feat(billing): cap each owner's stored file volume

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/lib/useOrgChat.ts

@@ -1,6 +1,8 @@
+import axios from 'axios';
 import { computed, ref, shallowRef } from 'vue';
-import type { ConversationRoomDto, ConversationSessionDto } from '@mento/shared';
+import type { ConversationRoomDto, ConversationSessionDto, StorageUsageDto } from '@mento/shared';
 import { api } from '@/lib/api';
+import { useAuthStore } from '@/stores/auth';
 
 export type ChatDelivery = 'sending' | 'sent' | 'read';
 
@@ -1344,8 +1346,14 @@ export async function refreshUnreadTotal() {
 }
 
 export function useOrgChat() {
+  const auth = useAuthStore();
   const loadingMessages = ref(false);
 
+  function rememberStorage(usage: StorageUsageDto) {
+    if (!auth.user) return;
+    auth.setUser({ ...auth.user, storage: usage });
+  }
+
   async function ensureConnected() {
     await connectSocket();
   }
@@ -1696,10 +1704,15 @@ export function useOrgChat() {
         }
       }
       setProgress(12);
+      await api.post('/conversations/files/reserve', { bytes: fileForUpload.size });
       const uploadedPath = await uploadChatFile(session.uploadUrl, fileForUpload, (p) => {
         setProgress(12 + Math.round(p * 0.86));
       });
       setProgress(99);
+      const committed = await api.post<StorageUsageDto>('/conversations/files/commit', {
+        bytes: fileForUpload.size,
+      });
+      rememberStorage(committed.data);
       await sendMediaPath(roomId, uploadedPath, type, {
         reply,
         fileName: outboundFileName,
@@ -1715,6 +1728,11 @@ export function useOrgChat() {
           // ignore
         }
       }
+      if (axios.isAxiosError(e)) {
+        const raw = (e.response?.data as { message?: string | string[] } | undefined)?.message;
+        const text = Array.isArray(raw) ? raw.join(' ') : raw;
+        if (text) throw new Error(text);
+      }
       throw e;
     }
   }