline.
-    const rotation = `set sv_maprotation "map ${selected.canonical}"`;
+    const rotation = `set sv_maprotation "${mapRotation(selected)}"`;
     // Dvars are case-insensitive. Remove duplicate assignments, including
     // seta and bare forms, so old map-choice overlays cannot undo selection.
     const isRotation = /^\s*(?:(?:set|seta)\s+)?sv_maprotation\s+/i;