- Remove initial 'running' history entry (orphans when PHP times out)
- Add purgeStaleRunning() to mark old 'running' entries as 'timeout' on next deploy
- Add set_time_limit(300) to prevent PHP timeout during large ZIP download
- Add timestamps to log file entries for easier debugging
- Include ZIP size and source URL in success detail
- History now keeps last 20 entries (was 12)
- Show dash instead of blank for entries with no detail
- Style 'timeout' status same as 'failed' (red pill)