fix(POSTV1-01): 在最终包中提供产品网页与同源API

apps/api/src/app.ts

@@ -1,5 +1,5 @@
 import { randomBytes, randomUUID } from "node:crypto";
-import { createReadStream, readFileSync } from "node:fs";
+import { createReadStream, existsSync, readFileSync } from "node:fs";
 import { resolve } from "node:path";
 
 import {
@@ -272,6 +272,10 @@ const supportGateDirectory = resolve(process.env.DADA_SUPPORT_GATE_ROOT ?? "apps
 const supportGateHtml = readFileSync(resolve(supportGateDirectory, "index.html"), "utf8");
 const supportGateCss = readFileSync(resolve(supportGateDirectory, "support-gate.css"), "utf8");
 const supportGateJavaScript = readFileSync(resolve(supportGateDirectory, "support-gate.js"), "utf8");
+const productWebRoot = resolve(process.env.DADA_WEB_ROOT ?? "apps/web/dist");
+const productIndexHtml = existsSync(resolve(productWebRoot, "index.html"))
+  ? readFileSync(resolve(productWebRoot, "index.html"), "utf8")
+  : undefined;
 const clientHints = "Sec-CH-UA, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform";
 const contentSecurityPolicy = [
   "default-src 'self'",
@@ -903,9 +907,15 @@ export async function createApp(options: CreateAppOptions = {}) {
   for (const route of ["/", "/app", "/app/*", "/admin", "/admin/*"]) {
     app.get(route, { schema: { hide: true } }, async (_request, reply) => {
       reply.type("text/html; charset=utf-8");
-      return supportGateHtml;
+      return productIndexHtml ?? supportGateHtml;
     });
   }
+  app.get("/assets/*", { schema: { hide: true } }, async (request, reply) => {
+    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();
+    return reply.send(readFileSync(assetPath));
+  });
   app.get("/support-gate.css", { schema: { hide: true } }, async (_request, reply) => {
     reply.type("text/css; charset=utf-8");
     return supportGateCss;