Add migration services

services/sales/app/main.py

@@ -4,6 +4,7 @@ Sales Service Main Application
 """
 
 from fastapi import FastAPI
+from sqlalchemy import text
 from app.core.config import settings
 from app.core.database import database_manager
 from shared.service_base import StandardFastAPIService
@@ -15,6 +16,27 @@ from app.api.import_data import router as import_router
 class SalesService(StandardFastAPIService):
     """Sales Service with standardized setup"""
 
+    expected_migration_version = "001_initial_sales"
+
+    async def on_startup(self, app):
+        """Custom startup logic including migration verification"""
+        await self.verify_migrations()
+        await super().on_startup(app)
+
+    async def verify_migrations(self):
+        """Verify database schema matches the latest migrations."""
+        try:
+            async with self.database_manager.get_session() as session:
+                result = await session.execute(text("SELECT version_num FROM alembic_version"))
+                version = result.scalar()
+                if version != self.expected_migration_version:
+                    self.logger.error(f"Migration version mismatch: expected {self.expected_migration_version}, got {version}")
+                    raise RuntimeError(f"Migration version mismatch: expected {self.expected_migration_version}, got {version}")
+                self.logger.info(f"Migration verification successful: {version}")
+        except Exception as e:
+            self.logger.error(f"Migration verification failed: {e}")
+            raise
+
     def __init__(self):
         # Define expected database tables for health checks
         sales_expected_tables = ['sales_data', 'sales_import_jobs']