remove emojis from console

docs/UNIFIED_STORAGE_INTEGRATION.md

@@ -6,11 +6,11 @@ The unified storage system has been integrated into the existing `DataProvider`
 
 ## Key Features
 
-✅ **Single Endpoint**: One method for all data access  
-✅ **Automatic Routing**: Cache for real-time, database for historical  
-✅ **Backward Compatible**: All existing methods still work  
-✅ **Opt-In**: Only enabled when explicitly initialized  
-✅ **Fast**: <10ms cache reads, <100ms database queries  
+ **Single Endpoint**: One method for all data access  
+ **Automatic Routing**: Cache for real-time, database for historical  
+ **Backward Compatible**: All existing methods still work  
+ **Opt-In**: Only enabled when explicitly initialized  
+ **Fast**: <10ms cache reads, <100ms database queries  
 
 ## Quick Start
 
@@ -27,9 +27,9 @@ data_provider = DataProvider()
 async def setup():
     success = await data_provider.enable_unified_storage()
     if success:
-        print("✅ Unified storage enabled!")
+        print(" Unified storage enabled!")
     else:
-        print("❌ Failed to enable unified storage")
+        print(" Failed to enable unified storage")
 
 asyncio.run(setup())
 ```