fix(POSTV1-02): 修复便携网页静态资源类型

apps/api/src/app.ts

@@ -1,6 +1,6 @@
 import { randomBytes, randomUUID } from "node:crypto";
 import { createReadStream, existsSync, readFileSync } from "node:fs";
-import { resolve } from "node:path";
+import { extname, resolve } from "node:path";
 
 import {
   AccountDeletionCompleteRequestSchema,
@@ -218,6 +218,24 @@ import type { ManagedStorage } from "./managed-storage.js";
 import { PrivateContentError, PrivateContentService } from "./private-content.js";
 import { assertSafeAdminDiagnostics, assertSafeAdminServicesStorage } from "./admin-state.js";
 
+const productAssetContentTypes: Readonly<Record<string, string>> = {
+  ".css": "text/css; charset=utf-8",
+  ".jpeg": "image/jpeg",
+  ".jpg": "image/jpeg",
+  ".js": "text/javascript; charset=utf-8",
+  ".json": "application/json; charset=utf-8",
+  ".mjs": "text/javascript; charset=utf-8",
+  ".png": "image/png",
+  ".svg": "image/svg+xml",
+  ".webp": "image/webp",
+  ".woff": "font/woff",
+  ".woff2": "font/woff2",
+};
+
+function productAssetContentType(path: string) {
+  return productAssetContentTypes[extname(path).toLowerCase()] ?? "application/octet-stream";
+}
+
 const defaultBootstrap: BootstrapResponse = {
   app_version: "0.0.0",
   dependencies: [],
@@ -923,6 +941,7 @@ export async function createApp(options: CreateAppOptions = {}) {
     const relativePath = decodeURIComponent(request.url.split("?", 1)[0]!.slice("/assets/".length));
     const assetPath = resolve(productWebRoot, "assets", relativePath);
     if (!assetPath.startsWith(resolve(productWebRoot, "assets")) || !existsSync(assetPath)) return reply.code(404).send();
+    reply.type(productAssetContentType(assetPath));
     return reply.send(readFileSync(assetPath));
   });
   app.get("/support-gate.css", { schema: { hide: true } }, async (_request, reply) => {