fix: load development settings by default

go/cmd/bd2server/development_settings.go

@@ -0,0 +1,10 @@
+package main
+
+import "path/filepath"
+
+func resolveDevelopmentSettingsPath(dataDir, override string) string {
+	if override != "" {
+		return filepath.Clean(override)
+	}
+	return filepath.Join(dataDir, "dev-tools.json")
+}

go/cmd/bd2server/development_settings_test.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestDevelopmentSettingsDefaultFollowsServerDataDirectory(t *testing.T) {
+	dataDir := filepath.Join(t.TempDir(), "custom-data")
+	if got := resolveDevelopmentSettingsPath(dataDir, ""); got != filepath.Join(dataDir, "dev-tools.json") {
+		t.Fatalf("development settings path = %q", got)
+	}
+	override := filepath.Join(t.TempDir(), "operator-settings.json")
+	if got := resolveDevelopmentSettingsPath(dataDir, override); got != override {
+		t.Fatalf("explicit development settings path = %q, want %q", got, override)
+	}
+}

go/cmd/bd2server/main.go

@@ -95,7 +95,7 @@ func serve(args []string) (serveErr error) {
 	deckSeed := fs.String("deck-seed", "", "versioned starter deck")
 	worldSeed := fs.String("world-seed", "", "versioned starter world")
 	gachaScheduleSeed := fs.String("gacha-schedule-seed", "", "versioned dynamic gacha schedule")
-	devToolsConfig := fs.String("dev-tools-config", "", "optional local development-tool settings JSON")
+	devToolsConfig := fs.String("dev-tools-config", "", "development-tool settings JSON (defaults to DATA_DIR/dev-tools.json)")
 	if err := fs.Parse(args); err != nil {
 		return err
 	}
@@ -166,6 +166,7 @@ func serve(args []string) (serveErr error) {
 	if err != nil {
 		return fmt.Errorf("resolve server data directory: %w", err)
 	}
+	*devToolsConfig = resolveDevelopmentSettingsPath(*dataDir, *devToolsConfig)
 	gameData := filepath.Join(*dataDir, "resources", "GameData")
 	if *stateFile == "" {
 		*stateFile = filepath.Join(*dataDir, "state", "state.db")
@@ -360,9 +361,7 @@ func serve(args []string) (serveErr error) {
 	if err != nil {
 		return fmt.Errorf("load inventory slot state: %w", err)
 	}
-	if *devToolsConfig != "" {
-		inventorySlots.AttachDevelopmentSettings(filepath.Clean(*devToolsConfig))
-	}
+	inventorySlots.AttachDevelopmentSettings(*devToolsConfig)
 	if err := login.AttachInventorySlots(inventorySlots); err != nil {
 		return fmt.Errorf("attach inventory slots to login: %w", err)
 	}