fix:writeText不可用问题

frontend/app/components/platform/VersionReceiptModal.tsx

@@ -1,5 +1,6 @@
 import Icon from "../common/Icon";
 import type { StableVersion } from "../../services/api";
+import { copyToClipboard } from "../../lib/clipboard";
 
 type VersionReceiptModalProps = {
   publishedVersion: StableVersion | null;
@@ -31,10 +32,8 @@ export function VersionReceiptModal({
           <code>{publishedVersion.versions_id}</code>
           <button
             type="button"
-            onClick={() => {
-              void navigator.clipboard.writeText(
-                publishedVersion.versions_id,
-              );
+            onClick={async () => {
+              await copyToClipboard(publishedVersion.versions_id);
               onCopy("versions_id 已复制");
             }}
           >

frontend/app/features/platform/ScriptsPage.tsx

@@ -13,6 +13,7 @@ import { VersionReceiptModal } from "../../components/platform/VersionReceiptMod
 import { getSessionCache, useScriptWorkspaceStore } from "./state/scriptWorkspaceStore";
 import { useUiStore } from "./state/uiStore";
 import { ScriptWorkspace } from "./ScriptWorkspace";
+import { copyToClipboard } from "../../lib/clipboard";
 
 export default function ScriptsPage() {
   const { currentWorkspace, user } = useAuth();
@@ -263,7 +264,7 @@ export default function ScriptsPage() {
       stripped = stripped.slice(fullPrefix.length);
     }
     try {
-      await navigator.clipboard.writeText(stripped);
+      await copyToClipboard(stripped);
       pushToast({ tone: "success", message: `已复制：${stripped}` });
     } catch {
       pushToast({ tone: "error", message: "复制失败" });

frontend/app/lib/clipboard.ts

@@ -0,0 +1,31 @@
+/**
+ * 复制文本到剪贴板 - 兼容 HTTP 和 HTTPS 环境
+ *
+ * 在 HTTPS 环境下使用现代 Clipboard API
+ * 在 HTTP 环境下降级使用 execCommand 方案
+ *
+ * @param text - 要复制的文本
+ * @returns Promise<void>
+ */
+export async function copyToClipboard(text: string): Promise<void> {
+  // 优先使用现代 Clipboard API (HTTPS 环境)
+  if (navigator.clipboard?.writeText) {
+    await navigator.clipboard.writeText(text);
+    return;
+  }
+
+  // 降级方案：execCommand (HTTP 环境 / 旧浏览器)
+  const textarea = document.createElement("textarea");
+  textarea.value = text;
+  textarea.style.position = "fixed";
+  textarea.style.opacity = "0";
+  textarea.style.left = "-9999px";
+  document.body.appendChild(textarea);
+  textarea.select();
+
+  try {
+    document.execCommand("copy");
+  } finally {
+    document.body.removeChild(textarea);
+  }
+}