Add python script for applying migrations

migrations/003_create_login_history.sql

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+-- Create login_history table to track user logins
+CREATE TABLE IF NOT EXISTS login_history (
+    id SERIAL PRIMARY KEY,
+    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    login_time TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    ip_address VARCHAR(45),  -- IPv6 max length is 45 characters
+    user_agent TEXT,
+    success BOOLEAN NOT NULL DEFAULT TRUE,
+    failure_reason VARCHAR(255)
+);
+
+-- Create index on user_id for faster queries
+CREATE INDEX IF NOT EXISTS idx_login_history_user_id ON login_history(user_id);
+
+-- Create index on login_time for sorting
+CREATE INDEX IF NOT EXISTS idx_login_history_login_time ON login_history(login_time DESC);

run_migration.py

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+"""
+Database migration runner
+Execute SQL migration files using the Flask app's database connection
+"""
+import os
+import sys
+
+# Add parent directory to path to import app
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+from extensions import db as database
+
+def run_migration(migration_file):
+    """Execute a SQL migration file"""
+    try:
+        # Read migration file
+        migration_path = os.path.join('migrations', migration_file)
+        if not os.path.exists(migration_path):
+            print(f"ERROR: Migration file not found: {migration_path}")
+            sys.exit(1)
+        
+        with open(migration_path, 'r') as f:
+            sql = f.read()
+        
+        # Execute migration using the database connection
+        conn = database.pool.getconn()
+        cursor = conn.cursor()
+        
+        try:
+            cursor.execute(sql)
+            conn.commit()
+            print(f"✓ Successfully executed migration: {migration_file}")
+        except Exception as e:
+            conn.rollback()
+            print(f"ERROR executing migration: {e}")
+            sys.exit(1)
+        finally:
+            cursor.close()
+            database.pool.putconn(conn)
+        
+    except Exception as e:
+        print(f"ERROR: {e}")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python run_migration.py <migration_file>")
+        print("Example: python run_migration.py 003_create_login_history.sql")
+        sys.exit(1)
+    
+    # Initialize the app to set up database connection
+    from app import app
+    with app.app_context():
+        migration_file = sys.argv[1]
+        run_migration(migration_file)