feat(files): add per-channel storage quota [CI]

contracts/api.schemas.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "x-backend-contract-sha256": "654ec761e3481b423296b402497a97f4092ce167e7a2ca51a47d25f0fca4466e",
+  "x-backend-contract-sha256": "ba787115471d5d33fb0c33c95af014b5cd0d535455bd4bea037cfdcc4f048828",
   "$defs": {
     "AccountChannelBody": {
       "type": "object",
@@ -1431,6 +1431,12 @@
         "max_visitors": {
           "type": "integer"
         },
+        "max_workspace_bytes": {
+          "type": "integer"
+        },
+        "max_workspace_channel_bytes": {
+          "type": "integer"
+        },
         "min_ttl_seconds": {
           "type": "integer"
         }
@@ -1443,6 +1449,8 @@
         "max_seats",
         "max_ttl_seconds",
         "max_visitors",
+        "max_workspace_bytes",
+        "max_workspace_channel_bytes",
         "min_ttl_seconds"
       ]
     },
@@ -1748,6 +1756,9 @@
         "createdBy": {
           "type": "string"
         },
+        "fileBytes": {
+          "type": "integer"
+        },
         "filesEpoch": {
           "type": "integer"
         },
@@ -1776,6 +1787,7 @@
         "chatHistory",
         "createdAt",
         "createdBy",
+        "fileBytes",
         "filesEpoch",
         "filesHistory",
         "id",