feat: pipelines Metabase — add ops db, create ops dashboard, fix permissions

Tres pipelines Python para gestionar operations.db en Metabase:
- metabase_add_ops_db: registra la operations.db de una app como database SQLite
- metabase_create_ops_dashboard: genera dashboard operativo con 14 cards (KPIs,
  distribución, executions, assertions) para cualquier app
- metabase_fix_permissions: arregla SQLITE_READONLY_DIRECTORY haciendo chmod
  777/666 sin chown (que se propaga al host via bind mount)

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

python/functions/pipelines/metabase_create_ops_dashboard.md

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+---
+name: metabase_create_ops_dashboard
+kind: pipeline
+lang: py
+domain: pipelines
+version: "1.0.0"
+purity: impure
+signature: "metabase_create_ops_dashboard(app_name: str) -> None"
+description: "Crea dashboard operativo en Metabase para una app: KPIs de entities/relations/executions/assertions, distribucion por status y tipo, relaciones frecuentes, resultados de ejecuciones y assertions."
+tags: [metabase, operations, dashboard, pipeline, infra, launcher]
+uses_functions:
+  - metabase_auth_py_infra
+  - metabase_list_databases_py_infra
+  - metabase_create_card_py_infra
+  - metabase_create_dashboard_py_infra
+  - metabase_update_dashboard_py_infra
+  - metabase_list_dashboards_py_infra
+  - metabase_delete_dashboard_py_infra
+uses_types: []
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports: []
+tested: false
+tests: []
+test_file_path: ""
+file_path: "python/functions/pipelines/metabase_create_ops_dashboard.py"
+---
+
+## Ejemplo
+
+```bash
+# Dashboard para una app
+python python/functions/pipelines/metabase_create_ops_dashboard.py docker_tui
+
+# Dashboards para todas las apps registradas
+python python/functions/pipelines/metabase_create_ops_dashboard.py --all
+```
+
+## Cards del dashboard
+
+| Fila | Cards | Tipo |
+|------|-------|------|
+| 0 | Entities, Relations, Executions, Assertions | scalar (KPIs) |
+| 5 | Entities por Status, Entities por Tipo, Relations por Status | pie/bar |
+| 13 | Executions Success/Failure, Assertions por Severity, Assertion Results | pie/bar |
+| 22 | Top Relaciones (via), Executions Recientes | row/table |
+| 30 | Lista de Entities | table |
+| 38 | Assertion Results Detalle | table |
+
+## Flujo
+
+1. `metabase_auth` - autentica contra Metabase
+2. `metabase_list_databases` - busca la database operacional de la app
+3. `metabase_create_card` x 14 - crea las cards con queries SQL nativas
+4. `metabase_create_dashboard` - crea el dashboard
+5. `metabase_update_dashboard` - posiciona las cards en el grid
+
+## Requisitos
+
+La database operacional debe estar registrada previamente con `metabase_add_ops_db`.
+
+Las tablas `executions`, `assertions` y `assertion_results` requieren la migracion 002. Si no existen, las cards correspondientes mostraran error (no rompen el dashboard).
+
+## Convencion
+
+- Dashboard name: `ops: <app-name>`
+- Si el dashboard ya existe, se elimina y recrea.