fix: corregir isSpecialConfig cuando loadedSpecials está vacío

Eliminar el early-return `if len(loadedSpecials) == 0 { return false }`
que causaba que el config del orchestrator (disabled/fallido) se intentara
cargar como agente normal, fallando con "agent.id is required".

Ahora la función parsea el YAML con LoadSpecial y devuelve true si
cfg.Special.ID != "" — independientemente de si el agente arrancó.
Esto silencia el error recurrente en cada inicio del launcher.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

cmd/launcher/main.go

@@ -35,6 +35,8 @@ import (
 	_ "github.com/enmanuel/agents/agents/meteorologo"
 	_ "github.com/enmanuel/agents/agents/test-personality"
 	_ "github.com/enmanuel/agents/agents/_specials/father-bot"
+	_ "github.com/enmanuel/agents/agents/wikipedia-bot"
+	_ "github.com/enmanuel/agents/agents/exchange-bot"
 	testbot "github.com/enmanuel/agents/agents/test-bot"
 )
 
@@ -356,17 +358,16 @@ func newLogger(level string) *slog.Logger {
 	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: parseLogLevel(level)}))
 }
 
-// isSpecialConfig checks whether a config path belongs to a special agent
+// isSpecialConfig checks whether a config path belongs to a middleware special
-// that was already loaded (e.g. orchestrator). It reads the YAML to detect
+// (e.g. orchestrator) by detecting a "special:" top-level key with a non-empty
-// a "special:" top-level key. This avoids config.Load() failing with
+// id. This avoids config.Load() failing with "agent.id is required" when the
-// validation errors for SpecialConfig files.
+// orchestrator is disabled or failed to start (loadedSpecials would be empty).
-func isSpecialConfig(path string, loadedSpecials map[string]bool) bool {
+// Agent-type specials like father-bot use a regular agent config (agent.id set)
-	if len(loadedSpecials) == 0 {
+// and are handled by the normal loading path.
-		return false
+func isSpecialConfig(path string, _ map[string]bool) bool {
-	}
 	cfg, err := config.LoadSpecial(path)
 	if err != nil {
 		return false // not a valid special config → let Load() handle it
 	}
-	return loadedSpecials[cfg.Special.ID]
+	return cfg.Special.ID != "" // has special.id → middleware special, skip
 }