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

---------

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

tests/components/SelectItemIndicator.test.ts

@@ -0,0 +1,39 @@
+import fs from "node:fs";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+
+const SELECT_TSX = path.resolve(
+  __dirname,
+  "..",
+  "..",
+  "src",
+  "components",
+  "ui",
+  "select.tsx",
+);
+
+const stripComments = (source: string) =>
+  source.replace(/\/\*[\s\S]*?\*\//g, "").replace(/(^|[^:])\/\/.*$/gm, "$1");
+
+describe("SelectItem indicator structure", () => {
+  const source = stripComments(fs.readFileSync(SELECT_TSX, "utf8"));
+
+  it("renders an item indicator before item text", () => {
+    const indicatorIndex = source.indexOf("SelectPrimitive.ItemIndicator");
+    const itemTextIndex = source.indexOf("SelectPrimitive.ItemText");
+
+    expect(indicatorIndex).toBeGreaterThan(-1);
+    expect(itemTextIndex).toBeGreaterThan(-1);
+    expect(indicatorIndex).toBeLessThan(itemTextIndex);
+  });
+
+  it("wraps the indicator in the first direct span", () => {
+    const itemTextIndex = source.indexOf("SelectPrimitive.ItemText");
+    const beforeItemText = source.slice(0, itemTextIndex);
+    const lastSpanOpen = beforeItemText.lastIndexOf("<span");
+    const lastIndicator = beforeItemText.lastIndexOf("ItemIndicator");
+
+    expect(lastSpanOpen).toBeGreaterThan(-1);
+    expect(lastSpanOpen).toBeLessThan(lastIndicator);
+  });
+});