fix: improve SQL queries for tenant desktop task cancellation and add deleted_at field to PublishRecord

server/internal/tenant/repository/queries/desktop_task.sql

@@ -190,26 +190,26 @@ WHERE t.desktop_id = sqlc.arg(desktop_id)
 RETURNING t.*;
 
 -- name: TenantCancelDesktopTask :one
-UPDATE desktop_tasks
+UPDATE desktop_tasks AS t
 SET status = 'aborted',
     error = sqlc.narg(error),
     active_attempt_id = NULL,
     lease_token_hash = NULL,
     lease_expires_at = NULL,
     updated_at = now()
-WHERE desktop_id = sqlc.arg(desktop_id)
-  AND tenant_id = sqlc.arg(tenant_id)
-  AND workspace_id = sqlc.arg(workspace_id)
-  AND status = 'queued'
+WHERE t.desktop_id = sqlc.arg(desktop_id)
+  AND t.tenant_id = sqlc.arg(tenant_id)
+  AND t.workspace_id = sqlc.arg(workspace_id)
+  AND t.status = 'queued'
   AND EXISTS (
     SELECT 1
     FROM desktop_publish_jobs AS j
-    WHERE j.desktop_id = desktop_tasks.job_id
-      AND j.tenant_id = desktop_tasks.tenant_id
-      AND j.workspace_id = desktop_tasks.workspace_id
+    WHERE j.desktop_id = t.job_id
+      AND j.tenant_id = t.tenant_id
+      AND j.workspace_id = t.workspace_id
       AND j.created_by_user_id = sqlc.arg(user_id)
   )
-RETURNING *;
+RETURNING t.*;
 
 -- name: ReconcileDesktopTask :one
 UPDATE desktop_tasks