[Bug] dynamic iceberg tables don't build without base_location_subpath option

[VersusFacit]

Is this a new bug in dbt-snowflake?

• I believe this is a new bug in dbt-snowflake
• I have searched the existing issues, and I could not find an existing issue for this bug

Current Behavior

base_location_subpath should be an optional parameter that the user provides as an additional scoping mechanism. Instead, it is currently responsible for base generation creation.

Expected Behavior

Dynamic iceberg tables should render ddl using the _dbt/schema/relation name base location when no base_location_subpath is provided.

Steps To Reproduce

1. in an iceberg-enabled snowflake, write a dynamic iceberg table code artifact with no base_location_subpath param
2. dbt run

Relevant log output

No response

Environment

- OS:
- Python:
- dbt-core:
- dbt-snowflake:

Additional Context

No response