trelix v1.0 to v2.7: When "It Works" Meets "It Scales"

The evolution from trelix v1.0 to v2.7 highlights the challenges developers face when scaling an application that initially functions well in small settings. Initially, the AdaptiveRouter failed to properly utilize the retrieval_config parameter, causing confusion over which settings were active. This oversight revealed deeper issues in the plumbing that connected components like Retriever and QueryPlan. The journey underscores the importance of robust integration and configuration management when scaling software, emphasizing that initial success doesn't guarantee scalability without thorough architectural review.