Fix SQL parameter count in category filter query

The query uses base_where twice (for latest_any and latest_stable CTEs)
but params were only passed once, causing sqlite3.ProgrammingError when
filtering by category.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/smarttools/registry/app.py

@@ -456,7 +456,7 @@ def create_app() -> Flask:
             ORDER BY {order_sql}
             LIMIT ? OFFSET ?
             """,
-            params + [per_page, offset],
+            params + params + [per_page, offset],  # params twice for both CTEs
         )
 
         data = []