feed: select uploadCompletionCursor on VideoCardFields stream

Lets the client distinguish a finalized-but-not-fully-uploaded stream
(is_completed set, but received cursor short of last_intended_segment_bound)
from one that is genuinely processing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/index.tsx

@@ -260,6 +260,15 @@ export type ClusterAssignmentInput = {
   userId?: InputMaybe<Scalars["Int"]["input"]>;
 };
 
+export type CohortStatsGql = {
+  __typename?: "CohortStatsGQL";
+  activated7d: Scalars["Int"]["output"];
+  activatedNotPaid7d: Scalars["Int"]["output"];
+  paid7d: Scalars["Int"]["output"];
+  signups: Scalars["Int"]["output"];
+  weekStart: Scalars["Date"]["output"];
+};
+
 export type CommentGql = {
   __typename?: "CommentGQL";
   id: Scalars["Int"]["output"];
@@ -3993,6 +4002,7 @@ export type UsageStatsDailyGql = {
 
 export type UsageStatsGql = {
   __typename?: "UsageStatsGQL";
+  cohorts: Array<CohortStatsGql>;
   daily: Array<UsageStatsDailyGql>;
   funnel: FunnelStatsGql;
   processingLast24h: Array<ProcessingStatusCountGql>;
@@ -4774,6 +4784,7 @@ export type GetFeedQuery = {
         __typename?: "UploadStreamGQL";
         id: string;
         lastIntendedSegmentBound?: number | null;
+        uploadCompletionCursor: number;
         streamSegmentType: StreamSegmentTypeEnum;
         isCompleted: boolean;
         lastSegmentUploadedAt?: any | null;
@@ -4888,6 +4899,7 @@ export type VideoCardFieldsFragment = {
     __typename?: "UploadStreamGQL";
     id: string;
     lastIntendedSegmentBound?: number | null;
+    uploadCompletionCursor: number;
     streamSegmentType: StreamSegmentTypeEnum;
     isCompleted: boolean;
     lastSegmentUploadedAt?: any | null;
@@ -5035,6 +5047,7 @@ export type GetVideoFeedQuery = {
         __typename?: "UploadStreamGQL";
         id: string;
         lastIntendedSegmentBound?: number | null;
+        uploadCompletionCursor: number;
         streamSegmentType: StreamSegmentTypeEnum;
         isCompleted: boolean;
         lastSegmentUploadedAt?: any | null;
@@ -7555,6 +7568,14 @@ export type GetUsageStatsQuery = {
       retentionPrevActive: number;
       retentionReturned: number;
     };
+    cohorts: Array<{
+      __typename?: "CohortStatsGQL";
+      weekStart: any;
+      signups: number;
+      activated7d: number;
+      paid7d: number;
+      activatedNotPaid7d: number;
+    }>;
     windows: Array<{
       __typename?: "UsageStatsWindowGQL";
       label: string;
@@ -8175,6 +8196,7 @@ export type GetVideoCardQuery = {
       __typename?: "UploadStreamGQL";
       id: string;
       lastIntendedSegmentBound?: number | null;
+      uploadCompletionCursor: number;
       streamSegmentType: StreamSegmentTypeEnum;
       isCompleted: boolean;
       lastSegmentUploadedAt?: any | null;
@@ -9002,6 +9024,7 @@ export const VideoCardFieldsFragmentDoc = gql`
     stream {
       id
       lastIntendedSegmentBound
+      uploadCompletionCursor
       streamSegmentType
       isCompleted
       lastSegmentUploadedAt
@@ -16142,6 +16165,13 @@ export const GetUsageStatsDocument = gql`
         retentionPrevActive
         retentionReturned
       }
+      cohorts {
+        weekStart
+        signups
+        activated7d
+        paid7d
+        activatedNotPaid7d
+      }
       totalUsers
       totalVideos
       totalShots

src/operations/feed.gql

@@ -41,6 +41,7 @@ fragment VideoCardFields on VideoGQL {
   stream {
     id
     lastIntendedSegmentBound
+    uploadCompletionCursor
     streamSegmentType
     isCompleted
     lastSegmentUploadedAt

src/operations/usage_stats.gql

@@ -12,6 +12,13 @@ query getUsageStats($days: Int! = 30) {
       retentionPrevActive
       retentionReturned
     }
+    cohorts {
+      weekStart
+      signups
+      activated7d
+      paid7d
+      activatedNotPaid7d
+    }
     totalUsers
     totalVideos
     totalShots

src/schema.gql

@@ -1183,6 +1183,7 @@ type UsageStatsGQL {
   totalVideos: Int!
   totalShots: Int!
   totalRuns: Int!
+  cohorts: [CohortStatsGQL!]!
   windows: [UsageStatsWindowGQL!]!
   daily: [UsageStatsDailyGQL!]!
   processingLast24h: [ProcessingStatusCountGQL!]!
@@ -1201,6 +1202,14 @@ type FunnelStatsGQL {
   retentionReturned: Int!
 }
 
+type CohortStatsGQL {
+  weekStart: Date!
+  signups: Int!
+  activated7d: Int!
+  paid7d: Int!
+  activatedNotPaid7d: Int!
+}
+
 type UsageStatsWindowGQL {
   label: String!
   newUsers: Int!