[Bug]: IntelliSense after SELECT * FROM only suggests dbo tables

Description

When typing a query such as SELECT * FROM , IntelliSense only suggests tables from the dbo schema and does not include tables from other schemas.

This makes schema-aware object discovery incomplete in the most common table completion path. If the connected database contains tables under schemas other than dbo, those tables should also appear in the completion list.

Steps to Reproduce

1. Connect to a database that has user tables in multiple schemas, for example:
   • dbo.Customers
   • sales.Orders
   • inventory.Products
2. Open a SQL query editor.
3. Type SELECT * FROM and trigger IntelliSense.
4. Review the suggested table names.

Example:

I don't see SignArchive table which is in test schema

Expected Behavior

IntelliSense should suggest tables from all relevant schemas in the database, not just dbo.

Actual Behavior

IntelliSense only shows dbo tables and does not surface tables from non-dbo schemas.

Affected Area

• Query editor
• Language service / IntelliSense behavior

Environment Information

• VS Code Version: [fill in]
• MSSQL Extension Version: [fill in]
• Operating System: Windows
• Connection Type: SQL Server