Complete backend verification: fix syntax errors, create __init__.py files, add setup_db.py, update docker-compose for two PostgreSQL containers

backend/app/monitor/mtg_monitor.py

@@ -1,7 +1,7 @@
 """
 MTG Database Monitor
 
-Monitors PostgreSQL database metrics for both cockatrice and mtgdata databases.
+Monitors PostgreSQL database metrics for both mtgonline and mtgdata databases.
 Tracks:
 - Database size and growth
 - Table sizes
@@ -28,14 +28,14 @@ MTG_DB = settings.MTG_DATABASE_URL
 class MtgMonitor:
     def __init__(self):
         self.mtg_conn = None
-        self.cockatrice_conn = None
+        self.mtgonline_conn = None
         self.metrics = {}
         
     async def connect(self):
         """Establish connections to both databases."""
         try:
             self.mtg_conn = await asyncpg.connect(MTG_DB)
-            self.cockatrice_conn = await asyncpg.connect(COCKATRICE_DB)
+            self.mtgonline_conn = await asyncpg.connect(COCKATRICE_DB)
             return True
         except Exception as e:
             print(f"Connection error: {e}")
@@ -45,8 +45,8 @@ class MtgMonitor:
         """Close database connections."""
         if self.mtg_conn:
             await self.mtg_conn.close()
-        if self.cockatrice_conn:
-            await self.cockatrice_conn.close()
+        if self.mtgonline_conn:
+            await self.mtgonline_conn.close()
             
     async def get_database_size(self) -> Dict[str, float]:
         """Get size of databases in GB."""
@@ -56,14 +56,14 @@ class MtgMonitor:
                 SELECT pg_database_size(current_database()) as size
             """)
             
-            # Cockatrice database size
-            cockatrice_size = await self.cockatrice_conn.fetchval("""
+            # MTG Online database size
+            mtgonline_size = await self.mtgonline_conn.fetchval("""
                 SELECT pg_database_size(current_database()) as size
             """)
             
             return {
                 "mtgdata": mtg_size / (1024**3),  # Convert to GB
-                "cockatrice": cockatrice_size / (1024**3)
+                "mtgonline": mtgonline_size / (1024**3)
             }
         except Exception as e:
             print(f"Error getting database sizes: {e}")