Улучшение системы оспариваний и исправления

- Оспаривания теперь требуют решения админа после 24ч голосования
  - Можно повторно оспаривать после разрешённых споров
  - Исправлены бонусные очки при перепрохождении после оспаривания
  - Сброс серии при невалидном пруфе
  - Колесо показывает только доступные игры
  - Rate limiting только через backend (RATE_LIMIT_ENABLED)

backend/alembic/versions/021_add_bonus_disputes.py

@@ -0,0 +1,100 @@
+"""Add bonus assignment disputes support
+
+Revision ID: 021_add_bonus_disputes
+Revises: 020_add_game_types
+Create Date: 2024-12-29
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy import inspect
+
+
+# revision identifiers, used by Alembic.
+revision: str = '021_add_bonus_disputes'
+down_revision: Union[str, None] = '020_add_game_types'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def column_exists(table_name: str, column_name: str) -> bool:
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    columns = [col['name'] for col in inspector.get_columns(table_name)]
+    return column_name in columns
+
+
+def constraint_exists(table_name: str, constraint_name: str) -> bool:
+    bind = op.get_bind()
+    inspector = inspect(bind)
+    constraints = inspector.get_unique_constraints(table_name)
+    return any(c['name'] == constraint_name for c in constraints)
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+
+    # Add bonus_assignment_id column to disputes
+    if not column_exists('disputes', 'bonus_assignment_id'):
+        op.add_column('disputes', sa.Column(
+            'bonus_assignment_id',
+            sa.Integer(),
+            nullable=True
+        ))
+        op.create_foreign_key(
+            'fk_disputes_bonus_assignment_id',
+            'disputes',
+            'bonus_assignments',
+            ['bonus_assignment_id'],
+            ['id'],
+            ondelete='CASCADE'
+        )
+        op.create_index('ix_disputes_bonus_assignment_id', 'disputes', ['bonus_assignment_id'])
+
+    # Drop the unique index on assignment_id first (required before making nullable)
+    if bind.dialect.name != 'sqlite':
+        try:
+            op.drop_index('ix_disputes_assignment_id', 'disputes')
+        except Exception:
+            pass  # Index might not exist
+
+    # Make assignment_id nullable (PostgreSQL only, SQLite doesn't support ALTER COLUMN)
+    if bind.dialect.name != 'sqlite':
+        op.alter_column('disputes', 'assignment_id', nullable=True)
+
+    # Create a non-unique index on assignment_id
+    try:
+        op.create_index('ix_disputes_assignment_id_non_unique', 'disputes', ['assignment_id'])
+    except Exception:
+        pass  # Index might already exist
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+
+    # Remove non-unique index
+    try:
+        op.drop_index('ix_disputes_assignment_id_non_unique', table_name='disputes')
+    except Exception:
+        pass
+
+    # Make assignment_id not nullable again
+    if bind.dialect.name != 'sqlite':
+        op.alter_column('disputes', 'assignment_id', nullable=False)
+
+    # Recreate unique index
+    try:
+        op.create_index('ix_disputes_assignment_id', 'disputes', ['assignment_id'], unique=True)
+    except Exception:
+        pass
+
+    # Remove foreign key, index and column
+    if column_exists('disputes', 'bonus_assignment_id'):
+        try:
+            op.drop_constraint('fk_disputes_bonus_assignment_id', 'disputes', type_='foreignkey')
+        except Exception:
+            pass
+        op.drop_index('ix_disputes_bonus_assignment_id', table_name='disputes')
+        op.drop_column('disputes', 'bonus_assignment_id')