refacto: Changing actions reset windows + display

server/db/gameDb.js

@@ -1,7 +1,7 @@
 import { pool } from "./pools.js";
 import { loadConfigFile, getConfig } from "../configLoader.js";
 import { computeWorldSeedState } from "../worldSeed.js";
-import { nextNoonUtc, resetAllUserActions, getUsersByIds } from "./usersDb.js";
+import { nextResetUtc, resetAllUserActions, getUsersByIds } from "./usersDb.js";
 
 let lastSeedSlot = null;
 
@@ -187,7 +187,7 @@ export async function ensureSeedEpoch() {
     await pool.query("DELETE FROM team_cell_visibility WHERE world_seed != $1", [worldSeed]);
     // Reset both team and user quotas to server defaults (no bonuses) for the new period
     const cfg = getConfig();
-    const nextNoon = nextNoonUtc().toISOString();
+    const nextNoon = nextResetUtc(cfg.actionsResetIntervalHours ?? 12).toISOString();
     await pool.query(
       `INSERT INTO team_action_quota (team, actions_remaining, quota_reset_at)
        VALUES ('blue', $1, $2), ('red', $1, $2)

server/db/usersDb.js

@@ -29,12 +29,28 @@ export async function initUserActionQuotaSchema() {
 
 /** Returns the next noon (12:00:00) UTC after the current moment. */
 export function nextNoonUtc() {
+  return nextResetUtc(12);
+}
+
+/**
+ * Returns the next reset timestamp UTC based on a repeating interval.
+ * @param {number} intervalHours - must be a divisor of 24 (1,2,3,4,6,8,12,24)
+ */
+export function nextResetUtc(intervalHours) {
   const now = new Date();
-  const noon = new Date(Date.UTC(
-    now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate(), 12, 0, 0, 0
+  const utcHours = now.getUTCHours();
+  const slotsPassed = Math.floor(utcHours / intervalHours);
+  const nextSlotHour = (slotsPassed + 1) * intervalHours;
+  if (nextSlotHour < 24) {
+    return new Date(Date.UTC(
+      now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate(),
+      nextSlotHour, 0, 0, 0
+    ));
+  }
+  return new Date(Date.UTC(
+    now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate() + 1,
+    0, 0, 0, 0
   ));
-  if (noon <= now) noon.setUTCDate(noon.getUTCDate() + 1);
-  return noon;
 }
 
 // ── Queries ───────────────────────────────────────────────────────────────────