fix(canvas): 提示词优化器 - 隔离多实例浮层定位并修复路由预加载测试

web/test/prompt-optimizer-drawer.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, test } from "bun:test";
+import { readFileSync } from "node:fs";
+import { resolve } from "node:path";
+
+const source = readFileSync(resolve(import.meta.dir, "../src/components/canvas/canvas-prompt-optimizer-drawer.tsx"), "utf8");
+
+describe("prompt optimizer drawer instance isolation", () => {
+    test("resolves the popover from the current drawer content instead of the first global match", () => {
+        expect(source).toContain("const contentRef = useRef<HTMLDivElement | null>(null);");
+        expect(source).toContain('contentRef.current?.closest<HTMLElement>(".canvas-prompt-optimizer-popover")');
+        expect(source).toContain('<div ref={contentRef} className={`canvas-prompt-optimizer-panel');
+        expect(source).not.toContain('document.querySelector<HTMLElement>(".canvas-prompt-optimizer-popover")');
+    });
+});