fix(payments): improve payment activation error handling

Add validation for provider payment IDs in YooKassa webhook processing and ensure activation details are checked for null values in CryptoPay, FreeKassa, Platega, and Stars services. This prevents potential runtime errors during payment processing and enhances logging for better debugging.

db/alembic_runner.py

@@ -140,6 +140,25 @@ def _run_legacy_migrator_compatibility(connection: Connection) -> None:
             connection.execute(
                 text("ALTER TABLE promo_codes ADD COLUMN discount_percentage INTEGER")
             )
+        if "current_activations" not in promo_columns:
+            connection.execute(
+                text(
+                    "ALTER TABLE promo_codes ADD COLUMN current_activations INTEGER NOT NULL DEFAULT 0"
+                )
+            )
+        else:
+            connection.execute(
+                text(
+                    "UPDATE promo_codes SET current_activations = 0 "
+                    "WHERE current_activations IS NULL"
+                )
+            )
+            connection.execute(
+                text("ALTER TABLE promo_codes ALTER COLUMN current_activations SET DEFAULT 0")
+            )
+            connection.execute(
+                text("ALTER TABLE promo_codes ALTER COLUMN current_activations SET NOT NULL")
+            )
         if "bonus_days" in promo_columns:
             connection.execute(
                 text("ALTER TABLE promo_codes ALTER COLUMN bonus_days DROP NOT NULL")