fix(import): hide the data-tab import entry for unsupported engines

apps/desktop/src/components/layout/ContentArea.vue

@@ -157,6 +157,7 @@ import { dataTabExecutionDatabase } from "@/lib/table/dataTabExecutionDatabase";
 import { formatShortcut } from "@/lib/editor/shortcutRegistry";
 import type { CodeMirrorSqlDialectName } from "@/lib/editor/codemirrorSqlDialect";
 import { codeMirrorSqlDialect, codeMirrorSqlDialectForConnection, effectiveDatabaseTypeForConnection } from "@/lib/database/jdbcDialect";
+import { supportsTableImport } from "@/lib/database/databaseFeatureSupport";
 import { chartableColumnIndexes } from "@/lib/dataGrid/chartData";
 import { elasticsearchJsonResponseForResult } from "@/lib/elasticsearch/elasticsearchJsonResponse";
 import { elasticsearchProfileBodyForResult, parseElasticsearchProfile } from "@/lib/elasticsearch/elasticsearchProfile";
@@ -337,6 +338,8 @@ const activeResultConnectionId = computed(() => activeResultExecutionTarget.valu
 const activeResultDatabase = computed(() => activeResultExecutionTarget.value?.database ?? props.activeTab.database);
 const activeResultSchema = computed(() => activeResultExecutionTarget.value?.schema ?? props.activeTab.schema);
 const activeEffectiveDatabaseType = computed(() => effectiveDatabaseTypeForConnection(activeResultConnection.value));
+// 表数据工具箱的「导入数据」与侧边栏、对象浏览器共用同一条能力判断：未适配导入的引擎（如 HANA）不出现入口。
+const canOpenTableImport = computed(() => supportsTableImport(activeEffectiveDatabaseType.value));
 const activeVectorConnection = computed(() => connectionStore.getConfig(props.activeTab.connectionId) ?? props.activeConnection);
 const activeDataTabExecutionDatabase = computed(() => dataTabExecutionDatabase(props.activeConnection, props.activeTab.database, activeDataTabTableMeta.value?.catalog));
 const activeProductionContext = computed(() => productionContextForDatabase(props.activeConnection, props.activeTab.database));
@@ -2079,7 +2082,7 @@ defineExpose({
                   <Database class="h-4 w-4" />
                   {{ t("tableToolbox.generateData") }}
                 </DropdownMenuItem>
-                <DropdownMenuItem class="gap-2" @click="handleTableImport">
+                <DropdownMenuItem v-if="canOpenTableImport" class="gap-2" @click="handleTableImport">
                   <Download class="h-4 w-4" />
                   {{ t("tableToolbox.importData") }}
                 </DropdownMenuItem>

apps/desktop/src/components/layout/__tests__/ContentArea.tableImportEntry.spec.ts

@@ -0,0 +1,32 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+function read(relativePath: string) {
+  return readFileSync(new URL(relativePath, import.meta.url), "utf8");
+}
+
+// 能打开「导入表数据」向导的三个入口。侧边栏的守卫在菜单宿主（SidebarTreeRuntimeHost.vue）里，
+// 写入函数 composables/useSidebarTreeToolRuntime.ts 本身不带守卫，所以这里列的是入口界面而不是写入点。
+const TABLE_IMPORT_ENTRY_SURFACES = ["../ContentArea.vue", "../../objects/ObjectBrowser.vue", "../../sidebar/SidebarTreeRuntimeHost.vue"];
+
+describe("ContentArea table import entry", () => {
+  it("gates the data-tab toolbox import item on the shared capability check", () => {
+    const source = read("../ContentArea.vue");
+    // HANA 的能力清单是 tableImport:false。入口不跟能力走时，向导仍能打开并停在「选项」步：
+    // 目标表字段元数据取不回来，下一步恒为禁用（QA #hana-import 的复现路径）。
+    expect(source).toContain("const canOpenTableImport = computed(");
+    expect(source).toContain("supportsTableImport(activeEffectiveDatabaseType.value)");
+
+    const item = source.indexOf('t("tableToolbox.importData")');
+    expect(item).toBeGreaterThan(-1);
+    const openTag = source.lastIndexOf("<DropdownMenuItem", item);
+    expect(openTag).toBeGreaterThan(-1);
+    expect(source.slice(openTag, item)).toContain('v-if="canOpenTableImport"');
+  });
+
+  it("keeps every entry surface consulting the same capability", () => {
+    for (const surface of TABLE_IMPORT_ENTRY_SURFACES) {
+      expect(read(surface), surface).toContain("supportsTableImport");
+    }
+  });
+});