fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/@aws-sdk/middleware-expect-continue/dist-cjs/index.js

@@ -0,0 +1,48 @@
+'use strict';
+
+var protocolHttp = require('@smithy/protocol-http');
+
+function addExpectContinueMiddleware(options) {
+    return (next) => async (args) => {
+        const { request } = args;
+        if (options.expectContinueHeader !== false &&
+            protocolHttp.HttpRequest.isInstance(request) &&
+            request.body &&
+            options.runtime === "node" &&
+            options.requestHandler?.constructor?.name !== "FetchHttpHandler") {
+            let sendHeader = true;
+            if (typeof options.expectContinueHeader === "number") {
+                try {
+                    const bodyLength = Number(request.headers?.["content-length"]) ?? options.bodyLengthChecker?.(request.body) ?? Infinity;
+                    sendHeader = bodyLength >= options.expectContinueHeader;
+                }
+                catch (e) { }
+            }
+            else {
+                sendHeader = !!options.expectContinueHeader;
+            }
+            if (sendHeader) {
+                request.headers.Expect = "100-continue";
+            }
+        }
+        return next({
+            ...args,
+            request,
+        });
+    };
+}
+const addExpectContinueMiddlewareOptions = {
+    step: "build",
+    tags: ["SET_EXPECT_HEADER", "EXPECT_HEADER"],
+    name: "addExpectContinueMiddleware",
+    override: true,
+};
+const getAddExpectContinuePlugin = (options) => ({
+    applyToStack: (clientStack) => {
+        clientStack.add(addExpectContinueMiddleware(options), addExpectContinueMiddlewareOptions);
+    },
+});
+
+exports.addExpectContinueMiddleware = addExpectContinueMiddleware;
+exports.addExpectContinueMiddlewareOptions = addExpectContinueMiddlewareOptions;
+exports.getAddExpectContinuePlugin = getAddExpectContinuePlugin;