Prepare optional spell catalog inputs

internal/app/operator_inspection.go

@@ -53,23 +53,28 @@ type effectiveLocksCheck struct {
 
 func inspectStableInputs(cfg *config.Config) []stableInputCheck {
 	items := []struct {
-		name string
-		in   config.ResolvedInputFile
+		name     string
+		in       config.ResolvedInputFile
+		optional bool
 	}{
 		{name: "speakers", in: cfg.StableInputs.SpeakersFile},
 		{name: "autocorrect", in: cfg.StableInputs.AutocorrectFile},
 		{name: "glossary", in: cfg.StableInputs.GlossaryFile},
 		{name: "players", in: cfg.StableInputs.PlayersFile},
 		{name: "party", in: cfg.StableInputs.PartyFile},
+		{name: "spell_catalog", in: cfg.StableInputs.SpellCatalogFile, optional: true},
 	}
 	out := make([]stableInputCheck, 0, len(items))
 	for _, item := range items {
+		if item.optional && strings.TrimSpace(item.in.Path) == "" {
+			continue
+		}
 		path, err := resolveHelperConfigRelativePath(item.in)
 		if err != nil {
 			out = append(out, stableInputCheck{Name: item.name, Err: err})
 			continue
 		}
-		if _, err := os.Stat(path); err != nil {
+		if err := requireInspectionFile(path, item.name); err != nil {
 			out = append(out, stableInputCheck{Name: item.name, Path: path, Err: err})
 			continue
 		}