feat: scope articles by brand

server/migrations_ops/20260520144000_drop_scheduler_job_runs_auto_started_index.down.sql

@@ -0,0 +1,3 @@
+CREATE INDEX IF NOT EXISTS idx_scheduler_job_runs_auto_started
+    ON ops.scheduler_job_runs (job_key, started_at DESC, id DESC)
+    WHERE trigger_type = 'auto';

server/migrations_ops/20260520144000_drop_scheduler_job_runs_auto_started_index.up.sql

@@ -0,0 +1 @@
+DROP INDEX IF EXISTS ops.idx_scheduler_job_runs_auto_started;