fix(tabs): allow saving a saved sql tab after clearing content

Closes #9247

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

@@ -24,6 +24,7 @@ import { hexToRgba } from "@/lib/common/color";
 import { productionContextForDatabase } from "@/lib/database/productionSafety";
 import { formatShortcutDisplay } from "@/lib/editor/shortcutDisplay";
 import { resolveNextEditorToolbarTier, type EditorToolbarTier } from "@/lib/tabs/editorToolbarLayout";
+import { canSaveSqlTab } from "@/lib/tabs/sqlTabSaveTarget";
 import { looksLikeDmlStatement } from "@/lib/sql/dmlChangePreview";
 import { canFormatSqlForDatabaseType } from "@/lib/sql/sqlFormatter";
 import type { QueryTab, ConnectionConfig } from "@/types/database";
@@ -249,7 +250,7 @@ const explainAnalyzeTooltip = computed(() => {
   if (dbType === "sqlserver") return t("toolbar.actualPlan");
   return t("toolbar.autotrace");
 });
-const canSaveSql = computed(() => !!props.activeTab.externalSqlPath || !!props.activeTab.sql.trim());
+const canSaveSql = computed(() => canSaveSqlTab(props.activeTab));
 const keywordCaseIsLower = computed(() => props.sqlKeywordCase === "lower");
 const keywordCaseToggleTooltip = computed(() => (keywordCaseIsLower.value ? t("toolbar.keywordCaseUpper") : t("toolbar.keywordCaseLower")));
 const sqlSemanticDiagnosticsEnabled = computed(() => settingsStore.editorSettings.sqlSemanticDiagnosticsEnabled);