Q161: the home page measures accepted work, not sessions that merely ended

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main/database/migrations/103-work-verdicts.ts

@@ -0,0 +1,37 @@
+// Verdicts on plain work, kept apart from tasks so deletions cannot rewrite them; past ones are read once from the audit trail.
+export const workVerdictsSchema = `
+  create table if not exists work_verdicts (
+    id text primary key,
+    org_id text not null references organizations(id) on delete cascade,
+    task_id text,
+    verdict text not null check (verdict in ('accepted', 'returned')),
+    at text not null
+  );
+  create index if not exists work_verdicts_org_at on work_verdicts(org_id, at);
+
+  with moves as (
+    select e.id, e.org_id, e.entity_id as task_id, e.created_at as at, json_extract(e.payload_json, '$.status') as status,
+      lag(json_extract(e.payload_json, '$.status')) over (partition by e.entity_id order by e.created_at, e.rowid) as from_status
+    from audit_events e
+    where e.entity_type = 'task' and e.action = 'status_changed'
+  )
+  insert into work_verdicts(id, org_id, task_id, verdict, at)
+  select 'wv_' || m.id, m.org_id, m.task_id,
+    case when m.status = 'done' then 'accepted' else 'returned' end, m.at
+  from moves m join tasks t on t.id = m.task_id and t.origin is null
+  where (m.status = 'done' and coalesce(m.from_status, '') <> 'done')
+     or (m.from_status in ('review', 'done') and m.status in ('in_progress', 'backlog')
+         and not exists (
+           select 1 from approvals a join held_deliverables h on h.approval_id = a.id
+           where h.task_id = m.task_id and a.kind = 'deliverable_review' and a.state = 'declined'
+             and abs(julianday(m.at) - julianday(a.decided_at)) * 86400 < 5
+         ));
+
+  insert into work_verdicts(id, org_id, task_id, verdict, at)
+  select 'wv_' || a.id, a.org_id, h.task_id, 'returned', a.decided_at
+  from approvals a join held_deliverables h on h.approval_id = a.id join tasks t on t.id = h.task_id and t.origin is null
+  where a.kind = 'deliverable_review' and a.state = 'declined' and a.decided_at is not null;
+
+  insert into schema_migrations(version, name, applied_at)
+  values (103, 'work_verdicts', datetime('now'));
+`;

src/main/database/schema.ts

@@ -101,6 +101,7 @@ import { dropRollbackRecordsSchema } from "./migrations/099-drop-rollback-record
 import { chatReplyRequestsSchema } from "./migrations/100-chat-reply-requests";
 import { taskBlockedSchema } from "./migrations/101-task-blocked";
 import { goalDueDateSchema } from "./migrations/102-goal-due-date";
+import { workVerdictsSchema } from "./migrations/103-work-verdicts";
 
 interface Migration {
   version: number;
@@ -211,6 +212,7 @@ const MIGRATIONS: Migration[] = [
   { version: 100, name: "chat_reply_requests", sql: chatReplyRequestsSchema },
   { version: 101, name: "task_blocked", sql: taskBlockedSchema },
   { version: 102, name: "goal_due_date", sql: goalDueDateSchema },
+  { version: 103, name: "work_verdicts", sql: workVerdictsSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;