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).

data/ddl/06_bans.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS `bans` (
+    `id` UUID PRIMARY KEY DEFAULT UUID(),
+    `userId` UUID NOT NULL,
+    `message` TEXT NOT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT TRUE,
+    `expiresAt` TIMESTAMP NOT NULL,
+    `createdAt` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT `fk_ban_userId` FOREIGN KEY (`userId`) REFERENCES `users` (`id`) ON DELETE CASCADE
+)