fix(query): persist unsaved query tabs

src/lib/openTabsPersistence.ts

@@ -0,0 +1,75 @@
+import type { QueryTab } from "@/types/database";
+
+export interface SavedOpenTab {
+  id: string;
+  title: string;
+  connectionId: string;
+  database: string;
+  schema?: string;
+  sql: string;
+  pinned?: boolean;
+  mode?: QueryTab["mode"];
+  tableMeta?: QueryTab["tableMeta"];
+}
+
+export interface RestoredOpenTabs {
+  tabs: QueryTab[];
+  activeTabId: string | null;
+}
+
+export function serializeOpenTabs(tabs: QueryTab[]): SavedOpenTab[] {
+  return tabs.map((tab) => ({
+    id: tab.id,
+    title: tab.title,
+    connectionId: tab.connectionId,
+    database: tab.database,
+    schema: tab.schema,
+    sql: tab.sql,
+    pinned: tab.pinned,
+    mode: tab.mode,
+    tableMeta: tab.tableMeta,
+  }));
+}
+
+function isSavedOpenTab(value: unknown): value is SavedOpenTab {
+  if (!value || typeof value !== "object") return false;
+  const tab = value as Record<string, unknown>;
+  return (
+    typeof tab.id === "string" &&
+    typeof tab.title === "string" &&
+    typeof tab.connectionId === "string" &&
+    typeof tab.database === "string" &&
+    typeof tab.sql === "string"
+  );
+}
+
+export function restoreOpenTabsState(
+  rawTabs: string | null,
+  rawActiveTabId: string | null,
+  options: { queryOnly?: boolean } = {},
+): RestoredOpenTabs {
+  if (!rawTabs) return { tabs: [], activeTabId: null };
+
+  try {
+    const parsed = JSON.parse(rawTabs);
+    if (!Array.isArray(parsed)) return { tabs: [], activeTabId: null };
+
+    const saved = parsed.filter(isSavedOpenTab);
+    const filtered = options.queryOnly ? saved.filter((tab) => (tab.mode ?? "query") === "query") : saved;
+    const tabs: QueryTab[] = filtered.map((tab) => ({
+      ...tab,
+      mode: tab.mode ?? "query",
+      isExecuting: false,
+      isCancelling: false,
+      isExplaining: false,
+    }));
+    const activeTabId = rawActiveTabId || null;
+
+    return {
+      tabs,
+      activeTabId: tabs.some((tab) => tab.id === activeTabId) ? activeTabId : tabs[0]?.id || null,
+    };
+  } catch {
+    return { tabs: [], activeTabId: null };
+  }
+}