Add migration file for allowing null match_number

app/database/migrations/allow_null_match_number.py

+"""Migration to allow match_number to be null in bets, bet_details, extraction_stats, and match_reports tables."""
+
+from app.database import manager
+from app import db
+
+def upgrade():
+    """Upgrade the database to allow match_number to be null."""
+    with manager.get_alembic_context().begin_transaction():
+        # Alter bets table
+        db.engine.execute('ALTER TABLE bets MODIFY match_number INT NULL')
+        # Alter bet_details table
+        db.engine.execute('ALTER TABLE bet_details MODIFY match_number INT NULL')
+        # Alter extraction_stats table
+        db.engine.execute('ALTER TABLE extraction_stats MODIFY match_number INT NULL')
+        # Alter match_reports table
+        db.engine.execute('ALTER TABLE match_reports MODIFY match_number INT NULL')
+
+def downgrade():
+    """Downgrade the database to make match_number not null."""
+    with manager.get_alembic_context().begin_transaction():
+        # Alter bets table
+        db.engine.execute('ALTER TABLE bets MODIFY match_number INT NOT NULL')
+        # Alter bet_details table
+        db.engine.execute('ALTER TABLE bet_details MODIFY match_number INT NOT NULL')
+        # Alter extraction_stats table
+        db.engine.execute('ALTER TABLE extraction_stats MODIFY match_number INT NOT NULL')
+        # Alter match_reports table
+        db.engine.execute('ALTER TABLE match_reports MODIFY match_number INT NOT NULL')
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