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_index_open.go

@@ -0,0 +1,30 @@
+package infra
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"path/filepath"
+)
+
+//go:embed vault_index_migrations/*.sql
+var vaultIndexMigrationsFS embed.FS
+
+// VaultIndexOpen opens (or creates) the vault_index.db inside vaultPath.
+// It applies all embedded migrations idempotently and returns a ready-to-use
+// *sql.DB. The caller is responsible for closing the connection.
+//
+// The database is opened with WAL mode and foreign keys enabled via SQLiteOpen.
+// Migrations are applied from vault_index_migrations/*.sql in lexicographic order.
+func VaultIndexOpen(vaultPath string) (*sql.DB, error) {
+	dbPath := filepath.Join(vaultPath, "vault_index.db")
+	db, err := SQLiteOpen(dbPath, "")
+	if err != nil {
+		return nil, fmt.Errorf("vault_index_open: %w", err)
+	}
+	if err := ApplyMigrations(db, vaultIndexMigrationsFS, "vault_index_migrations/*.sql"); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("vault_index_open: apply migrations: %w", err)
+	}
+	return db, nil
+}