chore: auto-commit (286 archivos)

- .claude/agents/fn-orquestador/SKILL.md
- .claude/commands/fn_claude.md
- .claude/rules/INDEX.md
- .claude/rules/cpp_apps.md
- .claude/rules/ids_naming.md
- CHANGELOG.md
- apps/dag_engine/README.md
- apps/dag_engine/api.go
- apps/dag_engine/dags_migrated/example.yaml
- apps/dag_engine/dags_migrated/example_lineage_tracking.yaml
- ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

functions/datascience/fetch_data_frame.md

@@ -7,7 +7,7 @@ version: "1.0.0"
 purity: impure
 signature: "func FetchDataFrame(dsn, query string) ([]map[string]any, error)"
 description: "Ejecuta una consulta SQL contra un DSN y retorna los resultados como slice de mapas columna-valor."
-tags: [datascience, io, bigquery, fetch, pendiente-usar]
+tags: [datascience, io, bigquery, fetch, pendiente-usar, extractor]
 uses_functions: []
 uses_types: []
 returns: []