fix: resolve err shadow lint failures and bump eyrie submodule (#55)

Rename inner err bindings in daemon and multiagent workers to satisfy govet
shadow checks, and pin external/eyrie to a7e62a3 (probehttp refactor).

Author: Patel230

external/eyrie

@@ -410,8 +410,8 @@ func (s *Server) handleChat(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if req.MaxTurns > 0 {
-		if err := sess.SetMaxTurns(req.MaxTurns); err != nil {
-			slog.Error("invalid max turns", "err", err, "max_turns", req.MaxTurns)
+		if setErr := sess.SetMaxTurns(req.MaxTurns); setErr != nil {
+			slog.Error("invalid max turns", "err", setErr, "max_turns", req.MaxTurns)
 			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid max_turns"})
 			return
 		}

internal/daemon/daemon.go

@@ -46,8 +46,8 @@ func EngineWorker(provider, model, systemPrompt string) WorkerFunc {
 			level = engine.AutonomyFull
 		}
 		sess.PermSvc().SetAutonomy(level)
-		if err := sess.SetMaxTurns(30); err != nil {
-			return nil, fmt.Errorf("set max turns: %w", err)
+		if setErr := sess.SetMaxTurns(30); setErr != nil {
+			return nil, fmt.Errorf("set max turns: %w", setErr)
 		}
 
 		// Auto-approve everything in mission workers
@@ -154,8 +154,8 @@ func ReadOnlyValidationWorker(provider, model, systemPrompt string) WorkerFunc {
 			level = engine.AutonomyFull
 		}
 		sess.PermSvc().SetAutonomy(level)
-		if err := sess.SetMaxTurns(30); err != nil {
-			return nil, fmt.Errorf("set max turns: %w", err)
+		if setErr := sess.SetMaxTurns(30); setErr != nil {
+			return nil, fmt.Errorf("set max turns: %w", setErr)
 		}
 		sess.PermissionFn = func(req engine.PermissionRequest) {
 			if req.Response != nil {