Fix metric-views dashboard table resolution and warehouse filter source

[dawidstruzik]

Summary

Fix two runtime issues in knowledge-base/metric-views dashboard datasets.

Fixes

1. Use unqualified table names in dashboard SQL so catalog and schema come from dashboard resource settings.
2. Change the warehouse filter source from dim_warehouse to dim_compute.

File changed

• knowledge-base/metric-views/src/dbsql_metrics.lvdash.json

Result

• Prevent wrong schema resolution from stale hardcoded defaults.
• Fix TABLE_OR_VIEW_NOT_FOUND for dim_warehouse.
• Keep dashboard JSON valid.