Update user data handling and password storage mechanisms

Refactor user model and storage implementations to correctly handle password hashing (using `passwordHash` instead of `password`), update field names for profile images to `avatar`, and ensure consistent user data mapping between database and in-memory storage. Includes schema adjustments for `users` table.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 68e1a8f7-084c-4a75-801e-34657bd7a71b
Replit-Commit-Checkpoint-Type: full_checkpoint
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shared/schema.ts

@@ -39,14 +39,15 @@ export const videos = pgTable("videos", {
 
 // User table for authentication and video ownership
 export const users = pgTable("users", {
-  id: varchar("id").primaryKey().default(sql`gen_random_uuid()`),
+  id: varchar("id").primaryKey(),
   username: varchar("username", { length: 50 }).notNull().unique(),
   email: varchar("email", { length: 255 }).notNull().unique(),
-  password: varchar("password", { length: 255 }).notNull(),
+  passwordHash: varchar("password_hash", { length: 255 }).notNull(),
   firstName: varchar("first_name", { length: 100 }),
   lastName: varchar("last_name", { length: 100 }),
-  profileImageUrl: text("profile_image_url"),
-  isAdmin: boolean("is_admin").default(false).notNull(),
+  avatar: text("avatar"),
+  isActive: boolean("is_active").default(true).notNull(),
+  isAdmin: boolean("is_admin").default(false),
   isSuperAdmin: boolean("is_super_admin").default(false).notNull(),
   createdAt: timestamp("created_at").notNull().default(sql`CURRENT_TIMESTAMP`),
   updatedAt: timestamp("updated_at").notNull().default(sql`CURRENT_TIMESTAMP`),