Cleaned debug statement, adjusted query to database

[wcf000]

This pull request introduces improvements to Supabase database access and administration. The main changes add an is_admin parameter to database service methods, allowing flexible operations to use the service role key when needed. Additionally, a helper method for table access is added to the client, and environment variable handling for Supabase keys is clarified.

Database service enhancements:

• Added an is_admin parameter to the fetch_data, insert_data, update_data, upsert_data, and delete_data methods in SupabaseDatabaseService (by default set to be false) to enable use of the service role key if needed from the server code for admin-level operations. [1] [2] [3] [4] [5]

• Updated the logic in init.py to ensure admin operations use the correct credentials.

Client compatibility:

• Added a table method to the SupabaseClient class in client.py to delegate table access to the raw client, improving compatibility with existing code that expects this method.

Code organization:

• Minor cleanup: removed duplicate import of SupabaseService in database.py.