fix: table_catalog in re-attach query, --limit in hybrid CLI

- _reattach_remote_extensions: query table_catalog instead of table_schema
  (DuckDB ATTACHed databases use table_catalog for the alias)
- _query_hybrid: forward --limit flag to RemoteQueryEngine.max_result_rows

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cli/commands/query.py

@@ -112,9 +112,12 @@ def _query_hybrid(sql: str, fmt: str, limit: int, register_bq_specs: List[str]):
     conn = duckdb.connect(str(db_path), read_only=True)
     try:
         config = load_config()
-        engine = RemoteQueryEngine(conn, **{k: v for k, v in config.items() if k in (
+        engine_kwargs = {k: v for k, v in config.items() if k in (
             "max_bq_registration_rows", "max_memory_mb", "max_result_rows", "timeout_seconds"
-        )})
+        )}
+        # CLI --limit flag overrides config max_result_rows
+        engine_kwargs["max_result_rows"] = limit
+        engine = RemoteQueryEngine(conn, **engine_kwargs)
 
         for spec in register_bq_specs:
             if "=" not in spec:

src/db.py

@@ -285,7 +285,7 @@ def _reattach_remote_extensions(
         try:
             has_table = conn.execute(
                 "SELECT 1 FROM information_schema.tables "
-                f"WHERE table_schema='{ext_dir.name}' AND table_name='_remote_attach'"
+                f"WHERE table_catalog='{ext_dir.name}' AND table_name='_remote_attach'"
             ).fetchone()
             if not has_table:
                 continue