[Sentinel] Cost spike detected — possible cause: feat: Langfuse source spec in root

[furyfist]

1. What happened: A cost spike was detected at 19:00:00 on 2026-05-25, with an hourly cost of $7.59, exceeding the baseline average of $0.60.

2. Likely cause: The commits made by "furyfist" between 10:11:49Z and 18:29:05Z on 2026-05-25 may have contributed to the cost spike. Notably, commits with shas "36217a10ade9896ce5416674ef5234525b4eac20" and "7564a1f479dfb12140d422a18e05c7ebceeea6e8" were made close to the time of the spike.

3. Impact: The cost spike resulted in an hourly cost of $7.59, which is significantly higher than the baseline average of $0.60. The total cost after the commits is approximately $13.20.

4. Recommended action: Review the recent commits, especially those made by "furyfist", and investigate the changes made in commits "36217a10ade9896ce5416674ef5234525b4eac20" and "7564a1f479dfb12140d422a18e05c7ebceeea6e8" to identify potential causes of the cost spike. Optimize the code to reduce costs and prevent similar spikes in the future.