fix: reduce ClickHouse CPU by increasing flush interval, rename LIVE→AUTO labels

- Increase ingestion flush interval from 500ms to 5000ms to reduce MV merge storms
- Reduce ClickHouse background_schedule_pool_size from 8 to 4
- Rename LIVE/PAUSED badge labels to AUTO/MANUAL across all pages
- Update design system to v0.1.29

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

deploy/clickhouse.yaml

@@ -153,7 +153,7 @@ data:
         <background_move_pool_size>1</background_move_pool_size>
         <background_fetches_pool_size>1</background_fetches_pool_size>
         <background_common_pool_size>2</background_common_pool_size>
-        <background_schedule_pool_size>8</background_schedule_pool_size>
+        <background_schedule_pool_size>4</background_schedule_pool_size>
         <background_message_broker_schedule_pool_size>1</background_message_broker_schedule_pool_size>
         <background_distributed_schedule_pool_size>1</background_distributed_schedule_pool_size>
         <tables_loader_foreground_pool_size>0</tables_loader_foreground_pool_size>