chore: auto-commit (95 archivos)

- cmd/fn/doctor.go
- cmd/fn/main.go
- cpp/apps/primitives_gallery/playground/tables/CMakeLists.txt
- cpp/apps/primitives_gallery/playground/tables/data_table.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.h
- cpp/apps/primitives_gallery/playground/tables/self_test.cpp
- cpp/apps/primitives_gallery/playground/tables/tql.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.h
- ...

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

functions/infra/vault_aggregate_index.md

@@ -0,0 +1,58 @@
+---
+name: vault_aggregate_index
+kind: function
+lang: go
+domain: infra
+version: "1.0.0"
+purity: impure
+signature: "func VaultAggregateIndex(repoRoot string) (AggregateReport, error)"
+description: "Agrega los índices de todos los vaults del registry en la tabla vault_files de registry.db. Lee cada vault_index.db (via VaultIndexOpen) y reemplaza las filas de forma atómica. Idempotente: re-ejecutar limpia y reescribe sin duplicar."
+tags: [vault, index, aggregate, registry]
+uses_functions:
+  - "vault_manifest_read_go_infra"
+  - "vault_index_open_go_infra"
+  - "sqlite_open_go_infra"
+uses_types:
+  - "vault_file_go_infra"
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports:
+  - "database/sql"
+  - "fmt"
+  - "os"
+  - "path/filepath"
+  - "time"
+tested: true
+tests:
+  - "TestVaultAggregateIndex_NoVaults"
+  - "TestVaultAggregateIndex_VaultWithoutIndex"
+  - "TestVaultAggregateIndex_HappyPath"
+  - "TestVaultAggregateIndex_ReRunReplaces"
+test_file_path: "functions/infra/vault_aggregate_index_test.go"
+file_path: "functions/infra/vault_aggregate_index.go"
+params:
+  - name: repoRoot
+    desc: "Ruta absoluta a la raiz del fn_registry (contiene registry.db y projects/)."
+output: "AggregateReport con VaultsProcessed, VaultsSkipped (sin vault_index.db), TotalFiles y Errors (errores no fatales por vault). Error fatal solo si registry.db no se puede abrir."
+---
+
+## Ejemplo
+
+```go
+report, err := infra.VaultAggregateIndex("/home/lucas/fn_registry")
+if err != nil {
+    log.Fatal(err)
+}
+fmt.Printf("Processed: %d vaults, %d files\n", report.VaultsProcessed, report.TotalFiles)
+for _, e := range report.Errors {
+    fmt.Println("warning:", e)
+}
+```
+
+## Notas
+
+- Requiere que `registry/migrations/012_vault_files.sql` haya sido aplicado (o que el indexer lo aplique al arrancar). La función aplica la migración de forma idempotente ella misma con `CREATE TABLE IF NOT EXISTS`.
+- Por cada vault: `DELETE WHERE vault_id = ?` + batch `INSERT` dentro de una transacción. Re-run siempre produce el mismo resultado.
+- Vaults sin `vault_index.db` se cuentan en `VaultsSkipped` y se omiten sin error.
+- El `vault_id` sigue el patrón `<vault_name>_<project_id>`, consistente con la tabla `vaults` de registry.db.