fix(pipeline): eurostat filter bugs + supervisor uses sqlmesh plan

- nrg_pc_203: add missing unit=KWH filter (API returns 2 units)
- lc_lci_lev: fix currency→unit filter dimension name
- supervisor: use `sqlmesh plan prod --auto-apply` instead of
  `sqlmesh run` so new/changed models are detected automatically

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

infra/supervisor/supervisor.sh

@@ -33,10 +33,10 @@ do
         DUCKDB_PATH="${DUCKDB_PATH:-/data/padelnomics/lakehouse.duckdb}" \
             uv run --package padelnomics_extract extract
 
-        # Transform
+        # Transform — plan detects new/changed models; run only executes existing plans.
         LANDING_DIR="${LANDING_DIR:-/data/padelnomics/landing}" \
         DUCKDB_PATH="${DUCKDB_PATH:-/data/padelnomics/lakehouse.duckdb}" \
-            uv run --package sqlmesh_padelnomics sqlmesh run --select-model "serving.*"
+            uv run sqlmesh -p transform/sqlmesh_padelnomics plan prod --auto-apply
 
         # Export serving tables to analytics.duckdb (atomic swap).
         # The web app detects the inode change on next query — no restart needed.