fix(quota): replace hardcoded 1GB storage with EffectiveQuota lookup

- UsersService.getStorage() now reads storage_bytes from EffectiveQuota
- Falls back to 1GB only when quota service is unavailable
- iOS already reads from /membership/me (CLOSE-01C)

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

src/modules/users/users.service.ts

@@ -2,6 +2,7 @@ import { Injectable, BadRequestException, NotFoundException, Inject, Optional }
 import { UsersRepository } from './users.repository';
 import { PrismaService } from '../../infrastructure/database/prisma.service';
 import { EffectiveMembershipService } from '../membership/effective-membership.service';
+import { EffectiveQuotaService } from '../membership/effective-quota.service';
 
 const DELETION_COOLING_DAYS = 7;
 
@@ -12,6 +13,7 @@ export class UsersService {
     private readonly prisma: PrismaService,
     // M-MEMBER-01-04: 可选注入——避免循环依赖。未注入时回退旧逻辑。
     @Optional() @Inject(EffectiveMembershipService) private readonly membershipService?: EffectiveMembershipService,
+    @Optional() @Inject(EffectiveQuotaService) private readonly quotaService?: EffectiveQuotaService,
   ) {}
 
   async getProfile(userId: string) { return this.usersRepository.findProfileByUserId(userId); }
@@ -90,7 +92,15 @@ export class UsersService {
       select: { sizeBytes: true, mimeType: true },
     });
     const usedBytes = files.reduce((sum, f) => sum + Number(f.sizeBytes), 0);
-    const totalBytes = 1024 * 1024 * 1024; // 1GB hardcoded for now
+    // M-MEMBER-01-CLOSE-01E: 从 EffectiveQuota 读取真实存储配额，不再硬编码 1GB
+    let totalBytes = 1073741824; // fallback（quota 不可用时）
+    if (this.quotaService) {
+      try {
+        const q = await this.quotaService.computeEffectiveQuota(userId);
+        const storageLimit = q.limits.find(l => l.quotaType === 'storage_bytes');
+        if (storageLimit && !storageLimit.isUnlimited) totalBytes = storageLimit.limit;
+      } catch { /* keep fallback */ }
+    }
     return { totalBytes, usedBytes, fileCount: files.length };
   }