fix(ui): 修复 Skills 管理与模型配置交互展示问题 (#4323)

* fix(ui): improve skills and provider interactions

* fix(skills): keep repo manager available on skills.sh

* test(skills): cover repo switch after refresh

* fix(skills): keep refresh available for empty repo results

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Co-authored-by: thisTom <19346741+thisTom@users.noreply.github.com>

src/components/ui/select.tsx

@@ -1,6 +1,6 @@
 import * as React from "react";
 import * as SelectPrimitive from "@radix-ui/react-select";
-import { ChevronDown, ChevronUp } from "lucide-react";
+import { Check, ChevronDown, ChevronUp } from "lucide-react";
 import { cn } from "@/lib/utils";
 
 const Select = SelectPrimitive.Root;
@@ -87,6 +87,11 @@ const SelectItem = React.forwardRef<
     )}
     {...props}
   >
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <SelectPrimitive.ItemIndicator>
+        <Check className="h-4 w-4" />
+      </SelectPrimitive.ItemIndicator>
+    </span>
     <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
   </SelectPrimitive.Item>
 ));