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/@smithy/eventstream-codec/dist-es/Int64.js

@@ -0,0 +1,44 @@
+import { toHex } from "@smithy/util-hex-encoding";
+export class Int64 {
+    bytes;
+    constructor(bytes) {
+        this.bytes = bytes;
+        if (bytes.byteLength !== 8) {
+            throw new Error("Int64 buffers must be exactly 8 bytes");
+        }
+    }
+    static fromNumber(number) {
+        if (number > 9_223_372_036_854_775_807 || number < -9_223_372_036_854_775_808) {
+            throw new Error(`${number} is too large (or, if negative, too small) to represent as an Int64`);
+        }
+        const bytes = new Uint8Array(8);
+        for (let i = 7, remaining = Math.abs(Math.round(number)); i > -1 && remaining > 0; i--, remaining /= 256) {
+            bytes[i] = remaining;
+        }
+        if (number < 0) {
+            negate(bytes);
+        }
+        return new Int64(bytes);
+    }
+    valueOf() {
+        const bytes = this.bytes.slice(0);
+        const negative = bytes[0] & 0b10000000;
+        if (negative) {
+            negate(bytes);
+        }
+        return parseInt(toHex(bytes), 16) * (negative ? -1 : 1);
+    }
+    toString() {
+        return String(this.valueOf());
+    }
+}
+function negate(bytes) {
+    for (let i = 0; i < 8; i++) {
+        bytes[i] ^= 0xff;
+    }
+    for (let i = 7; i > -1; i--) {
+        bytes[i]++;
+        if (bytes[i] !== 0)
+            break;
+    }
+}