Add store header OCR and market observation outbox

vite.config.js

@@ -0,0 +1,74 @@
+import { defineConfig, loadEnv } from "vite";
+
+const MAX_BATCH_BYTES = 512 * 1024;
+
+export async function forwardMarketBatch(body, { url, token, fetchImpl = fetch }) {
+  if (!url || !token) return new Response("Market import is not configured", { status: 503 });
+  return fetchImpl(url, {
+    method: "POST",
+    headers: { Authorization: `Bearer ${token}`, "Content-Type": "application/json" },
+    body,
+  });
+}
+
+function marketImportProxy(options) {
+  return {
+    name: "market-import-proxy",
+    configureServer(server) {
+      server.middlewares.use("/api/market-import", async (request, response) => {
+        if (request.method !== "POST") {
+          response.statusCode = 405;
+          response.end();
+          return;
+        }
+
+        try {
+          const body = await readBody(request);
+          const upstream = await forwardMarketBatch(body, options);
+          response.statusCode = upstream.status;
+          response.setHeader("Content-Type", upstream.headers.get("content-type") || "application/json");
+          response.end(await upstream.text());
+        } catch (error) {
+          response.statusCode = error.code === "BATCH_TOO_LARGE" ? 413 : 502;
+          response.end(error.code === "BATCH_TOO_LARGE" ? "Batch too large" : "Market import failed");
+        }
+      });
+    },
+  };
+}
+
+function readBody(request) {
+  return new Promise((resolve, reject) => {
+    const chunks = [];
+    let size = 0;
+    let tooLarge = false;
+    request.on("data", (chunk) => {
+      if (tooLarge) return;
+      size += chunk.length;
+      if (size > MAX_BATCH_BYTES) {
+        tooLarge = true;
+        const error = new Error("Batch too large");
+        error.code = "BATCH_TOO_LARGE";
+        reject(error);
+        return;
+      }
+      chunks.push(chunk);
+    });
+    request.on("end", () => {
+      if (!tooLarge) resolve(Buffer.concat(chunks).toString("utf8"));
+    });
+    request.on("error", reject);
+  });
+}
+
+export default defineConfig(({ mode }) => {
+  const environment = loadEnv(mode, process.cwd(), "");
+  return {
+    plugins: [
+      marketImportProxy({
+        url: environment.L2_MARKET_IMPORT_URL,
+        token: environment.L2_MARKET_IMPORT_TOKEN,
+      }),
+    ],
+  };
+});