(refactor) removed username from logic

migrations/20251107073144_create_users_table.sql

@@ -1,14 +0,0 @@
--- migrations/XXXXXX_create_users_table.sql
-
-CREATE TABLE IF NOT EXISTS users (
-    id SERIAL PRIMARY KEY,
-    username VARCHAR(50) UNIQUE NOT NULL,
-    password_hash TEXT NOT NULL,
-    bank_user_id VARCHAR(50) NOT NULL,  -- e.g., "team275-1"
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-    
-    CONSTRAINT username_length CHECK (char_length(username) >= 3)
-);
-
-CREATE INDEX IF NOT EXISTS idx_users_username ON users(username);
-CREATE INDEX IF NOT EXISTS idx_users_bank_user_id ON users(bank_user_id);

migrations/20251107120039_drop_and_recreate_users_table.sql

@@ -0,0 +1,12 @@
+-- Drop old table
+DROP TABLE IF EXISTS users CASCADE;
+
+-- Create simplified users table
+CREATE TABLE users (
+    id SERIAL PRIMARY KEY,
+    bank_user_id VARCHAR(50) UNIQUE NOT NULL,  -- e.g., "team275-6"
+    password_hash TEXT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_users_bank_user_id ON users(bank_user_id);