feat: auto sync for cloud and fix some firefox weirdness

lib/firefoxStripFunctionProbe.ts

@@ -0,0 +1,43 @@
+import type { Plugin } from "vite";
+
+/**
+ * Firefox extension pages forbid eval / `Function` constructor. Some deps still emit:
+ * - `Function(\`return this\`)()` (lodash-style global)
+ * - `try { return Function(\`\`) / new Function("") … }` (feature probes, e.g. PDF.js / ORT)
+ */
+export function firefoxStripFunctionProbe(): Plugin {
+  return {
+    name: "firefox-strip-function-probe",
+    apply: "build",
+    enforce: "post",
+    generateBundle(_options, bundle) {
+      if ((process.env.MODE || "chrome").toLowerCase() !== "firefox") return;
+
+      const literalReplacements: [string, string][] = [
+        ['try{return new Function(""),!0}catch{return!1}', "return!1"],
+        ["try{return new Function(''),!0}catch{return!1}", "return!1"],
+        ['try{return new Function(""),true}catch{return false}', "return false"],
+        ["try{return new Function(''),true}catch{return false}", "return false"],
+        // Empty template literal probe (minifier output)
+        ["try{return Function(``),!0}catch{return!1}", "return!1"],
+      ];
+
+      for (const chunk of Object.values(bundle)) {
+        if (chunk.type !== "chunk" || typeof chunk.code !== "string") continue;
+        let { code } = chunk;
+
+        code = code.replace(/Function\(`return this`\)\(\)/g, "(globalThis)");
+        code = code.replace(/Function\("return this"\)\(\)/g, "(globalThis)");
+        code = code.replace(/Function\('return this'\)\(\)/g, "(globalThis)");
+
+        for (const [from, to] of literalReplacements) {
+          if (code.includes(from)) {
+            code = code.split(from).join(to);
+          }
+        }
+
+        chunk.code = code;
+      }
+    },
+  };
+}