added a clear_db to start fresh with only an admin

clear_db.py

@@ -0,0 +1,56 @@
+"""Database seeding script for Team Tryouts application.
+
+Wipes all data and creates an admin user. Run manually with:
+    python -m app.supporting_scripts.seed
+"""
+
+from app.extensions import db, hash_password
+from app.models import Admin
+
+
+def seed_database():
+    """Delete all existing data and create a single admin account."""
+
+    # Delete all data in FK-safe order
+    print("Deleting existing data...")
+    tables = [
+        'one_on_one_requests',
+        'player_disponibilities', 'coach_availabilities',
+        'match_participants', 'team_match_participants',
+        'matches', 'team_matches',
+        'team_players', 'team_members', 'teams',
+        'evaluations', 'tryout_registrations', 'tryouts',
+        'org_team_coaches', 'org_team_managers',
+        'team_notes', 'personal_notes',
+        'user_gamertags',
+        'org_teams',
+        'users',
+    ]
+    for table in tables:
+        db.session.execute(db.text(f'DELETE FROM {table}'))
+    db.session.commit()
+    print("[OK] All data deleted.")
+
+    # Create the admin user
+    admin = Admin(
+        username='admin',
+        password_hash=hash_password('password'),
+        role='admin',
+        full_name='Admin',
+        email='[email protected]',
+    )
+    db.session.add(admin)
+    db.session.commit()
+
+    print("[OK] Created admin user")
+    print("\n=== Admin Credentials ===")
+    print("Username: admin")
+    print("Password: password")
+    print("\n[SUCCESS] Database reset and seeded!")
+
+
+if __name__ == '__main__':
+    from app.app import create_app
+    app = create_app()
+    with app.app_context():
+        seed_database()