feat: 执行查询前提示选择数据库

* Improve：执行查询前提示选择数据库

* Fix：补齐连接配置测试字段

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Co-authored-by: staff <staff@qimaos-MacBook-Pro.local>

apps/desktop/src/composables/useSqlExecution.ts

@@ -5,6 +5,7 @@ import { useHistoryStore } from "@/stores/historyStore";
 import { useConnectionStore } from "@/stores/connectionStore";
 import { useSettingsStore } from "@/stores/settingsStore";
 import { useToast } from "@/composables/useToast";
+import { isSingleDatabase } from "@/lib/databaseCapabilities";
 import { classifySqlActivityKind } from "@/lib/historyActivityKind";
 import { sqlMetadataRefreshTarget } from "@/lib/sqlMetadataRefresh";
 import { classifyRedisCommandSafety, firstRedisCommandToken } from "@/lib/redisCommandSafety";
@@ -41,6 +42,7 @@ export function useSqlExecution(deps: {
   resolveExecutableSql?: (snapshot?: SqlExecutionSnapshot) => Promise<string>;
   activeOutputView: Ref<"result" | "summary" | "explain" | "chart">;
   blockDangerousRedisCommands?: Ref<boolean>;
+  onMissingDatabase?: () => void;
 }) {
   const { t } = useI18n();
   const queryStore = useQueryStore();
@@ -66,6 +68,10 @@ export function useSqlExecution(deps: {
     const tab = deps.activeTab.value;
     const sql = await resolvedExecutableSql(sqlOverride);
     if (!tab || !sql.trim()) return;
+    if (requiresDatabaseSelection(tab, deps.activeConnection.value)) {
+      deps.onMissingDatabase?.();
+      return;
+    }
     // Redis: block dangerous commands when toggle is on (check each line for multi-line input)
     if (deps.activeConnection.value?.db_type === "redis" && deps.blockDangerousRedisCommands?.value !== false) {
       const commands = sql
@@ -94,6 +100,10 @@ export function useSqlExecution(deps: {
     sql ??= await resolvedExecutableSql();
     const tab = deps.activeTab.value;
     if (!tab || !sql.trim()) return;
+    if (requiresDatabaseSelection(tab, deps.activeConnection.value)) {
+      deps.onMissingDatabase?.();
+      return;
+    }
     deps.activeOutputView.value = "result";
     const connName = connectionStore.getConfig(tab.connectionId)?.name || "";
     const start = Date.now();
@@ -181,3 +191,10 @@ export function useSqlExecution(deps: {
     explainMode,
   };
 }
+
+function requiresDatabaseSelection(tab: QueryTab, connection: ConnectionConfig | undefined): boolean {
+  if (tab.mode !== "query") return false;
+  if (!connection || tab.database) return false;
+  if (isSingleDatabase(connection.db_type)) return false;
+  return !["elasticsearch", "qdrant", "milvus", "weaviate", "chromadb", "zookeeper"].includes(connection.db_type);
+}