## Summary
Optimizes the runs replication service for better CPU efficiency and
throughput when inserting task runs into ClickHouse.
### Key Changes
- **Switch to compact array format** - Uses
`JSONCompactEachRowWithNames` instead of `JSONEachRow` for ClickHouse
inserts, reducing JSON serialization overhead
- **Type-safe tuple arrays** - Introduces `TaskRunInsertArray` and
`PayloadInsertArray` tuple types with compile-time column order
validation
- **Pre-sorted batch inserts** - Sorts inserts by primary key before
flushing for better ClickHouse insert performance
- **Programmatic index generation** - `TASK_RUN_INDEX` and
`PAYLOAD_INDEX` are generated from column arrays to prevent manual
synchronization errors
### Files Changed
- `runsReplicationService.server.ts` - Core optimization to use compact
array inserts
- `@internal/clickhouse` - Added `insertCompactRaw` method and tuple
types
- `taskRuns.ts` - Column definitions, index constants, and insert
functions
---------
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Eric Allam
bb253400a2