Fix HTML rendering for service descriptions, allow zero price for services, improve image_url handling

backend/drop_constraints.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+"""Drop price check constraints from database"""
+import asyncio
+from database import async_engine
+from sqlalchemy import text
+
+async def drop_constraints():
+    async with async_engine.begin() as conn:
+        # Drop services price constraint
+        result1 = await conn.execute(text('ALTER TABLE services DROP CONSTRAINT IF EXISTS chk_services_price_positive'))
+        print('Dropped chk_services_price_positive')
+        
+        # Drop products price constraint
+        result2 = await conn.execute(text('ALTER TABLE products DROP CONSTRAINT IF EXISTS chk_products_price_positive'))
+        print('Dropped chk_products_price_positive')
+        
+        print('Done!')
+
+if __name__ == "__main__":
+    asyncio.run(drop_constraints())