Add bans, user cache, auth routes & token changes

Introduce user bans and caching, extend schemas, and add auth/user endpoints. Adds bans DDL and banRepo plus adminService to manage bans; introduces modules/cache for in-memory user caching used by authService and userService. Updates users and credentials DDLs (role, isDisabled, shouldReset). Changes tokensService to include role in access tokens and store refresh tokens as SHA-256 hashes. Updates repos (credentials create RETURNING, usersRepo.updateProfile positional params), enhances authService with isLogged/isNotLogged middleware, ban checks, and refreshed token flow. Adds auth routes (login, logout, refresh, register) and user routes (/me).

services/adminService.js

@@ -0,0 +1,38 @@
+const { DefaultError } = require("../errors/errors")
+const banRepo = require("../repositories/banRepo")
+
+async function banUser(userId, message, expiresAt) {
+    const existingBan = await banRepo.isBanned(userId)
+    if (existingBan) {
+        throw new DefaultError(409, "Already has an active ban.", "Duplicate active ban.")
+    }
+    return await banRepo.banUser(userId, message, expiresAt)
+}
+
+async function unbanUser(banId) {
+    const existingBan = await banRepo.isBanned(userId)
+    if (!existingBan) {
+        throw new DefaultError(404, "No active ban.", "No active ban found.")
+    }
+    return await banRepo.unbanUser(banId)
+}
+
+
+async function isUserBanned(userId) {
+    const ban = await banRepo.isBanned(userId)
+    if (!ban) {
+        return false
+    }
+
+    if (new Date(ban.expiresAt) <= new Date()) {
+        await banRepo.deactivate(ban.id)
+        return false
+    }
+    return true
+}
+
+module.exports = {
+    banUser,
+    unbanUser,
+    isUserBanned
+}