feat(connection): show agent driver install hint for domestic databases

src/components/connection/ConnectionDialog.vue

@@ -17,6 +17,7 @@ import * as api from "@/lib/api";
 import { isTauriRuntime } from "@/lib/tauriRuntime";
 import { applyParsedConnectionUrl, parseConnectionUrl } from "@/lib/connectionUrl";
 import { connectionUrlPlaceholder as getUrlPlaceholder } from "@/lib/connectionPresentation";
+import { AGENT_DRIVER_TYPES } from "@/lib/databaseCapabilities";
 import { ArrowLeft, ChevronRight, Copy, ExternalLink, FolderOpen, Grid3X3, Link2, List, Search } from "lucide-vue-next";
 
 type DbOption = { value: string; label: string };
@@ -1094,6 +1095,13 @@ function openExternalUrl(url: string) {
                     <Input v-model="form.database" class="col-span-3" :placeholder="databasePlaceholder" />
                   </div>
 
+                  <div v-if="AGENT_DRIVER_TYPES.has(form.db_type)" class="grid grid-cols-4 items-center gap-4">
+                    <span />
+                    <p class="col-span-3 text-xs text-muted-foreground">
+                      需要在设置 → 驱动中安装对应的 Agent 驱动才能连接。
+                    </p>
+                  </div>
+
                   <div v-if="form.db_type === 'oracle'" class="grid grid-cols-4 items-center gap-4">
                     <Label class="text-right text-xs">SYSDBA</Label>
                     <label class="col-span-3 flex items-center gap-2 cursor-pointer">