fix(gbase8s): show locale/charset picker in routed create-db dialog

apps/desktop/src/components/sidebar/SidebarTreeRuntimeHost.vue

@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { computed, nextTick, watch, onBeforeUnmount, inject, reactive, ref, shallowRef } from "vue";
-import { createRoutedSidebarDialogController } from "./sidebarDialogControllerRouting";
+import { createRoutedSidebarDialogController, routedCanSetCreateDatabaseCharset } from "./sidebarDialogControllerRouting";
 import { useSqlHighlighter } from "@/composables/useSqlHighlighter";
 import { useSidebarDataOpenRuntime } from "@/composables/useSidebarDataOpenRuntime";
 import { useSidebarConnectionMutationRuntime } from "@/composables/useSidebarConnectionMutationRuntime";
@@ -680,7 +680,7 @@ function routeTreeItemDialogController() {
     },
   });
   routedController.pasteTableDataCopySupported = pasteTableDataCopySupported.value;
-  routedController.canSetCreateDatabaseCharset = canSetCreateDatabaseCharset.value;
+  routedController.canSetCreateDatabaseCharset = routedCanSetCreateDatabaseCharset(canSetCreateDatabaseCharset.value, canSetCreateDatabaseLocale.value);
   routedController.canEditDatabaseCharsetCollation = canEditDatabaseCharsetCollation.value;
   routedController.canEditDatabaseComment = canEditDatabaseComment.value;
   emit("open-dialog-controller", routedController);
@@ -5280,7 +5280,7 @@ function databaseDialogCapabilities() {
   return {
     showCreateDatabaseDialog,
     createDatabaseName,
-    canSetCreateDatabaseCharset: canSetCreateDatabaseCharset.value || canSetCreateDatabaseLocale.value,
+    canSetCreateDatabaseCharset: routedCanSetCreateDatabaseCharset(canSetCreateDatabaseCharset.value, canSetCreateDatabaseLocale.value),
     createDatabaseCharset,
     createDatabaseCharsetOptions,
     createDatabaseCharsetLoading,

apps/desktop/src/components/sidebar/__tests__/sidebarDialogControllerRouting.spec.ts

@@ -1,6 +1,6 @@
 import { describe, expect, it } from "vitest";
 import { reactive, ref, toRefs } from "vue";
-import { createRoutedSidebarDialogController } from "@/components/sidebar/sidebarDialogControllerRouting";
+import { createRoutedSidebarDialogController, routedCanSetCreateDatabaseCharset } from "@/components/sidebar/sidebarDialogControllerRouting";
 
 describe("createRoutedSidebarDialogController", () => {
   it("keeps dialog open flags linked to the shared module refs", () => {
@@ -61,3 +61,20 @@ describe("createRoutedSidebarDialogController", () => {
     expect(showCreateDatabaseDialog.value).toBe(false);
   });
 });
+
+describe("routedCanSetCreateDatabaseCharset", () => {
+  it("exposes the picker for locale-only dialects like GBase 8s (charset flag alone is false)", () => {
+    // Regression: the routed controller used to assign the raw charset-only value, hiding the
+    // create-database locale picker for GBase 8s / Informix even though the DB_LOCALE directive
+    // was still emitted.
+    expect(routedCanSetCreateDatabaseCharset(false, true)).toBe(true);
+  });
+
+  it("exposes the picker for charset-capable dialects like MySQL", () => {
+    expect(routedCanSetCreateDatabaseCharset(true, false)).toBe(true);
+  });
+
+  it("hides the picker when neither charset nor locale applies", () => {
+    expect(routedCanSetCreateDatabaseCharset(false, false)).toBe(false);
+  });
+});

apps/desktop/src/components/sidebar/sidebarDialogControllerRouting.ts

@@ -27,3 +27,16 @@ export function createRoutedSidebarDialogController(
   routedController.node = options.node;
   return routedController;
 }
+
+/**
+ * Whether the create-database dialog should expose its charset/locale picker.
+ *
+ * For MySQL-family dialects this is a charset+collation control gated by
+ * `canSetCreateDatabaseCharset`; for Informix-family dialects (GBase 8s) the same control is a
+ * locale selector gated by `canSetCreateDatabaseLocale`. Both the routed controller and
+ * `databaseDialogCapabilities()` must derive the flag from this single source, otherwise the two
+ * paths drift and the picker silently disappears for locale-only dialects.
+ */
+export function routedCanSetCreateDatabaseCharset(canSetCreateDatabaseCharset: boolean, canSetCreateDatabaseLocale: boolean): boolean {
+  return canSetCreateDatabaseCharset || canSetCreateDatabaseLocale;
+}