Add Void difficulty and publish changelogs

shared/tournaments.ts

@@ -16,17 +16,24 @@ export const tournamentSettings = z
     name: safeName,
     datasetId: z.string().uuid(),
     difficulty: z.union([
-      z.enum(["easy", "normal", "hard"]),
+      z.enum(["easy", "normal", "hard", "void"]),
       z.string().uuid(),
     ]),
     playerLimit: z.number().int().min(2).max(32),
     roundCount: z.number().int().min(1).max(10),
-    roundTimeSeconds: z.number().int().min(15).max(3000).multipleOf(15),
+    roundTimeSeconds: z.number().int().min(10).max(3000),
     timerMode: z.enum(["shared", "perMini"]).default("shared"),
     startsAt: z.string().datetime({ offset: true }),
     announceDiscord: z.boolean(),
   })
   .strict()
+  .refine(
+    (value) =>
+      value.difficulty === "void"
+        ? value.timerMode === "perMini" && value.roundTimeSeconds === 10
+        : value.roundTimeSeconds >= 15 && value.roundTimeSeconds % 15 === 0,
+    "Void requires a separate 10-second timer; other tournament timers use 15-second steps",
+  )
   .refine(
     (value) => value.timerMode !== "perMini" || value.roundTimeSeconds <= 600,
     "Mini-round timers allow at most 600 seconds",